Energy Efficient Building Design College of Architecture Illinois Institute of Technology, Chicago. Ceiling/Airspace

Size: px
Start display at page:

Download "Energy Efficient Building Design College of Architecture Illinois Institute of Technology, Chicago. Ceiling/Airspace"

Transcription

1 HEAT GAINS and LOSSES : ROOFS and WALLS Wall Roof Ts To Ts To Ti Ceiling/Airspace Ti Roof and wall are analyzed in the same way. In winter the heat loss is simple transmission based on the inside and outside temperature, and U-value of composite structure; Q(winter) = U*A*(Ti-To) Ti = Inside air temperature To = Outside air temperature In summer the solar radiation affects the outside surface of wall and roof. The absorbed radiation increases the temperature of the outside surface to a value that is greater than outside air temperature. This outside surface temperature is called Sol-air temperature. It depends on the properties of wall and roof structure, outside surface material and color, and solar radiation intensity component perpendicular to the outside surface. The solar radiation amount depends on the orientation of the surface, solar altitude angle, and solar azimuth angle. An approximate equation for the sol-air temperature (Ts) of the outside surface of a given wall or roof is: Ts = To + A * (Id + Is) / Hso A = absorption coefficient of outside surface Id = direct solar radiation on surface Is = scatter or diffuse solar radiation Hso = outside wall or roof surface film resistance The heat gain through a wall or roof in summer is: Q(summer) = U*A*(Ts - Ti) Q must be adjusted for thermal lag and time delay. OR Q(summer) = U*A*(CLTD) using the CLTD method Instructor: Varkie C. Thomas, Ph.D., P.E. Skidmore, Owings & Merrill LLP ARCH-551 (Fall-2002) ARCH 552 (Spring-2003) F12-1

2 Wall CLTD selection 1. Use ASHRAE table 8.5, page 8.26 (page 26 note) to determine (a) principal mass of the composite wall, and (b) ASHRAE code number of the wall construction. 2. Determine placement of the principal mass with respect to insulation and the outdoors. This can be (a) inside, and (b) outside. 3. Calculate the overall resistance (R-value) of the composite wall. 4. Determine secondary material category of the composite wall. Category examples are (a.) stucco (b) steel or lightweight siding, and (c) face brick 5. Use ASHRAE table 8.6A, 8.6B or 8.6C (page 27,28,29) to determine the wall type no. 6. Determine the latitude of the building location. 7. Select the appropriate ASHRAE table from 8.3A (24ºN), 8.3B (36ºN) or 8.3C (48ºN) based on latitude (page note). 8. Go to table for given wall type number. 9. Determine CLTD for (a) wall number and (b) hour of the day 10. Correct CLTD for (a.) indoor temperature = 78ºF (b) outdoor mean temperature = 85ºF. (The CLTD tables are based on this condition. A correction is required for other conditions) 11. CLTD (corrected) = CLTD (table) + (78-Tr) + (Tm-85). Roof CLTD selection 1. From ASHRAE table 8.5, page 8.26 (page 26 note) determine (a) principal mass of the composite roof, and (b) ASHRAE code number of this mass. 2. Determine placement of the principal mass with respect to insulation and the outdoors. This can be (a) inside (b) outside (c) evenly placed or no insulation. 3. Calculate the overall resistance (R-value) of the composite roof. 4. Determine presence or absence of a suspended ceiling. 5. From ASHRAE table 8.2 page 8.25 (page 25 note) determine the roof type no. 12. Determine the latitude of the building location. 13. Select the appropriate ASHRAE table from 8.2A (24ºN), 8.2B (36ºN) or 8.2C (48ºN) based on latitude (page 8.15,15 note). 14. Go to table for given roof type number. 15. Determine CLTD for (a) roof number and (b) hour of the day 16. Correct CLTD for (a.) indoor temperature = 78ºF (b) outdoor mean temperature = 85ºF. (The CLTD tables are based on this condition. A correction is required for other conditions) 17. CLTD (corrected) = CLTD (table) + (78-Tr) + (Tm-85). Instructor: Varkie C. Thomas, Ph.D., P.E. Skidmore, Owings & Merrill LLP ARCH-551 (Fall-2002) ARCH 552 (Spring-2003) F12-2

3 ROOF AND WALL HEAT GAIN (CLTD METHOD) In CLTD/SCL/CLF method the heat gain through wall and roof is Q = U*A*(CLTD) Q = Sensible Heat Gain through Wall or Roof A = Surface Area of Wall or Roof U = Overall U-Value for composite Wall or Roof CLTD=Cooling load temperature difference from ASHRAE table for a given 1) Latitude 2) Wall or roof type 3) Wall or roof exposure orientation 4) Hour of day ASHRAE tables are for latitude 24ºN, 36ºN or 48ºN, which cover U.S.A and Canada, for 16 predefined wall types and 14 predefined roof types. Example NW N NE Building : 120'L x 120'W x 20'H Latitude : 24 o N W E All Exterior Wall Areas = 40' x 20' = 800 ft2 Month : July SW S SE No Windows Wall Type : Light Construction Wall Facing Light Construction : CLTD Values for Hours 8 AM to 7 PM N NE E SE S SW W NW SUM Simultaneous peak of all walls = 6:00 PM Instructor: Varkie C. Thomas, Ph.D., P.E. Skidmore, Owings & Merrill LLP ARCH-551 (Fall-2002) ARCH 552 (Spring-2003) F12-3

4 Example Latitude : 24 o N Month : July Wall Type : Medium Construction Facing Hours 11AM-10PM N NE E SE S SW W NW SUM Simultaneous peak of all walls = 9:00 PM Example Latitude : 24 o N Month : July Wall Type : Heavy Construction Facing Hours 1PM-12MIDNIGHT N NE E SE S SW W NW SUM Simultaneous peak of all walls = 10:00 PM Instructor: Varkie C. Thomas, Ph.D., P.E. Skidmore, Owings & Merrill LLP ARCH-551 (Fall-2002) ARCH 552 (Spring-2003) F12-4

5 NOTES: Wall CLTD values in the table are based on Dark wall surface outside Indoor room temperature = 78ºF (Troom). Outdoor maximum temperature = 95ºF (Tmax) Average outdoor temperature = 85ºF (Tavg) Daily range = 21ºF Outside surface film resistance = hr.ft².ºf / Btu Inside surface film resistance = hr.ft².ºf / Btu Tavg = Tmax ( Daily range / 2) Tmax and daily range are available from ASHRAE weather data for cooling loads design calculation. ADJUSTMENT TO TABLE DATA (CLTD Corrected) CLTD Corrected = CLTD table + (78-Troom) + (Tavg-85) Example: Wall Type = 9; Tavg = 90ºF; Troom = 70ºF; Medium Construction; 9 PM; West Wall CLTD Corrected = CLTD table + (78-70) + (90-85) = = 60 EXAMPLE: ROOF Example Latitude : 24 o N Month : July Roof type Hours 9AM-10PM Roof Type 1 (light) peaks at 2:00 PM and Roof Type 14 (heavy peaks at 7 PM Instructor: Varkie C. Thomas, Ph.D., P.E. Skidmore, Owings & Merrill LLP ARCH-551 (Fall-2002) ARCH 552 (Spring-2003) F12-5

6 NOTES: Roof CLTD values in the table are based on Dark roof surface outside Indoor room temperature = 78ºF (Troom). Outdoor maximum temperature = 95ºF (Tmax) Average outdoor temperature = 85ºF (Tavg) Daily range = 21ºF Outside surface film resistance = hr.ft².ºf / Btu Inside surface film resistance = hr.ft².ºf / Btu Tavg = Tmax ( Daily range / 2) Tmax and daily range are available from ASHRAE weather data for cooling loads design calculation. ADJUSTMENT TO TABLE DATA (CLTD Corrected) CLTD Corrected = CLTD table + (78-Troom) + (Tavg-85) Example: Roof Type = 5; Tavg = 90ºF; Troom = 70ºF; At 5:00 PM CLTD Corrected = CLTD table + (78-70) + (90-85) = = 84 o F Instructor: Varkie C. Thomas, Ph.D., P.E. Skidmore, Owings & Merrill LLP ARCH-551 (Fall-2002) ARCH 552 (Spring-2003) F12-6

7 EXAMPLE: WALL AND ROOF N WALLS and ROOF 100 ft Example 24 o N Latitude Building: 100'L x 100'W x 300'H (No Glass) 300 ft E Calculate Heat Transfer for: S (1) Light Construction (Wall type = 3, Roof type = 3) (2) Heavy Construction (Wall = 16, Roof = 14) 100 ft July L I G H T C O N S T R U C T I O N July H E A V Y C O N S T R U C T I O N Hour Wall Type = 3, Roof Type = 3 Hour Wall Type = 16, Roof Type = 14 No. N E S W RF No. N E S W RF Instructor: Varkie C. Thomas, Ph.D., P.E. Skidmore, Owings & Merrill LLP ARCH-551 (Fall-2002) ARCH 552 (Spring-2003) F12-7

8 Building Length (ft) = 100 Width (ft) = 100 Height (ft) = 300 Wall Area (ft2) = 30,000 Roof Area (ft2) = 10,000 Wall U-value = 0.2 Roof U-value = 0.2 Calculate Heat Gains at: (1) 8:00 AM (2) 12:00 Noon (3) 4:00 PM (4) 8:00 PM (5) 12:00 Midnight Heat Gain (btu/hr) = Area * U-value * CLTD MBH = 1000 btu/hr July N O R T H E A S T S O U T H W E S T R O O F TOT Hr.No. CLTD MBH CLTD MBH CLTD MBH CLTD MBH CLTD MBH MBH L I G H T C O N S T R U C T I O N Peaks at 4 PM H E A V Y C O N S T R U C T I O N Peaks at 8 PM Envelope Solar Radiation BTUH Solar Heat Gain Light Contruction MBH Radiation MBH Heavy Construction MBH BTUH 1000 MBH 800 MBH 300 BTUH 600 MBH 200 BTUH 400 MBH 200 MBH 100 BTUH 8:00 12:00 4:00 8:00 12:00 AM Noon PM PM Mdngt Instructor: Varkie C. Thomas, Ph.D., P.E. Skidmore, Owings & Merrill LLP ARCH-551 (Fall-2002) ARCH 552 (Spring-2003) F12-8

AIRCONDITIONING Cooling Loads Calculations

AIRCONDITIONING Cooling Loads Calculations Calculations -1- AIRCONDITIONING Cooling s Calculations Employer : 4M SA Project Location : ASHRAE Office Room : Example from ASHRAE 2013 Handbook - Fundamentals : Chapter 18, Single Room Example (p. 18.37)

More information

Cooling Load Calculations and Principles

Cooling Load Calculations and Principles Cooling Load Calculations and Principles Course No: M06-004 Credit: 6 PDH A. Bhatia Continuing Education and Development, Inc. 9 Greyridge Farm Court Stony Point, NY 10980 P: (877) 322-5800 F: (877) 322-4774

More information

THERMAL LOSSES Thermal Losses Calculations

THERMAL LOSSES Thermal Losses Calculations Calculations -1- THERMAL LOSSES Thermal Losses Calculations Employer : 4M SA Project Location : ASHRAE Office Room : Example from ASHRAE 2013 Handbook - Fundamentals : Chapter 18, Single Room Example Peak

More information

Energy Efficient Building Design College of Architecture Illinois Institute of Technology, Chicago. Relative Humidities RH% 49.4. 0.

Energy Efficient Building Design College of Architecture Illinois Institute of Technology, Chicago. Relative Humidities RH% 49.4. 0. Psychrometrics Psychrometric Chart Relative Humidities RH% 49.4 100% 80% 0.030 Enthalpies 70% H btu/lb 46.5 0.028 85 Not to Scale 0.026 Humidity Numbers and Values 43.7 60% Ratios are approximate 0.024

More information

Software Development for Cooling Load Estimation by CLTD Method

Software Development for Cooling Load Estimation by CLTD Method IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) ISSN: 2278-1684Volume 3, Issue 6 (Nov. - Dec. 2012), PP 01-06 Software Development for Cooling Load Estimation by CLTD Method Tousif Ahmed Department

More information

Residential HVAC Load Sizing Training October 14, 2015. David Kaiser Green Code Plan Reviewer

Residential HVAC Load Sizing Training October 14, 2015. David Kaiser Green Code Plan Reviewer Residential HVAC Load Sizing Training October 14, 2015 David Kaiser Green Code Plan Reviewer DCRA - Green Building Division Regulations of green codes including: Green Building Act Green Construction Code

More information

HVAC Calculations and Duct Sizing

HVAC Calculations and Duct Sizing PDH Course M199 HVAC Calculations and Duct Sizing Gary D. Beckfeld, M.S.E., P.E. 2007 PDH Center 2410 Dakota Lakes Drive Herndon, VA 20171-2995 Phone: 703-478-6833 Fax: 703-481-9535 www.pdhcenter.com An

More information

Residential HVAC System Sizing

Residential HVAC System Sizing Residential HVAC System Sizing William P. Goss University of Massachusetts, Amherst, Massachusetts, USA Corresponding email: goss@acad.umass.edu SUMMARY Heating, ventilating and air-conditioning (HVAC)

More information

1/9/2013. Terminology Calculating Heat Transfer Code Requirements Design Examples and Sustainability

1/9/2013. Terminology Calculating Heat Transfer Code Requirements Design Examples and Sustainability 1/9/13 By Brett T. Fagan, P.E. Presented by Marie Horan, P.E. Building Diagnostics, Inc. Building Diagnostics Terminology Calculating Heat Transfer Code Requirements Design Examples and Sustainability

More information

CHAPTER 3. BUILDING THERMAL LOAD ESTIMATION

CHAPTER 3. BUILDING THERMAL LOAD ESTIMATION CHAPTER 3. BUILDING THERMAL LOAD ESTIMATION 3.1 Purpose of Thermal Load Estimation 3.2 Heating Load versus Cooling Load 3.3 Critical Conditions for Design 3.4 Manual versus Computer Calculations 3.5 Heating

More information

THE NATIONAL BUILDING REGULATIONS PART XA: ENERGY EFFICIENCY. Presentation by Peter Henshall-Howard: HEAD: BUILDING DEVELOPMENT MANAGEMENT.

THE NATIONAL BUILDING REGULATIONS PART XA: ENERGY EFFICIENCY. Presentation by Peter Henshall-Howard: HEAD: BUILDING DEVELOPMENT MANAGEMENT. THE NATIONAL BUILDING REGULATIONS PART XA: ENERGY EFFICIENCY. Presentation by Peter Henshall-Howard: HEAD: BUILDING DEVELOPMENT MANAGEMENT. A Diagrammatic representation of the relationship between the

More information

) and air spaces (R a

) and air spaces (R a 5.3.3 Thermal Resistance (R-value) Common thermal properties of materials and air spaces are based on steady state tests, which measure the heat that passes from the warm side to the cool side of the test

More information

SELECTIVE GLAZING FOR SUN CONTROL

SELECTIVE GLAZING FOR SUN CONTROL SUN CONTROL GLAZING SELECTIVE GLAZING FOR SUN CONTROL Sun Factor 1st level performance for direct solar energy Solar energy control Solar control coating Only if the glass is exposed to sun rays! 2nd level

More information

Roof insulations must perform the basic function of helping to control fluctuations in building interior temperature

Roof insulations must perform the basic function of helping to control fluctuations in building interior temperature Thermal Values Roof insulations must perform the basic function of helping to control fluctuations in building interior temperature relative to changing exterior temperatures. By reducing interior temperature

More information

SUPPLEMENTING COMMERCIAL HVAC SYSTEMS WITH HVLS FANS

SUPPLEMENTING COMMERCIAL HVAC SYSTEMS WITH HVLS FANS SUPPLEMENTING COMMERCIAL HVAC SYSTEMS WITH HVLS FANS Improving Energy Efficiency and Lowering Energy Costs with HVLS Fans As the cost of energy continues to rise, building designers and engineers are constantly

More information

Heating Load Calculation

Heating Load Calculation Heating Load Calculation ME 425 Air Conditioning System Design Keith E. Elder, P.E. Heating Load Calculation The heating load calculation begins with the determination of heat loss through a variety of

More information

Air Conditioning Clinic

Air Conditioning Clinic Air Conditioning Clinic Cooling and Heating Load Estimation One of the Fundamental Series April 2011 TRG-TRC002-EN Cooling and Heating Load Estimation One of the Fundamental Series A publication of Trane,

More information

PROSOLIS: a Web Tool for Thermal and Daylight Characteristics Comparison of Glazing Complexes

PROSOLIS: a Web Tool for Thermal and Daylight Characteristics Comparison of Glazing Complexes PROSOLIS: a Web Tool for Thermal and Daylight Characteristics Comparison of Glazing Complexes O. Dartevelle, M. Sc. Arch. A. Deneyer, M. Sc. Arch. M. Bodart, Prof. Université catholique de Louvain (U.C.L.)

More information

Solar Water Heating. Solar Thermal Fundamentals Solar In floor Heating Solar Domestic Water Heating

Solar Water Heating. Solar Thermal Fundamentals Solar In floor Heating Solar Domestic Water Heating Solar Water Heating Solar Thermal Fundamentals Solar In floor Heating Solar Domestic Water Heating How this all started What are 1,000 silver and black things on all those roofs I had a chance to see these

More information

EN 1279-5. Insulating glass units, intended to be used in buildings and construction works

EN 1279-5. Insulating glass units, intended to be used in buildings and construction works 4 (#2) - 12-4, Thermally Toughened Heat and Solar Control Glass 1 (C) 3-12 - 4-12 - 4 29 (-1; -4) db U-value (EN 673) 1,6 W / (m 2 K) Light transmission and reflection 0,71/0,10/0,11 Solar energy characteristics

More information

Introduction to Energy Performance of Brick Masonry

Introduction to Energy Performance of Brick Masonry TECHNICAL NOTES on Brick Construction 1850 Centennial Park Drive, Reston, Virginia 20191 www.gobrick.com 703-620-0010 Introduction to Energy Performance of Brick Masonry 4 January 2016 Abstract: Thermal

More information

HVAC Made Easy: A Guide to Heating & Cooling Load Estimation

HVAC Made Easy: A Guide to Heating & Cooling Load Estimation PDHonline Course M196 (4 PDH) HVAC Made Easy: A Guide to Heating & Cooling Load Estimation Instructor: A. Bhatia, B.E. 2012 PDH Online PDH Center 5272 Meadow Estates Drive Fairfax, VA 22030-6658 Phone

More information

Full credit for this chapter to Prof. Leonard Bachman of the University of Houston

Full credit for this chapter to Prof. Leonard Bachman of the University of Houston Chapter 6: SOLAR GEOMETRY Full credit for this chapter to Prof. Leonard Bachman of the University of Houston SOLAR GEOMETRY AS A DETERMINING FACTOR OF HEAT GAIN, SHADING AND THE POTENTIAL OF DAYLIGHT PENETRATION...

More information

REFLECTIVE INSULATION, RADIANT BARRIERS,

REFLECTIVE INSULATION, RADIANT BARRIERS, REFLECTIVE INSULATION, RADIANT BARRIERS, AND INTERIOR RADIATION CONTROL COATINGS FOR USE IN PRE-ENGINEERED METAL BUILDINGS Technical Bulletin #107 Scope: In both the United States and Canada there is significant

More information

Heat Transfer. Energy from the Sun. Introduction

Heat Transfer. Energy from the Sun. Introduction Introduction The sun rises in the east and sets in the west, but its exact path changes over the course of the year, which causes the seasons. In order to use the sun s energy in a building, we need to

More information

Cooling Load Estimation and Air Conditioning Unit Selection for Hibir Boat

Cooling Load Estimation and Air Conditioning Unit Selection for Hibir Boat The International Journal Of Engineering And Science (IJES) Volume 3 Issue 5 Pages 63-72 2014 ISSN (e): 2319 1813 ISSN (p): 2319 1805 Cooling Load Estimation and Air Conditioning Unit Selection for Hibir

More information

The Miracle of Insulation in Hot-Humid Climate Building

The Miracle of Insulation in Hot-Humid Climate Building International Journal of Renewable Energy, Vol. 4, No. 1, January 29 The Miracle of Insulation in Hot-Humid Climate Building Sarigga Pongsuwan Ph.D.Student, The Faculty of Architecture, Chulalongkorn University,

More information

Eco Pelmet Modelling and Assessment. CFD Based Study. Report Number 610.14351-R1D1. 13 January 2015

Eco Pelmet Modelling and Assessment. CFD Based Study. Report Number 610.14351-R1D1. 13 January 2015 EcoPelmet Pty Ltd c/- Geoff Hesford Engineering 45 Market Street FREMANTLE WA 6160 Version: Page 2 PREPARED BY: ABN 29 001 584 612 2 Lincoln Street Lane Cove NSW 2066 Australia (PO Box 176 Lane Cove NSW

More information

Embodied Energy of Building Envelopes and its Influence on Cooling Load in Typical Indonesian Middle Class Houses

Embodied Energy of Building Envelopes and its Influence on Cooling Load in Typical Indonesian Middle Class Houses Embodied Energy of Building Envelopes and its Influence on Cooling Load in Typical Indonesian Middle Class Houses Agya Utama and Shabbir H. Gheewala The Joint Graduate School of Energy and Environment,

More information

The Influence of Insulation Styles on the Air Conditioning Load of Japanese Multi- Family Residences

The Influence of Insulation Styles on the Air Conditioning Load of Japanese Multi- Family Residences The Influence of Insulation Styles on the Air Conditioning Load of Japanese Multi- Family Residences Yupeng Wang 1, and Hiroatsu Fukuda 2 1 Department of BCEE, Concordia University, Canada, Email: wangyupeng0628@gmail.com

More information

FACTORS AFFECTING ENERGY CONSUMPTION OF BUILDINGS

FACTORS AFFECTING ENERGY CONSUMPTION OF BUILDINGS FACTORS AFFECTING ENERGY CONSUMPTION OF BUILDINGS 1 Ralf Lindberg, Professor Minna Korpi, M.Sc. Juha Vinha, Dr.Tech. June 11, 2008 Department of Civil Engineering, Tampere University of Technology 2 BACKGROUND

More information

HOW TO CONDUCT ENERGY SAVINGS ANALYSIS IN A FACILITY VALUE ENGINEERING STUDY

HOW TO CONDUCT ENERGY SAVINGS ANALYSIS IN A FACILITY VALUE ENGINEERING STUDY HOW TO CONDUCT ENERGY SAVINGS ANALYSIS IN A FACILITY VALUE ENGINEERING STUDY Benson Kwong, CVS, PE, CEM, LEED AP, CCE envergie consulting, LLC Biography Benson Kwong is an independent consultant providing

More information

Spitler, J.D., F.C. McQuiston, K. Lindsey. 1993. The CLTD/SCL/CLF Cooling Load Calculation Method, ASHRAE Transactions. 99(1): 183-192.

Spitler, J.D., F.C. McQuiston, K. Lindsey. 1993. The CLTD/SCL/CLF Cooling Load Calculation Method, ASHRAE Transactions. 99(1): 183-192. This paper has been downloaded from the Building and Environmental Thermal Systems Research Group at Oklahoma State University (www.hvac.okstate.edu) The correct citation for the paper is: Spitler, J.D.,

More information

ANSI/ASHRAE Standard 140-2004 Building Thermal Envelope and Fabric Load Tests

ANSI/ASHRAE Standard 140-2004 Building Thermal Envelope and Fabric Load Tests ANSI/ASHRAE Standard 140-2004 Building Thermal Envelope and Fabric Load Tests DesignBuilder Version 1.2.0 (incorporating EnergyPlus version 1.3.0) - June 2006 1.0 Purpose The ANSI/ASHRAE Standard 140-2004

More information

EN 1279-5. Insulating glass units, intended to be used in buildings and construction works

EN 1279-5. Insulating glass units, intended to be used in buildings and construction works 4 (#2) - 12-4, Heat Control Glass (Low-E #2) + Dry Air (100%) + Clear 4-12 - 4 29 (-1; -4) db U-value (EN 673) 1,6 W / (m 2 K) Light transmission and reflection 0,79/0,12/0,12 Solar energy characteristics

More information

Simplified Solar Heating Model

Simplified Solar Heating Model Simplified Solar Heating Model For SolarAttic PCS1 Pool Heater Prepared from notes of the 1994 Scoping Analysis as performed by Professor Ephraim M. Sparrow, University of Minnesota, Minneapolis, MN. Heat

More information

Factors affecting energy consumption of buildings

Factors affecting energy consumption of buildings Factors affecting energy consumption of buildings Ralf Lindberg, Minna Korpi, Juha Vinha ABSTRACT The thermal insulation requirements of the Building Code of Finland have been tightened several times since

More information

6.0 TECHNICAL ANALYSIS #3 EIFS Panels vs. GFRC Panels

6.0 TECHNICAL ANALYSIS #3 EIFS Panels vs. GFRC Panels 6.0 TECHNICAL ANALYSIS #3 EIFS Panels vs. GFRC Panels 6.1 Problem Statement The original design of the included Glass-Fiber Reinforced Concrete (GFRC) Panels for the majority of the façade. During the

More information

Certified Residential Energy Auditor (REA) Study Guide

Certified Residential Energy Auditor (REA) Study Guide Certified Residential Energy Auditor (REA) Study Guide This guide provides an overview of the Certified Residential Energy Auditor (REA) Program, including how to register for the REA Training Seminar

More information

CHAPTER 3. The sun and the seasons. Locating the position of the sun

CHAPTER 3. The sun and the seasons. Locating the position of the sun zenith 90 summer solstice 75 equinox 52 winter solstice 29 altitude angles observer Figure 3.1: Solar noon altitude angles for Melbourne SOUTH winter midday shadow WEST summer midday shadow summer EAST

More information

Saving Heating Costs In Warehouses

Saving Heating Costs In Warehouses 2005, American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (www.ashrae.org). Reprinted by permission from ASHRAE Journal, (Vol. 47, No. 12, December 2005). This article may not

More information

University of Waterloo Department of Civil Engineering. CE507 Building Science and Technology

University of Waterloo Department of Civil Engineering. CE507 Building Science and Technology University of Waterloo Department of Civil Engineering CE507 Building Science and Technology PHYSICS QUIZ # SOLUTIONS Question : Buildings [0] i) Provide a short but completely general definition of the

More information

Understanding Heat Transfer

Understanding Heat Transfer Thermal Mass and R-Value: Making Sense of a Confusing Issue Understanding Heat Transfer Thermal Mass Thermal Bridging Overall R Value or Whole Wall R Value "Mass-Enhanced R-Value" Thermal lag or time delay

More information

EN 1279-5. Insulating glass units, intended to be used in buildings and construction works

EN 1279-5. Insulating glass units, intended to be used in buildings and construction works 4 (#2) - 12-4, Heat Control Glass (Low-E #2) + Argon (90%) + Clear 4-12 - 4 29 (-1; -4) db U-value (EN 673) 1,3 W / (m 2 K) Light transmission and reflection 0,79/0,12/0,12 Solar energy characteristics

More information

EN 1279-5. NPD Reaction to fire. NPD External fire behaviour. NPD Bullet resistance. NPD Explosion resistance. NPD Burglar resistance (EN 356)

EN 1279-5. NPD Reaction to fire. NPD External fire behaviour. NPD Bullet resistance. NPD Explosion resistance. NPD Burglar resistance (EN 356) 4 (# 2) - 12-33.1, Heat Control Glass (Low-E #2) + Argon (90%) + Pendulum body impact resistance - 12-2 (B) 2 4-12 - 33.1 32 (-1; -3) db U-value (EN 673) 1,3 W / (m 2 K) Light transmission and reflection

More information

Energy Savings with Window Retrofits

Energy Savings with Window Retrofits Center for Energy and Environment Energy Savings with Window Retrofits Presentation to Energy Design Conference & Expo Duluth, MN February 25, 2014 Agenda v Background v Introduction: What are window retrofits?

More information

Evaluation of Double Skin Glass Facades in terms of Cost Efficiency with respect to Energy Consumption

Evaluation of Double Skin Glass Facades in terms of Cost Efficiency with respect to Energy Consumption Evaluation of Double Skin Glass Facades in terms of Cost Efficiency with respect to Energy Consumption Ikbal Cetiner, MSc., Research Assistant 1 Murat Aygun, PhD., Assoc. Prof. 2 1 Istanbul Technical University.

More information

Sun Position in Florida

Sun Position in Florida Sun Position in Florida Author McCluney, Ross Publication Number FSEC-DN-4-83 Revised March 1985 Copyright Copyright Florida Solar Energy Center/University of Central Florida 1679 Clearlake Road, Cocoa,

More information

Adaptive strategies for office spaces in the UK climate

Adaptive strategies for office spaces in the UK climate International Conference Passive and Low Energy Cooling 631 Adaptive strategies for office spaces in the UK climate I. Gallou Environment & Energy Studies Programme, Architectural Association Graduate

More information

FACTSHEET Assessing the Feasibility of Using Solar-Thermal Systems for Your Agricultural or Agri-Food Operation

FACTSHEET Assessing the Feasibility of Using Solar-Thermal Systems for Your Agricultural or Agri-Food Operation FACTSHEET Assessing the Feasibility of Using Solar-Thermal Systems for Your Agricultural or Agri-Food Operation Solar-thermal systems collect the sun's energy and convert it into heat. This energy can

More information

DEPLOSUN REFLECTORS. Carrer dels Vergós, 11 08017 Barcelona Spain Tel: (+34) 934.090.359 Fx: (+34) 934.090.358 info@espaciosolar.

DEPLOSUN REFLECTORS. Carrer dels Vergós, 11 08017 Barcelona Spain Tel: (+34) 934.090.359 Fx: (+34) 934.090.358 info@espaciosolar. DEPLOSUN REFLECTORS DEPLOSUN REFLECTORS DEPLOSUN REFLECTORS is an innovative reflector system which captures the sun rays in the upper part of the atria and redirects them downwards, increasing daylight

More information

Temperature Rise Above

Temperature Rise Above Spec-00488 E763.422.2211 763.422.2600 Thermal Management Heat Dissipation in Electrical Enclosures Thermal Management Heat Dissipation in Electrical Enclosures Heat Dissipation in Sealed Electrical Enclosures

More information

Hourly Analysis Program v.4.1 Page 1 of 1

Hourly Analysis Program v.4.1 Page 1 of 1 Air System Design Load Summary for Zona 9 DESIGN COOLING DESIGN HEATING COOLING DATA AT Feb 1800 HEATING DATA AT DES HTG COOLING OA DB / WB 32.4 C / 23.1 C HEATING OA DB / WB -0.6 C / -3.2 C Sensible Latent

More information

LOW-E PHOTOVOLTAIC GLASS TECHNICAL GUIDE

LOW-E PHOTOVOLTAIC GLASS TECHNICAL GUIDE LOW-E GLASS TECHNICAL GUIDE SELECTIVE INFRARED RADIATION FILTER Infrared radiation coming from natural sun light can cause a heat build-up inside building; This situation leads to thermal imbalance during

More information

Building envelope and heat capacity: re-discovering the thermal mass for winter energy saving

Building envelope and heat capacity: re-discovering the thermal mass for winter energy saving 346 2nd PALENC Conference and 28th AIVC Conference on Building Low Energy Cooling and Building envelope and heat capacity: re-discovering the thermal mass for winter energy saving S. Ferrari Politecnico

More information

Diego Ibarra Christoph Reinhart Harvard Graduate School of Design

Diego Ibarra Christoph Reinhart Harvard Graduate School of Design Building Performance Simulation for Designers - Energy DesignBuilder // EnergyPlus Tutorial #2 Load Schedules GEOMETRY LOADS RESULTS Diego Ibarra Christoph Reinhart Harvard Graduate School of Design OVERVIEW

More information

Design of an Eco Friendly and Self Sufficient Cabin

Design of an Eco Friendly and Self Sufficient Cabin Design of an Eco Friendly and Self Sufficient Cabin This project is a real programme which is to develop a prototype of an eco friendly cabin. In this project, I choose two sites, Aberdeen and Brighton,

More information

Passive Solar Design and Concepts

Passive Solar Design and Concepts Passive Solar Design and Concepts Daylighting 1 Passive Solar Heating Good architecture? The judicious use of south glazing coupled with appropriate shading and thermal mass. Summer Winter Passive solar

More information

DEVELOPMENT OF AN OPEN SOURCE HOURLY BUILDING ENERGY MODELING SOFTWARE TOOL

DEVELOPMENT OF AN OPEN SOURCE HOURLY BUILDING ENERGY MODELING SOFTWARE TOOL DEVELOPMENT OF AN OPEN SOURCE HOURLY BUILDING ENERGY MODELING SOFTWARE TOOL Brittany Hanam, MASc, EIT RDH Building Engineering Ltd. Vancouver, BC John Straube, PhD, P.Eng. Building Engineering Group, Civil

More information

BIPV modules replace. These advantages make BIPV one of the fastest growing segments of the photovoltaic industry [3]. PV specialists and innovative d

BIPV modules replace. These advantages make BIPV one of the fastest growing segments of the photovoltaic industry [3]. PV specialists and innovative d COMPARISON OF DIFFERENT TYPE OF CONFIGURATIONS FOR PHOTOVOLTAIC FAÇADE IN COMPOSITE CLIMATIC ZONE OF INDIA (NEW DELHI) Himanshu Gupta, Sumit Sharma, Sanjay Mathur, Jyotirmay Mathur Malaviya National Institute

More information

Introduction. 1. Heat Transfer. In Townsville s climate it is essential to choose building materials that perform well in our local conditions.

Introduction. 1. Heat Transfer. In Townsville s climate it is essential to choose building materials that perform well in our local conditions. In Townsville s climate it is essential to choose building materials that perform well in our local conditions. Choosing the correct materials and insulation will improve the overall thermal performance

More information

SOLAR ENERGY How much strikes the earth? How much can my building get? When is it too much?

SOLAR ENERGY How much strikes the earth? How much can my building get? When is it too much? SOLAR ENERGY How much strikes the earth? How much can my building get? When is it too much? The sun: friend of foe? Drawing by Le Corbusier ENGS 44 Sustainable Design Benoit Cushman-Roisin 14 April 2015

More information

EN 1279-5. Insulating glass units, intended to be used in buildings and construction works

EN 1279-5. Insulating glass units, intended to be used in buildings and construction works 4-12 - 4 (#3), Clear Float Glass + Argon (90%) +Heat Control Glass 4-12 - 4 29 (-1; -4) db U-value (EN 673) 1,3 W / (m 2 K) Light transmission and reflection 0,79/0,12/0,12 Solar energy characteristics

More information

Solar Energy Utilisation in Buildings

Solar Energy Utilisation in Buildings Solar Energy Utilisation in Buildings P. Karava, PhD Assistant professor Department of Civil and Environmental Engineering University of Western Ontario 2 Modern Buildings Change in architectural style

More information

Below are detailed instructions for using the EMS load calculator.

Below are detailed instructions for using the EMS load calculator. Introduction The EMS load calculator is designed to make load calculating as painless as possible. For sizing the equipment, only the first three tabs (Steps 1, 2 & 3) need to be completed. This process

More information

R-VALUES AND U-FACTORS OF SINGLE WYTHE CONCRETE MASONRY WALLS. TEK 6-2C Energy & IAQ (2013) Related TEK: 2-5B, 6-1C, 6-4B, 6-11A, 6-12C, 6-12D, 6-12E

R-VALUES AND U-FACTORS OF SINGLE WYTHE CONCRETE MASONRY WALLS. TEK 6-2C Energy & IAQ (2013) Related TEK: 2-5B, 6-1C, 6-4B, 6-11A, 6-12C, 6-12D, 6-12E An information series from the national authority on concrete masonry technology R-VALUES AND U-FACTORS OF SINGLE WYTHE CONCRETE MASONRY WALLS TEK 6-2C Energy & IAQ (201) INTRODUCTION Single wythe concrete

More information

Cool Roofs and Thermal Insulation: Energy Savings and Peak Demand Reduction

Cool Roofs and Thermal Insulation: Energy Savings and Peak Demand Reduction Cool Roofs and Thermal Insulation: Energy Savings and Peak Demand Reduction Marcus V.A. Bianchi, PhD André O. Desjarlais ASHRAE member William A. Miller, PhD, PE ASHRAE member Thomas W. Petrie, PhD ASHRAE

More information

Solar Heating Basics. 2007 Page 1. a lot on the shape, colour, and texture of the surrounding

Solar Heating Basics. 2007 Page 1. a lot on the shape, colour, and texture of the surrounding 2007 Page 1 Solar Heating Basics Reflected radiation is solar energy received by collectorsfrom adjacent surfaces of the building or ground. It depends a lot on the shape, colour, and texture of the surrounding

More information

Constructions Database User Guide 5.9

Constructions Database User Guide <Virtual Environment> 5.9 Constructions Database User Guide 5.9 Page 1 of 35 Contents 1. Introduction...3 2. Units...4 3. Main Dialogue Project Constructions...5 3.1. Outline...5 3.2. Construction Classes

More information

ENERGY PERFORMANCE MODELLING AND HEAT RECOVERY UNIT EFFICIENCY ASSESSMENT OF AN OFFICE BUILDING

ENERGY PERFORMANCE MODELLING AND HEAT RECOVERY UNIT EFFICIENCY ASSESSMENT OF AN OFFICE BUILDING THERMAL SCIENCE: Year 2015, Vol. 19, No. 3, pp. 865-880 865 ENERGY PERFORMANCE MODELLING AND HEAT RECOVERY UNIT EFFICIENCY ASSESSMENT OF AN OFFICE BUILDING by Norbert L. HARMATI a*, Radomir J. FOLI] a,

More information

An energy efficient building for the Arctic climate Is a passive house sensible solution for Greenland? Content

An energy efficient building for the Arctic climate Is a passive house sensible solution for Greenland? Content An energy efficient building for the Arctic climate Is a passive house sensible solution for Greenland? Petra Vladyková Ph.D. Defense 3 rd of June 2011 Supervisors: Carsten Rode Toke Rammer Nielsen Søren

More information

CHAPTER 11: PASSIVE SOLAR HOMES

CHAPTER 11: PASSIVE SOLAR HOMES Chapter 11: Passive Solar Homes 159 CHAPTER 11: PASSIVE SOLAR HOMES Passive solar homes capture both the beauty of the outside world and the heat coming in from the sun. They are designed with the local

More information

RESNET National Rater Test Study Guide Outline

RESNET National Rater Test Study Guide Outline RESNET National Rater Test Study Guide Outline The RESNET national home energy rating standard spells out a listing of the knowledge base and skills set for Home Energy Ratings. Trainers and Rating Quality

More information

EARTH S ATMOSPHERE AND ITS SEASONS

EARTH S ATMOSPHERE AND ITS SEASONS EARTH S ATMOSPHERE AND ITS SEASONS Provided by Tasa Graphic Arts, Inc. for Earthʼs Atmosphere and Its Seasons CD-ROM http://www.tasagraphicarts.com/progeas.html 1.The Importance of Weather (wx) The U.S.

More information

Energy Efficiency in Buildings

Energy Efficiency in Buildings Energy Efficiency in Buildings Supplemental Guide to SANS 10400-XA & SANS 204 V. 3.0 Registered to: The Drawing Studio Image: digitalart / FreeDigitalPhotos.net Report Date: 26 August 2014 Practice Name:

More information

Radiant Cooling & Heating w/ Capillary Tubing

Radiant Cooling & Heating w/ Capillary Tubing Radiant Cooling & Heating w/ Capillary Tubing Chilly at Work? Office Formula Was Devised for Men What Is The Function Of The HVAC System? Offset space heat loss/gain Maintain the space within thermal comfort

More information

Energy Use in Residential Housing: A Comparison of Insulating Concrete Form and Wood Frame Walls

Energy Use in Residential Housing: A Comparison of Insulating Concrete Form and Wood Frame Walls PCA R&D Serial No. 415 Energy Use in Residential Housing: A Comparison of Insulating Concrete Form and Wood Frame Walls by John Gajda and Martha VanGeem 000 Portland Cement Association KEYWORDS Concrete,

More information

Case Study 13 Schools of Architecture and Design, Wellington tertiary education institute, New Zealand

Case Study 13 Schools of Architecture and Design, Wellington tertiary education institute, New Zealand Case Study Schools of Architecture and Design, Wellington tertiary education institute, New Zealand Winter Summer daylight intermediate, intermediate, climate temperate, oceanic altitude m heating degree

More information

1. The following information is from a leaflet produced by a double-glazing company.

1. The following information is from a leaflet produced by a double-glazing company. Heating and insulating buildings 1. The following information is from a leaflet produced by a double-glazing company. Change your single-glazed windows to our energy-efficient double glazed windows and

More information

Data Bulletin. Mounting Variable Frequency Drives in Electrical Enclosures Thermal Concerns OVERVIEW WHY VARIABLE FREQUENCY DRIVES THERMAL MANAGEMENT?

Data Bulletin. Mounting Variable Frequency Drives in Electrical Enclosures Thermal Concerns OVERVIEW WHY VARIABLE FREQUENCY DRIVES THERMAL MANAGEMENT? Data Bulletin April 2001 Raleigh, NC, USA Mounting Variable Frequency Drives in Electrical Enclosures Thermal Concerns OVERVIEW Variable frequency drives are available from manufacturers as enclosed engineered

More information

Comparative Analysis of Retrofit Window Film to Replacement with High Performance Windows

Comparative Analysis of Retrofit Window Film to Replacement with High Performance Windows Comparative Analysis of Retrofit Window Film to Replacement with High Performance Windows By Steve DeBusk, CEM, CMVP Global Energy Solutions Manager CPFilms, a Subsidiary of Solutia Inc. Abstract Energy

More information

Seasonal & Daily Temperatures. Seasons & Sun's Distance. Solstice & Equinox. Seasons & Solar Intensity

Seasonal & Daily Temperatures. Seasons & Sun's Distance. Solstice & Equinox. Seasons & Solar Intensity Seasonal & Daily Temperatures Seasons & Sun's Distance The role of Earth's tilt, revolution, & rotation in causing spatial, seasonal, & daily temperature variations Please read Chapter 3 in Ahrens Figure

More information

Review and Planning Workshop on Eco Town

Review and Planning Workshop on Eco Town 786 Review and Planning Workshop on Eco Town - 2012 Assoc. Prof. Dr. Ali Raza Soomro, Dept: of Architecture Kulliyyah of Architecture and Environmental Design, IIUM, Kuala Lumpur Introduction Found in

More information

Greenhouse Cooling. Why is Cooling Needed?

Greenhouse Cooling. Why is Cooling Needed? Greenhouse Cooling Why is Cooling Needed? Solar radiation is the heat input for the earth can radiate as much as 277 Btu/ft 2 /hr onto the surface of the earth on summer s day in coastal and industrial

More information

THESIS A REAL-TIME BUILDING HVAC MODEL IMPLEMENTED AS A TOOL FOR DECISION MAKING IN EARLY STAGES OF DESIGN. Submitted by.

THESIS A REAL-TIME BUILDING HVAC MODEL IMPLEMENTED AS A TOOL FOR DECISION MAKING IN EARLY STAGES OF DESIGN. Submitted by. THESIS A REAL-TIME BUILDING HVAC MODEL IMPLEMENTED AS A TOOL FOR DECISION MAKING IN EARLY STAGES OF DESIGN Submitted by Zaker Ali Syed Department of Mechanical Engineering In partial fulfillment of the

More information

Department of Mechanical and Materials Engineering Florida International University, Miami, FL. EML 4905 Senior Design Project

Department of Mechanical and Materials Engineering Florida International University, Miami, FL. EML 4905 Senior Design Project Department of Mechanical and Materials Engineering Florida International University, Miami, FL EML 4905 Senior Design Project HVAC Design for Green Building Miami Green Final Report Submitted By: James

More information

Is Your Envelope Effective? Mark Lawton P.Eng Morrison Hershfield Limited Vancouver

Is Your Envelope Effective? Mark Lawton P.Eng Morrison Hershfield Limited Vancouver Is Your Envelope Effective? Mark Lawton P.Eng Morrison Hershfield Limited Vancouver Designing an Effective Envelope Roofs Below Grade Walls and slabs Glazing & Windows Opaque portions of walls 2 3 Energy

More information

Residential Windows, 3 rd edition Corrected index 1

Residential Windows, 3 rd edition Corrected index 1 Residential Windows, 3 rd edition Corrected index 1 A absorptance definition, 78 determinants of, 78 79 energy performance and, 78 tinted glass, 84 acoustical properties of windows, 60 61 acrylic glazing

More information

Elegance SC. Solar Control

Elegance SC. Solar Control Elegance SC Solar Control Sapa Building System Building Understanding In an age of global warming, the reduction of carbon emissions is a key factor when both selecting materials for a building and how

More information

UNDERSTANDING AND USING THE HVAC DESIGN REVIEW FORM

UNDERSTANDING AND USING THE HVAC DESIGN REVIEW FORM Page 1 UNDERSTANDING AND USING THE HVAC DESIGN REVIEW FORM Each of the 38 points of requested information is discussed, and references to the supporting manual are given to substantiate the requirement.

More information

Radiant Heating and Cooling Systems BY KWANG WOO KIM, ARCH.D., MEMBER ASHRAE; BJARNE W. OLESEN, PH.D., FELLOW ASHRAE

Radiant Heating and Cooling Systems BY KWANG WOO KIM, ARCH.D., MEMBER ASHRAE; BJARNE W. OLESEN, PH.D., FELLOW ASHRAE TECHNICAL FEATURE Fundamentals at Work This article was published in ASHRAE Journal, February 2015. Copyright 2015 ASHRAE. Posted at www.ashrae.org. This article may not be copied and/or distributed electronically

More information

Core Science Keeping Buildings Warm

Core Science Keeping Buildings Warm Core Science Keeping Buildings Warm Name Homework Redhill School Q1. The diagram shows where heat is lost from a house that is not insulated. (a) (i) Through which part of the house is most heat lost?

More information

Roof Area Name: Metal Roof. American Science and Technology

Roof Area Name: Metal Roof. American Science and Technology Building: American Science and Technology Address: 6445 Packer Dr City, St: Wausau, WI Report Date: 4/16/2011 This Report consists of 8 pages. The EnergyWise Roof Calculator Online allows the user to determine

More information

Comparison of two calculation methods used to estimate cooling energy demand and indoor summer temperatures

Comparison of two calculation methods used to estimate cooling energy demand and indoor summer temperatures Comparison of two calculation methods used to estimate cooling energy demand and indoor summer temperatures Kai Sirén and Ala Hasan Helsinki University of Technology, Finland Corresponding email: kai.siren@tkk.fi

More information

Comments on How Exterior Paints and Interior Paints Can Play Roles in Conserving Energy. For Tech Traders Inc. By H. F. Poppendiek

Comments on How Exterior Paints and Interior Paints Can Play Roles in Conserving Energy. For Tech Traders Inc. By H. F. Poppendiek Comments on How Exterior Paints and Interior Paints Can Play Roles in Conserving Energy For Tech Traders Inc. By H. F. Poppendiek June 2002 GEOSCIENCE LTD 620 Marindustry Drive San Diego, California 92121

More information

Construction Industry Issues With Air Barriers

Construction Industry Issues With Air Barriers Construction Industry Issues With Air Barriers Presented by: Len Anastasi EXO-TEC Consulting, Inc. www.exo -tec.biz len@exo-tec.biz Industry Issue 1 Why do I want to make my building air tight? How is

More information

SOLEL SUNCOOLER SOLAR-POWERED AIR-CONDITIONING / HEATING SYSTEM

SOLEL SUNCOOLER SOLAR-POWERED AIR-CONDITIONING / HEATING SYSTEM SOLEL SUNCOOLER SOLAR-POWERED AIR-CONDITIONING / HEATING SYSTEM organization / project coordinator (address, telephone, email) Solel Solar Systems Ltd./ Mr. Avi Brenmiller 3, Hac'shara St, Industrial Zone

More information

Module 3.8. Window U-value

Module 3.8. Window U-value Module 3.8 Window U-value Learning Outcomes On successful completion of this module learners will be able to - Describe the concept of U-values and alternative energy rating system for windows. 2 Calculation

More information

Construction simulations with inside and outside insulation of temperature and vapor

Construction simulations with inside and outside insulation of temperature and vapor Construction simulations with inside and outside insulation of temperature and vapor 1 Research goal To separate the controlled indoor climate from the fluctuating outdoor temperature and reduce energy

More information

STAYFLEX CORROSION CONTROL AND THERMAL INSULATION SYSTEM

STAYFLEX CORROSION CONTROL AND THERMAL INSULATION SYSTEM STAYFLEX CORROSION CONTROL AND THERMAL INSULATION SYSTEM Installed in Pre-engineered Steel Buildings Provides Lowest Cost Construction Method for CORROSIVE AND WET Environments PREFERRED SOLUTIONS, INC.

More information