我國公寓大廈住宅建築節能改善評估

Evaluation on the Energy-Saving effect of Apartment Buildings in Taiwan

徐筱琪

《冷凍空調與能源科技雜誌》 88期 (2014/08) Pp. 37-46

摘要

本研究使用建築能耗分析模型（EnergyPlus Model）來模擬評估一實際公寓大廈建築之全年能耗，進行建築耗能特性及建築能耗強度（Energy Use Intensity, EUI）分析，並與台電提供之實際電費比較，進行模型輸入參數校準，再導入各項節能策略以評估住宅建築之節能效益。模擬結果顯示，選用高能效的空調機可以明顯降低空調耗電量，選用高能效的照明設備，也可降低照明耗能密度，進而降低照明耗電量。而設備插座用電比例佔住宅建築總用電量的50%以上，因此選用省能家電，並搭配不使用時即關閉電源的習慣，可以降低設備插座耗能密度，所得到的省電效果更加顯著。提高室內空調溫度設定，可明顯降低空調耗電量。當室內設定溫度由25°C提高為26°C時，空調耗電量可減少18%以上，當然室內空調溫度設定愈高，節電效果愈高，不過為了考量空調舒適度，空調溫度設定在26°C較佳。對住宅建築而言，建築外殼設計之改變（使用節能窗戶與遮陽）在白日可幫助隔絕日照輻射，但因住宅建築使用空調時間多集中於下午6點至隔日早上8點，對於空調耗電之節能效果因此較不顯著。

關鍵字

住宅建築 ； 節能 ； 建築能耗分析模型

並列摘要

This study used a whole building energy simulation program (EnergyPlus) to evaluate the annual energy consumption of one actual apartment building in Taiwan, and the characteristics of energy consumption and energy use intensity (EUI) were analyzed. The simulation results were also compared to the electric bill provided by Taipower to calibrate the input parameters of EnergyPlus model, and then import the energy saving policy to assess the energy efficiency of residential buildings. Simulation results show that using air conditioners with high efficiency (COP) can significantly reduce power consumption, and using energy-efficient lighting, can also reduce lighting power density (LPD) and reduce lighting power consumption. Equipment socket power consumption accounted for more than 50% of total electricity consumption in residential buildings, so using energy-saving appliances can reduce the equipment power density (EPD), and the resulting energy-saving effect is even more pronounced. Higher indoor air-conditioning temperature setting can also reduce air-conditioning electricity consumption. When the temperature setting is changed from 25°C to 26°C, the air-conditioning power consumption can be reduced by 18%. Of course, the higher the temperature setting is, the better the energy-saving effect. But considering the thermal comfort for the resident, the suggested air-conditioning temperature setting is 26°C. For residential buildings, the improvement of building envelope design (using energy-efficient windows and shading) can help cut off from sunlight radiation during the day, but due to the use of air conditioners in residential buildings mostly concentrated between 6 pm and 8 am the next day, the energy-saving effect for air conditioning therefore is less remarkable.

並列關鍵字

residential building ； energy-saving ； EnergyPlus