The proper use of external shading device optimizes the thermal load and reduces the heat gain in the building as shown in the simulation analysis in figure 1 & 2 with and with out external shading device. The following data was considered for simulation.
The following peak heat reduction and saving achived between 9 am to 17 pm durining May to September months.The results shows, the maximum heat gain reduction was in August.
May | 1803 – 458 = 345kj (326.99 Btus) | Reduction in heat gain at peak |
June | 1996 – 1440 = 556kj ( 526.98 Btus) | Reduction in heat gain at peak |
July | 2546 – 1809 = 737kj ( 698.54 Btus) | Reduction in heat gain at peak |
August | 3291 – 2524 = 767kj ( 726.97 Btus) | Reduction in heat gain at peak |
September | 869 – 686 = 183kj ( 173.45 Btus) | Reduction in heat gain at peak |
1 kj=0.947817 Btu
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