26/10 2015 Nordic Built Active Roofs and Facades ELLEBO RENOVATION CONCEPT & ACTIVE HOUSE EVALUATION ENVIRON MENT ENERGY
WINTERGARDEN vs. SUMMERGARDEN COMFORT CONCEPT 26/10 2015 WINTER GARDEN FACADE 12 C 21 C SOMMER GARDEN FACADE 21 C 5 C Living area 18m² Living area 28m² 26 C 27 C 26 C 26 C 25.8 C
WINTERGARDEN vs. SUMMERGARDEN DESIGNPRINCIP 26/10 2015 GLAZING PRINCIP: (U) U value (G) g value (Ts) solar transmittance U (1.3) G (0.5) Ts (0.7) U (0.9) G (0.5) Ts (0.7) U (0.9) G (0.7) Ts (0.8) U (2.0) G (0.4) Ts (0.6) U (0.9) G (0.5) Ts (0.7) 20% openable 20% openable 100% opened 20% openable 20% openable 20% openable 20% openable 100% opened WINTERGARDEN SUMMERGARDEN
ACTIVE HOUSE EVALUATION HOW TO APPROACH A SCORING RADAR Good Better Best COMFORT 4 3 2 1 4 3 2 1 4 3 2 1 ENVIRON- MENT ENERGY The level of ambition how active the building has become can be quantified into four levels, where 1 is the highest level and 4 is the lowest.
ELLEBO OVERSIGT Blok 1 Blok 2
0.8 3.1 14.5 11.4 12.2 ELLEBO OVERSIGT Case South [Blok 1] Case West [Blok 2] 1.2 (1.6m højt, 0.8m skarmen) 7.4 7.4 0.8 14.5 7.4 1.3 1.2 7.4 1.3 (2.55m højt, 0.0m skarmen) 3.1 11.4 12.2
ELLEBO FORUDSÆTNINGERNE FOR BEREGNINGEN HEATING Setpoint 21.1 C 1. Jan. 15. Maj 15. Sep. ON OFF ON 31. Dec. MECHANICAL VENTILATION Heat recovery 90% Setpoint 1000ppm Additional exhaust in kitchen and toilet inside Tdr (0.9*Tdr) + (0.1*To) 0.2 ACH To outside INTERNAL GAINS Living room: Occupancy 7 W/m2 Lighting 12W/m2 Equipment 10 W/m2 0,6 0,5 0,4 0,3 0,2 0,1 0 Occupancy intensity schedule, every day 00:00 08:00 08:00 09:00 09:00 16:00 16:00 22:00 22:00 00:00 Klokkeslæt
ACTIVE HOUSE EVALUATION of ELLEBO RENOVATION TABLE OF CONTENT ENVIRON- MENT COMFORT ENERGY - OVERALL results - COMFORT results + argumentation - ENERGY results + argumentation - CONCLUSIONS
OVERALL RESULTS FOR ELLEBO RENOVATION ENVIRO- NMENT COMFORT ENERGY Case South [Blok 1] Case West [Blok 2] 1.2 Thermal Environment 1.2 1.1 Daylight 1.3 Indoor air quality 1 1.1 1.3 1 2 2 3 3 3.3 Sustainable construction 4 2.1 Energy demand 3.3 4 2.1 3.2 Freshwater consumption 2.2 Energy supply 3.2 2.2 3.1 Environmental loads 2.3 Primary energy performance 3.1 2.3 WINTER GARDEN FACADE SOMMER GARDEN FACADE Environmental criteria / not performed
COMFORT RADAR SUBCATEGORIES ENVIRO- NMENT COMFORT ENERGY Case South [Blok 1] Case West [Blok 2] 1.1.2 Direct sunlight availibility 1.1.2 1.1.1 Daylight factor 4 3 2 1 1.2.1 Maximum oper. temperature 1.1.1 4 3 2 1 1.2.1 1.3.1 Standard fresh air supply 1.2.2 Minimum oper. temperature 1.3.1 1.2.2 WINTER GARDEN FACADE SOMMER GARDEN FACADE
COMFORT 1.1.1 DAYLIGHT FACTOR Wintergarden Living room Summergarden 2,5% 3,2% Case South [Blok 1] & Case West [Blok 2] WINTER GARDEN FACADE SOMMER GARDEN FACADE * Daylight factor is non-orientation specific, by definition. ** Design day based upon the Standard CIE overcast Sky for 21 September at 12:00pm. *** Daylight factor simulations performed in VELUX Daylight Visualizer 2. ACTIVE HUS SCORE WINTER GARDEN FACADE SOMMER GARDEN FACADE DAYLIGHT FACTOR * SCORE 3 SCORE 2 The amount of daylight in both gardens is very high (aver. DF > 8%). However, summergarden provides more uniform daylight distribution in the living room, especially in winter.
COMFORT 1.1.2 DIRECT SUNLIGHT Case South [Blok 1] Sunlight provision in the living room should be as high as possible between autumn and spring eqinox. More than 10% of probable sunlight hours ensure excellent sunlight and view conditions in a room. 1564h = 100% available sunlight hours * From 23. sept. until 21. mar. 650h = 41% Case West [Blok 2] 350h = 22% SOMMER/WINTER-GARDEN FACADE * Sunlight provision results obtained in IES-VE software. Results show that more than 10% of all available sunlight hours can be reached in garden extensions of the living room in both blocks. However, it is important to note that only the summer garden becomes a continuous part of the living area in winter.
COMFORT 1.2 THERMAL COMFORT SUMMER Wintergarden Summergarden Living room 28 C 26 C FACADE WITH WINTERGARDEN FACADE WITH SUMMERGARDEN
COMFORT 1.2 THERMAL COMFORT 1.2.1 Maximum operative temperature Comfort temperature limits (less than 100h above 26⁰C and less than 25h above 27⁰C) are kept in range for both summergarden and wintergarden design. SOMMER GARDEN 1. LIVING ROOM 2. EXTENSION WINTER GARDEN 1. LIVING ROOM 2. EXTENSION Tin => 26C 6h 57h 7h 98h Case South [Blok 1] Case West [Blok 2] Tin => 27C 2h 32h 1h 55h Tin => 26C 12h 51h 17h 85h Tin => 27C 3h 26h 3h 44h 1.2.2 Minimum operative temperature Thermal comfort in winter is very good for both sommergarden and wintergarden design. However, thanks to high performance triple glazing in sommergarden facade, the top score of 1 is reached, while winter garden facade provide thermal comfort of score 2. ACTIVE HUS SCORE WINTER GARDEN FACADE SOMMER GARDEN FACADE WINTER GARDEN FACADE SOMMER GARDEN FACADE Maximum operative temperature Minimum operative temperature SCORE 1 SCORE 2 SCORE 1 SCORE 2 SCORE 1 SCORE 2 SCORE 1 SCORE 1 * Thermal comfort simulation performed in IES-VE software.
Solvarme gevindst [kw] Temperatur [C] COMFORT 1.2 THERMAL COMFORT 10.JUNI / LIVING ROOM / 1.SAL Case South [Blok 1] Case West [Blok 2] 35 Winterhave 3,0 35 Winterhave 3,0 30 25 20 Overheating Treshold 2,5 2,0 1,5 1,0 30 25 20 Overheating Treshold 2,5 2,0 1,5 1,0 15 0,5 15 0,5 10 0,0 10 0,0 35 Sommerhave 3,0 35 Sommerhave 3,0 30 25 20 Overheating Treshold 2,5 2,0 1,5 1,0 30 25 20 Overheating Treshold 2,5 2,0 1,5 1,0 15 0,5 15 0,5 10 0,0 10 0,0 Klokkesæt Living room Dry bulb ( C) To CPH ( C) Sommerhave Dry bulb ( C) Living room Solar gain (kw) Sommerhave Solar gain (kw)
Solvarme gevindst [kw] Temperatur [C] COMFORT 1.2 THERMAL COMFORT 16.MAJ / LIVING ROOM / 1.SAL 24 Case South [Blok 1] Case West [Blok 2] Winterhave 3,0 24 Winterhave 3,0 20 2,5 20 2,5 16 12 2,0 1,5 1,0 16 12 2,0 1,5 1,0 8 4 Closed winter garden 0,5 0,0 8 4 0,5 0,0 24 Sommerhave 3,0 24 Sommerhave 3,0 20 2,5 20 2,5 16 12 2,0 1,5 1,0 16 12 2,0 1,5 1,0 8 4 Open sommer garden 0,5 0,0 8 4 0,5 0,0 Klokkesæt Living room Dry bulb ( C) To CPH ( C) Sommerhave Dry bulb ( C) Living room Solar gain (kw) Sommerhave Solar gain (kw)
Solvarme gevindst [kw] Temperatur [C] COMFORT 1.2 THERMAL COMFORT 9.JAN / LIVING ROOM / 1.SAL Case South [Blok 1] Case West [Blok 2] 25 Winterhave 0,07 25 Winterhave 0,07 20 15 0,06 0,05 0,04 20 15 0,06 0,05 0,04 10 5 0,03 0,02 0,01 10 5 0,03 0,02 0,01 0 0,00 0 0,00 25 Sommerhave 0,07 25 Sommerhave 0,07 20 15 0,06 0,05 0,04 20 15 0,06 0,05 0,04 10 5 0,03 0,02 0,01 10 5 0,03 0,02 0,01 0 0,00 0 0,00 Kokkeslæt Living room Dry bulb ( C) To CPH ( C) Sommerhave Dry bulb ( C) Living room Solar gain (kw) Sommerhave Solar gain (kw)
COMFORT 1.3.1 FRESH AIR SUPPLY In winter, appartments are ventilated with CO2 controlled mechanical ventilation with heat recovery. In the apartment with winter garden, living area is reduced by 30% in winter. Thus, higher CO2 niveau is observed when the room is occupied, windows are closed and mechanical ventilation is on. However as an average, both cases reaches very good results in fresh air supply. Case South [Blok 1] Case West [Blok 2] ACTIVE HUS SCORE WINTER GARDEN FACADE SOMMER GARDEN FACADE WINTER GARDEN FACADE SOMMER GARDEN FACADE FRESH AIR SUPPLY SUMMER SCORE 1 SCORE 1 SCORE 1 SCORE 1 FRESH AIR SUPPLY WINTER SCORE 2 SCORE 2 SCORE 3 SCORE 2
ENERGY RADAR SUBCATEGORIES 2.1 Energy demand 1 2 3 COMFORT 4 ENVIRON- MENT ENERGY WINTER GARDEN FACADE SOMMER GARDEN FACADE 2.3 Primary energy performance (Scoren afhænger af hvor stort et solcelleareal, der besluttes at installere) 2.2 Energy supply (Scoren afhænger af hvor stort et solcelleareal, der besluttes at installere) Results are calculated according to Danish Building Regulations for Energy Frame 2015
VINTERHAVE SOMMERHAVE 2.1 ENERGY DEMAND 31,6 Energy use savings 10,4 % 28,3 Både vinterhaven og sommerhaven overholder lavenergirammen for 2015 Case West [Blok2] EL: 3,8 Heat: 13,1 Water: 14,7 Case West [Blok 2] EL: 3,8 Heat: 9,8 Water: 14,7 Energy demand kwh/ m2, yr District heating; hot water District heating; Room heating Electricity
VINTERHAVE SOMMERHAVE 2.1 ENERGY DEMAND 29,8 Energy use savings 8,7 % 27,2 Både vinterhaven og sommerhaven overholder lavenergirammen for 2015 Case South [Blok1] EL: 3,9 Heat: 11,2 Water: 14,7 Case South [Blok 1] EL: 3,9 Heat: 8,6 Water: 14,7 District heating; hot water District heating; Room heating Electricity Energy demand kwh/ m2, yr
MWh MWh 2.1 ENERGY DEMAND HEATING DEMAND/Case West [Blok 2] Rumopvarmning, Varmebehov Der er ikke overtemperatur i hverken vinterhaven eller sommerhaven, hvilket skyldes lejlighedens placering, der er øst/vest vendt 0,3 0,25 0,2 0,15 0,1 0,05 0 Jan Feb Mar Apr Maj Jun Jul Aug Sep Okt Nov Dec SOLAR GAINS/Case West [Blok 2] Solindfald Vinterhaven Sommerhaven 0,4 0,35 + Reducering i det totale rumopvarmningsbehov -> En højere g-værdi -> En højere u-værdi i det yderste vindue -> En lavere u-værdi i det inderste vindue 0,3 0,25 0,2 0,15 0,1 0,05 0 Jan Feb Mar Apr Maj Jun Jul Aug Sep Okt Nov Dec Vinterhaven Sommerhaven
2.2 ENERGY SUPPLY Implementering af solceller i bebyggelsen Projektets to partner Gaia Solar og Solarplan kom på Nordic Built projektets opstartsmøde juni 2014 med hver et oplæg til, hvorledes at der kunne implementeres solcelle i og på bebyggelsen Ellebo. HVAD SKAL DER TIL Der er taget udgangspunkt i den case situation med det højeste energiforbrug som i dette tilfælde er vinterhaven orienteret mod vest. Energiramme Byggeri 2020 kan opnås ved at installere 0,3 kwp (2,3 m 2 ) pr. lejlighed -> Active House Score: 4 (svarende til 11% af det samlede energiforbrug bliver dækket af vedvarende energi) Ved en installation med 5 kwp (35,8 m 2 ) solceller pr. lejlighed vil det være muligt at blive CO2 neutral (varm + drift + husholdningsel) -> Active House Score: 1 Ved en installation med 0,4 kwp (2,5 m 2 ) solceller pr. lejlighed vil det være muligt at blive CO2 neutral (drift) -> Active House Score: 4 (svarende til 12% af det samlede energiforbrug bliver dækket af vedvarende energi)
ACTIVE HOUSE EVALUATION of ELLEBO RENOVATION CONCLUSIONS FACADE WITH SUMMER GARDEN NO OVERHEATING BALANCED ENERGI DEMAND & SPACE USE SUFFICIENT NATURAL LIGHT SIMPLE & MANUALLY CONTROLLED SYSTEM