Sustainable Preservation Practices for Managing Storage Environments Webinar: April 3, 2013

Size: px

Start display at page:

Download "Sustainable Preservation Practices for Managing Storage Environments Webinar: April 3, 2013"

Allison Anne Terry
7 years ago
Views:

1 The Fundamentals of HVAC: What Shapes the Storage Environment Sustainable Preservation Practices for Managing Storage Environments Webinar: April 3, 2013

2 Introduction Presenter Jeremy Linden, Preservation Environment Specialist Image Permanence Institute, RIT

3 Technical Support and Questions Shae Trewin IPI Preservation Environment Specialist Lauren Parish IPI Web Designer

4 Technical Information Cable internet preferred rather than wireless or dial-up Participants can use their computer s speakers (VoIP) or telephone. United States Toll: +1 (909) Access Code: Audio PIN: Shown after joining the webinar Need Help? Contact Lauren Parish at lmppph@rit.edu or (585)

5 Questions? Submit questions using the Question Box located in the Go To Webinar control panel

6 Sustainable Preservation Practices for Managing Storage Environments About this project An Education and Training Grant from the National Endowment for the Humanities, Division of Preservation and Access

7 Outline of Webinar Influence of regional/local climate Importance of the building envelope Basics of HVAC systems: The Loop Heating/Cooling systems Subcool/Reheat systems Desiccant systems Evaporative cooling Where the energy goes Working as a team

8 The Goal: An Optimal Preservation Environment An optimal preservation environment is one that achieves the best possible preservation of collections at the least possible consumption of energy, and is sustainable over time.

10 Understanding HVAC

11 Defined: HVAC: Heating, Ventilation, Air Conditioning Mechanical intervention to condition air to a preferred temperature and relative humidity

12 HVAC Systems are a Circular Stream of Moving Air: The Loop Along Which: Temperature can be Raised or Lowered Humidity can be Raised or Lowered Filtration can Occur Outside Air can be Added and Removed

13 HVAC System Components Air Handling Unit Supply Air Ducts Spaces Served Terminal Equipment Return Air Path

14 Buildings Commonly Have Multiple Systems; Systems Commonly Serve Multiple Spaces

15 The Local Climate

16 What do you have?

17 Remember: Basic Thermodynamics Dew Point temperature is a representation of the actual moisture content of air (absolute humidity) Higher the dew point, more moisture is present Lower the dew point, less moisture is present

18 Local Climate

19 Local Climate

20 Local Climate

21 Local Climate

22 The Building Envelope

23 Class One and Two Building Envelope

24 Unheated Free-Standing Garage

25 Class Three and Four Building Envelope

26 Class Five Building Storage Area Envelopes

27 Class Six Building Storage Area Envelopes

28 What HVAC Systems Are Designed to Do

29 Spaces with Exterior Exposure

30 What HVAC Systems are Designed to Do Remove Perimeter Heat Gain

31 What HVAC Systems are Designed to Do Supplement Perimeter Heat Loss

32 What HVAC Systems are Designed to Do Remove Heat Gain from Interior Zones

33 Spaces with no Exterior Exposure

34 What HVAC Systems are Designed to Do Remove Heat Gain from Interior Zones

35 What HVAC Systems are Designed to Do Provide Ventilation

36 What HVAC Systems are Designed to Do Correct Humidity Gains or Losses

37 Basics of HVAC Systems

39 Boiler Hot Water or Steam Energy Input: Fuel

40 Forced Air Furnace with Cooling Energy Input: Fuel Fan Electricity Compressor Electricity Condenser Fan Elec.

41 Basic Components of Direct Expansion (DX) Refrigeration Systems

42 Window or Thru-the-Wall Air Conditioner Energy Input: Fan Electricity Compressor Electricity

43 Condensing Units

44 Basic Components of HVAC Systems Cooling Mode

45 Basic Components of HVAC Systems Heating Mode

46 Air Handling Unit (AHU) Components

47 Fans, Ducts, Dampers Air Handling Unit (AHU) Components

49 Filter(s) Air Handling Unit (AHU) Components

51 Heating Coils Air Handling Unit (AHU) Components

53 Humidifier Air Handling Unit (AHU) Components

55 Air Handling Unit (AHU) Cooling Coil/Dehumidifier Components

56 Fundamentals of Air Temperature, Relative Humidity and Absolute Humidity Dehumidification by sub-cooling and reheating

57 Cooling Coil Dehumidification

58 Sources of Cooling/Heating/ Humidification

59 Desiccant Dehumidification

60 Desiccant Dehumidification at AHU

62 Desiccant Dehumidification at AHU

64 Desiccant Dehumidification at Outside Air

65 Evaporative Cooling

66 Evaporative Cooling

67 Evaporative Cooling Uses latent heat of vaporization to cool and moisten outside air that is warm and dry Often energy efficient compared to standard air conditioning, practical choice for hot, arid climates However: No dehumidification in system Cooling can be reduced if moist outside air Humidification is a by-product cooling is the primary purpose

68 Terminal Devices Variable Air Volume Boxes Reheat Coils Perimeter Radiation

69 Controlling the System

70 How does it all work together? Set points drive the system operation Based on sensors in the space or in the AHU

73 Control signal can be digital or pneumatic to valves, fan controls, damper actuators etc. Most systems are controlled from either a single sensor or an average group for temperature and RH Other sensor points are reference to check system operation

75 Controls typically run: Operating schedule Set points OA intake Fan speed Coil valves Damper positions All the moving parts!

76 Working As A Team

78 What is the Goal? Improving communication between Collections and Facilities staff: Helps define preservation and energy/operation goals Facilitates optimization process

79 Collective Effort Requires participation of: Collections Administration Facilities Process not a project

81 Project Web Site Visit Information on upcoming webinars Recordings of past webinars Webinar and Workshop power point presentations

82 Reference Guidebook Project publication Has bibliography of relevant articles, guidelines and standards $25 available from

83 Upcoming Webinars May 1: Best Practices for Collecting and Analyzing Environmental Data June 5: Dealing with Summer Heat & Humidity July 10: Investigate Your HVAC System & Identify Potential Energy Savings Guest Speaker Peter Herzog, Herzog/Wheeler & Associates, Energy Management Consultant August 7: Practical Approaches to Environmental Control for Small Institutions Guest speaker Richard Kerschner, Director of Preservation and Conservation, Shelburne Museum, Shelburne, Vermont September 4: Sustainable Preservation Practices Webinars from Jan-April are available for viewing on ipisustainability.org

84 Post Webinar Survey Please take a moment to complete the postwebinar survey that will be to you.

85 Questions? Submit questions using the Question Box located in the Go To Webinar control panel

UNIVERSITY OF MISSOURI 23 0000 - Heating Ventilating and Air-Conditioning (HVAC) March 2015.01

UNIVERSITY OF MISSOURI 23 0000 - Heating Ventilating and Air-Conditioning (HVAC) March 2015.01 GENERAL: This section provides general standards for overall sizing and design of Heating, Ventilating, and Air Conditioning (HVAC) systems. Other sections contain specific standards for each system per