Abstract
Buildings account for significant proportion of the world primary energy consumption and it is expected to continuously increase due to the climate changes. Buildings also have high impacts on the environment of urban area in many ways. Rapid increase in electricity demand, rise of atmospheric temperature, emission of greenhouse gases, global warming, urban heat island effect, and the creation of microclimates are among the most prominent impacts. A significant percentage of the energy consumed in buildings is used to improve the indoor thermal comfort. It is hypothesised that (in naturally ventilated buildings) the indoor thermal comfort can be improved during day time by reducing the heat gain into buildings. This study investigates the effectiveness of using MagorTherm insulation material (for roof and walls) to improve indoor thermal comfort for naturally ventilated residential buildings in Singapore. The MagorTherm insulation material basically enhances the conduction resistance of roof and walls in order to achieve heat gain reduction. This study investigated the effectiveness of adding MagorTherm insulation material over original reinforced concrete roof/walls of naturally ventilated residential building (Hall of residence-4) in tropical climate of Singapore. It was observed from the experimental measurements and computational simulations that adding MagorTherm insulation material over original reinforced concrete roof/walls could reduce.
•Peak-time ceiling surface temperature by up to 8oC,
•Peak-time east wall inside surface temperature by up to 5oC,
•Peak-time indoor air temperature by up to 4.6oC,
•Annual heat gain by up to 68%, and
•Annual net heat gain by up to 39%.
•Peak-time ceiling surface temperature by up to 8oC,
•Peak-time east wall inside surface temperature by up to 5oC,
•Peak-time indoor air temperature by up to 4.6oC,
•Annual heat gain by up to 68%, and
•Annual net heat gain by up to 39%.
Original language | English |
---|---|
Place of Publication | Nanyang |
Publisher | Nanyang Technological University |
Number of pages | 23 |
Publication status | Published - Apr 2018 |
Externally published | Yes |