| Summary: | 碩士 === 國立臺北科技大學 === 能源與冷凍空調工程系碩士班 === 96 === According to the Taiwan Green Productivity Foundation was entrusted to investigate the energy saving of retail stores which are in the lives and business department by Bureau of Energy, it discovered that the air exfiltration escaping through the door of retail stores is over 40% in whole retail stores in Taiwan. Therefore, it is worth to discuss how to prevent the air exfiltration effectively and estimate the energy-saving potential. The objective of this study is discussing that prevent the air exfiltration by using the different way of protection and estimating the energy-saving potential by using the theory analysis which is combined with the consume energy simulation software of building, POWER DOE-2. There are two type of protection: non- protective type (still-open type and always-open type) and protective type (using the air curtain and automatic door). It is found that always-open type improved to install the air curtain or automatic door: the energy-consumed can reduce 74.0 – 96.8 %, the ratio of the air exfiltration to the cooling load from 61.0 % reduces to 27 – 4.3 %, the costs of the power rate can reduce 13 – 26 %, the payback period is 3.6 – 5.2 years, the quantity of carbon dioxide emission can reduce 13 – 26 %. Obviously retail stores install the air curtain or automatic door, not only can reduce the energy-loss and the costs of cooling load, but also decrease the emission of carbon dioxide. It complies with the government which advocates the policy of energy saving and the emission of carbon dioxide reduced.
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