本研究以台灣為數最密集的商業建築便利商店為對象,統計1316家便利商店全年平均用電度數為16.7萬度電,以平均電價3.5[元/kWh]計算,便利商店單店年平均電費為58萬,若以全台灣共9465家便利商店計算,全台灣便利商店一年共消耗16億度電。研究針對便利商店的基本用電設備做數量及瓦數的統計,透過資料調查四大建築型態平房、沿街店鋪、單邊騎樓、雙邊騎樓,將其大門方位分為八個方位、開窗面數分為一面開窗、兩面開窗及三面開窗以及來客數、全年累積用電度數、平均單位面積用電量(EUI,Energy Use Intensity)作為統計分析之基本資料,探討便利商店建築型態對於便利商店之耗能原因,平房類型便利商店雖然平均單位面積用電量僅有1368 [kWh/(m2.yr)],但年平均用電卻高達175,476度電,是便利商店所有型態中最高。4種不同建築型態之便利商店,全年累積用電度數年均用電最高之平房相較於最低之單邊騎樓僅增加8%的耗電量,而3面開窗之便利商店相較於單面開窗沿街店鋪型的便利商店在全年累積用電平均值上只增加2%的耗電量,便利商店建築型態與開窗數量影響對於整體耗能影響並不大。推估公式針對6家門市進行全年設備耗能監測所得出之數據作為設備公式耗能之依據,本研究設定之耗能推估公式,經由2家門市針對公式進行驗證,門市實際用電與推估公式計算之結果,兩者相差5%~7%之用電量。本研究所設定之推估公式以較為簡便且適用新設及舊有門市使用現況,於短時間內評估及了解門市整體之耗能狀況,實現落實便利商店門市節能之成效。
This study investigated the power consumption of convenience stores in Taiwan. Convenience stores are the most densely structured commercial buildings in Taiwan. This study sampled 1316 convenience stores. The annual average power consumption of the 1,316 convenience stores was 167,000 [kWh] per store. On the basis of an average power rate of 3.5 [NTD/kWh], the annual average power expense per store is 580,000 NTD. As there are 9,465 convenience stores in Taiwan, the annual power consumption of all convenient stores will be 1.6 billion [kWh]. This study conducted a statistical analysis of the quantity and wattage of the power-consuming equipments in convenience stores. Architectural forms were divided into four types, namely, one-storey houses, street stores, one-sided arcades and double-sided arcades. The number of sides with windows included one side, two sides, and three sides. There were eight door directions. The number of customers was also a variable. The annual accumulated wattage and EUI(EUI,Energy Use Intensity) were used as basic information of the statistical analysis to discuss the impact of the architectural forms of the convenience stores on energy consumption. The annual power consumption per unit area for one-story convenience stores was 1,368 [kWh/m2]. However, the average power consumption was up to 175,476 [kWh], which was the highest among the four architectural forms of convenience stores. The maximum average annual accumulated power consumption of one-story houses increased by 8% as compared to the minimum annual average power consumption of one-sided arcades. The average annual accumulated power consumption of convenience stores with windows on three sides increased by 2% as compared to the average annual accumulated power consumption of the street stores. Thus, architectural forms and number of open windows had a minor impact on the total power consumption. For the estimated formula, the data obtained from the annual energy consumption monitoring of equipment in the six stores are used as the basis for the equipment. The proposed estimated energy consumption formula was verified using two convenience stores. The difference between the actual power consumption and result of the estimated formula was 5%~7%. The proposed formula was simple and could be applied to new and old convenience stores. It could evaluate and determine the energy consumption of convenience stores in a short time, so as to achieve the energy efficiency of convenience stores.
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