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Effect of Overhang Shade on the Solar Heat Gain through Window in Composite Climatic in Mid-Western India


Affiliations
1 School of Architecture and Design, Lovely Professional University, Jalandhar, Delhi G. T. Road, Phagwara 144 411, Punjab, India
2 Uttaranchal University, Arcadia Grant, Chandanwari, Prem Nagar, Dehradun 248 007, Uttarakhand, India
3 School of Chemical Engineering and Physical Sciences, Division of Research and Development, Lovely Professional University, Jalandhar, Delhi G.T. Road, Phagwara 144 411, Punjab, India
 

Solar heat gain (SHG) through fenestration (window) dominates towards cooling demands in buildings and eventually increases electricity consumption. Integration of fixed shading devices (i.e. overhang) can reduce the solar heat gain through and overall energy consumption. In this manuscript, solar heat gain factor (SHGF) has been assessed for different designs of overhang. ASHRAE method of fenestration design and heat balance has been used for the estimation of the SHGF and solar gain in the buildings of different designs of overhangs. Further, the SHGF and solar gain have been used to determine accurate heating and cooling loads. The values have been estimated for the peak winter and summer months of December and June for Indore city, India. Significant reduction in heating and cooling loads in the buildings having windows with overhangs has been estimated in winter and summer seasons. Integration of overhang lowers the energy demand by over 50% and 30% in rooms having windows in south and east/west walls respectively. The results of the this study would be extremely beneficial for designing the fixed type shading device in buildings in order to control the heating and cooling loads and in achieving the sustainable development goals (SDGs 11, 12 & 13).

Keywords

ASHRAE Standard, Energy-Efficient Building, Fenestration Shading, Sustainable Building Designs, Thermal Load.
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  • Effect of Overhang Shade on the Solar Heat Gain through Window in Composite Climatic in Mid-Western India

Abstract Views: 79  |  PDF Views: 65

Authors

Mahendra Joshi
School of Architecture and Design, Lovely Professional University, Jalandhar, Delhi G. T. Road, Phagwara 144 411, Punjab, India
D. Buddhi
Uttaranchal University, Arcadia Grant, Chandanwari, Prem Nagar, Dehradun 248 007, Uttarakhand, India
Ramkishore Singh
School of Chemical Engineering and Physical Sciences, Division of Research and Development, Lovely Professional University, Jalandhar, Delhi G.T. Road, Phagwara 144 411, Punjab, India

Abstract


Solar heat gain (SHG) through fenestration (window) dominates towards cooling demands in buildings and eventually increases electricity consumption. Integration of fixed shading devices (i.e. overhang) can reduce the solar heat gain through and overall energy consumption. In this manuscript, solar heat gain factor (SHGF) has been assessed for different designs of overhang. ASHRAE method of fenestration design and heat balance has been used for the estimation of the SHGF and solar gain in the buildings of different designs of overhangs. Further, the SHGF and solar gain have been used to determine accurate heating and cooling loads. The values have been estimated for the peak winter and summer months of December and June for Indore city, India. Significant reduction in heating and cooling loads in the buildings having windows with overhangs has been estimated in winter and summer seasons. Integration of overhang lowers the energy demand by over 50% and 30% in rooms having windows in south and east/west walls respectively. The results of the this study would be extremely beneficial for designing the fixed type shading device in buildings in order to control the heating and cooling loads and in achieving the sustainable development goals (SDGs 11, 12 & 13).

Keywords


ASHRAE Standard, Energy-Efficient Building, Fenestration Shading, Sustainable Building Designs, Thermal Load.

References