Influence of the shading nets on indoor thermal environment and air-conditioning energy consumption in lightweight buildings
ENERGY REPORTS(2024)
摘要
Lightweight envelopes are increasingly utilized in temporary relief and shelter buildings, due to their costeffectiveness and efficient construction process. However, these envelopes often result in inadequate indoor thermal conditions during the summer months, which can negatively impact the physical and psychological wellbeing of occupants, particularly victims and patients in disaster or epidemic situations. Addressing this challenge necessitates the use of simple yet effective materials and technologies to improve indoor thermal environments even with limited resources. This study explores the potential of shading nets to enhance indoor thermal conditions in lightweight buildings by mitigating solar radiation gain during the summer period. A comparative experiment was conducted on two lightweight buildings, one of which was equipped with standard six-needle black shading nets, to assess the impact of shading nets on the indoor thermal environment and airconditioning energy consumption. The findings reveal that shading nets can reduce solar radiation intensity by approximately 57.86 %, resulting in a significant decrease in peak indoor air temperatures by 2.3 degrees C to 3.4 degrees C under natural ventilation and a reduction in air-conditioning energy consumption by up to 23 % under airconditioned conditions. These findings demonstrate that shading nets are effective in improving indoor comfort and reducing energy usage, providing a practical solution for enhancing living conditions in lightweight structures during hot weather.
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关键词
Shading nets,Lightweight envelopes,Indoor thermal environment,Energy efficiency
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