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KMID : 1024520140230081437
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Journal of the Environmental Sciences
2014 Volume.23 No. 8 p.1437 ~ p.1446
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Comparative of Energy-Saving by Green Roof Type on Urban Office Building
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Kim Jeong-Ho
Kwon Ki-Uk
Joo Chang-Hun
Yoon Yong-Han
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Abstract
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This study, the urban energy used office building green roof type composition of the target by analyze building
energy reductions. Green roof is total 6 types(type A~F) were selected, EnergyPlus the energy simulation programs
were used. Top floor of green roof types evaluation, the reduction of the cooling peak load type E(1.26%), type
D(1.30%), type C(1.37%), type B(1.45%), type F(1.49%), and heating peak load is type D(1.32%), type E(1.40%), type
C(1.47%), type F(1.69%), type B(2.13%) order. Annual cooling load of heating load is reduced more than about 1%
effect. The heating load reduction ratio for a maximum of 9% respectively. Cooling peak load of the building energy
performance evaluation of type F type B type C type D type E in the order and in the case of peak loads
heating type B type F type D type E type C order. Annual total energy use reduction of 1.07 to 1.22% and
earn, type B in the best good. In primary energy use reductions in the presence of a green roof were in the 4249~4876
kWh/yr. Annual CO2 emissions reductions of unapplied type A were analyzed on average 469.78 kg.
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KEYWORD
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Energy simulation, Green technology, Energy Plus, Thermal transmittance, Thermal conductivity
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