Study on Variation of Internal Heat Gain in Office Buildings by Chronology
Study on Variation of Internal Heat Gain in Office Buildings by Chronology
复制标题
办公建筑内部得热量随时间变化的研究
作者：
Hyemi Kim;Kyung;H. Kim;Young
近年来，韩国普遍省略了暖通空调(HVAC)设备改造过程中负荷计算的附加过程。取而代之的是，基于现有的暖通空调容量，使用了简单的暖通空调设备更换，考虑到内部热增量的变化，这是有限的，因为近年来由于照明和办公自动化(OA)设备的消耗功率发生了变化。因此，这项研究旨在确定从1985年到2015年间30年来内部热收益的变化，研究调查了基于实际测量的学术论文和目录，涉及办公自动化设备、照明和每单位面积的居住者数量。与1980年相比，2015年办公自动化设备产生的热负荷增加了约49.6%，照明设备产生的热负荷比以荧光为基础的照明减少了47%，来自人体的热负荷平均约为10W/m2，这在过去30年中变化很小。30,000平方米的总建筑面积计算的内部热增量在过去30年里一直在不断增加。请注意，内部热增量设计过度，因为文献中使用的值比2000年前设计的情况下通常使用的值大约小17%到50%，而2000年后使用的值大约比设计标准值小35%到50%。
The additional process of load calculation during the retrofit of heating, ventilation, and air conditioning (HVAC) equipment has been generally omitted in Korea, in recent years. Instead, a simple replacement of HVAC equipment, based on existing HVAC capacities, has been used, which is limited when taking the variation of internal heat gain into consideration, due to changes in the consumption power due to light and office automation (OA) equipment in recent years. Thus, this study aimed to identify a change in internal heat gains over 30 years, from 1985 to 2015, study investigated actual measurement-based academic papers and catalogs about OA equipment, lighting, and the number of occupants per unit area. The heat load produced from OA equipment has increased by approximately 49.6% in 2015 compared to that of 1980, and the heat load from lighting equipment has decreased by 47% compared to that of fluorescent-based lighting, and the heat load from human bodies was approximately 10 W/m2 on average, which showed a minimal change over the past 30 years. The internal heat gain calculated for 30,000 m2 of total floor area has increased constantly for the last 30 years. Note that the internal heat gains were designed excessively, as the values used in literature was approximately 17% to 50% smaller than the value used normally in the case of pre-2000 designs, and the values used after 2000 were approximately 35% to 50% smaller than the design standard value.