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Solar cooling installation UWC & Desert Mountain Highschool, AZSolar cooling installation UWC & Desert Mountain Highschool, AZ
Inga Doemland, S.O.L.I.D. Asia Energy Services Pte Ltd. (Singapore)
Christian Holter
Inga Doemland, S.O.L.I.D. Asia Energy Services Pte Ltd. (Singapore)
Christian Holter
9/29/2014 1
Solar Cooling & Hot Water
for School Campus
Solar Panels:
3900 m² / 2.73 MW
LiBr absorption chiller:
1470 kW
Operation started: 2011
ESCo- System
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ContentsContents
• Performance of the solar cooling plant in 2013
• Singapore weather 2013
• TRNSYS simulation vs. reality in 2013
• System improvements based on simulation– Variable speed drives cooling water circuit
– Additional collector area – various orientations
• Performance of the solar cooling plant in 2013
• Singapore weather 2013
• TRNSYS simulation vs. reality in 2013
• System improvements based on simulation– Variable speed drives cooling water circuit
– Additional collector area – various orientations
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UWC Tampines, SingaporeUWC Tampines, Singapore
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PERFORMANCE OF THE SOLAR
COOLING PLANT IN 2013
PERFORMANCE OF THE SOLAR
COOLING PLANT IN 2013
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Solar heat input to the cooling and domestic hot water systemSolar heat input to the cooling and domestic hot water system
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Electricity consumptionElectricity consumption
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Deviation from reality Deviation from reality
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Qsolar Qhw Qchw QDHW Pel SPFel
Operation
hours
2013
real
1566
MWh
1406
MWh
949
MWh
143
MWh
151
MWh6.3 2046 h/a
Base -7.3% -4.8% -2.8% 1.4% -3.8% 6.5 2020 h/a
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SYSTEM IMPROVEMENTS BASED
ON SIMULATION
SYSTEM IMPROVEMENTS BASED
ON SIMULATION
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Electricity savings due to cooling water circuit improvementsElectricity savings due to cooling water circuit improvements
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Increase of cooling generation due to additional collector areaIncrease of cooling generation due to additional collector area
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Change of the SPF due to additional collector areaChange of the SPF due to additional collector area
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Desert Mountain High School, USADesert Mountain High School, USADesert Mountain High School, USADesert Mountain High School, USA
Solar Panels: 5,000 m² � 3.5 MW
Cooling load: 500 tons /1750 kW
In operation since 2014
Desert Mountain High School, USADesert Mountain High School, USADesert Mountain High School, USADesert Mountain High School, USA
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Desert Mountain High School, USADesert Mountain High School, USADesert Mountain High School, USADesert Mountain High School, USA
Desert Mountain High School, USADesert Mountain High School, USADesert Mountain High School, USADesert Mountain High School, USA
29.09.2014
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Desert Mountain High School, USADesert Mountain High School, USADesert Mountain High School, USADesert Mountain High School, USA
Desert Mountain High School, USADesert Mountain High School, USADesert Mountain High School, USADesert Mountain High School, USA
29.09.2014
11
Desert Mountain High School, USADesert Mountain High School, USADesert Mountain High School, USADesert Mountain High School, USA
Desert Mountain High School, USADesert Mountain High School, USADesert Mountain High School, USADesert Mountain High School, USA
29.09.2014
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Desert Mountain High School, USADesert Mountain High School, USADesert Mountain High School, USADesert Mountain High School, USA
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