The Impact of Cool Roofs on Energy Consumption of Office Buildings in Chongqing of China
Cool roofs are characterized by high solar reflectance (SR) and high infrared emittance (E). When cool roofs are exposed to solar radiation, it will have a lower surface temperature compared to a similar surface with lower SR and E values, and this would result in decreasing the heat penetration int...
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| Veröffentlicht in: | The open construction & building technology journal 2015, Vol.9 (1), p.142-146 |
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| container_title | The open construction & building technology journal |
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| creator | Gao, Ya-feng Zhao, Kai Su, Bin Wang, Zhi-qiang Tang, Xiao-min |
| description | Cool roofs are characterized by high solar reflectance (SR) and high infrared emittance (E). When cool roofs
are exposed to solar radiation, it will have a lower surface temperature compared to a similar surface with lower SR and E
values, and this would result in decreasing the heat penetration into the building. Cool roofs offer significant cooling energy
saving in buildings with air conditioning. In order to quantify the influence of cool roofs on the energy consumption
of office buildings in Chongqing, the authors tested the electricity consumptions of air conditioners in two rooms on the
top floor of an office building. One of the rooms was with cooling roof installed. The result shows that in summer, the
room with cooling roof saved electricity 0.049kWh per square meter per day. However in winter, it increased electricity
consumption by 0.012kWh per square meter per day. |
| doi_str_mv | 10.2174/1874836801509010142 |
| format | Article |
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are exposed to solar radiation, it will have a lower surface temperature compared to a similar surface with lower SR and E
values, and this would result in decreasing the heat penetration into the building. Cool roofs offer significant cooling energy
saving in buildings with air conditioning. In order to quantify the influence of cool roofs on the energy consumption
of office buildings in Chongqing, the authors tested the electricity consumptions of air conditioners in two rooms on the
top floor of an office building. One of the rooms was with cooling roof installed. The result shows that in summer, the
room with cooling roof saved electricity 0.049kWh per square meter per day. However in winter, it increased electricity
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are exposed to solar radiation, it will have a lower surface temperature compared to a similar surface with lower SR and E
values, and this would result in decreasing the heat penetration into the building. Cool roofs offer significant cooling energy
saving in buildings with air conditioning. In order to quantify the influence of cool roofs on the energy consumption
of office buildings in Chongqing, the authors tested the electricity consumptions of air conditioners in two rooms on the
top floor of an office building. One of the rooms was with cooling roof installed. The result shows that in summer, the
room with cooling roof saved electricity 0.049kWh per square meter per day. However in winter, it increased electricity
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are exposed to solar radiation, it will have a lower surface temperature compared to a similar surface with lower SR and E
values, and this would result in decreasing the heat penetration into the building. Cool roofs offer significant cooling energy
saving in buildings with air conditioning. In order to quantify the influence of cool roofs on the energy consumption
of office buildings in Chongqing, the authors tested the electricity consumptions of air conditioners in two rooms on the
top floor of an office building. One of the rooms was with cooling roof installed. The result shows that in summer, the
room with cooling roof saved electricity 0.049kWh per square meter per day. However in winter, it increased electricity
consumption by 0.012kWh per square meter per day.</abstract><doi>10.2174/1874836801509010142</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| title | The Impact of Cool Roofs on Energy Consumption of Office Buildings in Chongqing of China |
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