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(A) PHOTOVOLTAIC SOLAR PANELS



Solar cell is made from amorphous silicon

Estimation of Energy supply produced by PV System

8sqm =1 KW peak
1160 = total roof area covered by PV Panels
Uni-Solar System = 10% increased
145kw x (10%) = 159.5 KWpeak

UNI-SOLAR 17W FIELD PV ROOFING SHINGLES


Features
  • Uni-solar shingles are unique and have been honoured with the prestigious Popular Science Award, "Best of What's New"
  • PV Shingle permits the roof of the commercial building or residential homes to evolve beyond mere protection from the weather but also act as a source of electric power
  • No support structure needed
  • Virtually unbreakable (no glass)
  • Shadow and high-heat tolerant

Applications
  • Grid-Connected Metal Roof Shade & Parking Structures
  • Grid-Connected Agricultural Metal Roof Structures
  • Residential Grid Connected Systems
  • Schools Municipalities & Insitutions
  • Renovation or New Construction




 



Each PV element utilizes triple-junction thin film solar cells made from amorphous silicon. In each cell the blue green and red light of the sun is absorbed in different layers of the cell yielding unprecedented performance. This light spectrum splitting capability is the key to higher efficiency especially at lower insulation level and under diffused light conditions.



Cooling Primary Energy Reduction

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(B) PHOTOVOLTAIC SOLAR PANELS







Energy Balance (Standard Apartment)  
Reference Cases Values  
Average Cooling Energy Consumption 220
Service Hot Water (electric boiler) 120
Lighting + Appliances 25
Total: 365
Project performance  
Energy saving contributions: 20
High effciency equipments (cooling & lighting) 72
Bioclimatic-passive cooling strategies 20
Primary energy saving PV contribution 252.7
Total Energy Consumption Index kWh/mg year -112

kWh/mg Year -112
kWh/mg Year -112

(C) UNITS CROSS VENTILATION



Energy Simulation Results

Reference Case
Monthly Heating/Cooling Loads
Zone: Zone 2
Operation: Weekdays 00-24, Weekends 00-24.
Thermostat Settings: 18.0 - 26.0 c

Max Heating: 0.0 C - No Heating
Max Cooling: 4014 at 15:00 on 28th June

  COOLING
MONTH (Wh)
January 586195
February 618752
March 919864
April 1079780
May 1174174
June 924743
July 827384
August 696630
September 720158
October 712726
November 720833
December 566824
TOTAL 954806

kWh/mg Year 224.4

 



 

Real Case Simulation - Standard Apartment
Monthly Heating/Cooling Loads
Zone: AptCalcolo
Operation: Weekdays 00-24, Weekends 00-24.
Thermostat Settings: 18.0 - 26.0 c

Max Heating: 0.0 C - No Heating
Max Cooling: 2975 at 15:00 on 28th June

  COOLING
MONTH (Wh)
January 586195
February 618752
March 919864
April 1079780
May 1174174
June 924743
July 827384
August 696630
September 720158
October 712726
November 720833
December 566824
TOTAL 954806

kWh/mg Year 121.1
kWh/mg Year 32%


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Cooling System


Outdoor natural warm air fluxes
External Air Inlet
Underground Air-Path for air cooling
Apartments cross ventilation
Roof level hot air expulsion


Shadow Cooling System + Photovoltaic System


Natural warm air fluxes
Shaded facades for air cooling
Apartments cross ventilation
Hot air expulsion
Roof shadowing solar panels

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(D) SHADOW REDUCTION SYSTEM



 



During the hottest hours of the day the sun's radiations don't hit the window surfaces directly. The Shelters, which surround the entire facade of the building, protect the window surfaces producing shadows on them. Thus the internal unit temperature decreases.

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