围护结构冷负荷快速计算方法研究  

Research on Cooling Load Fast Calculation of Building Envelopes

作　　者：龚光彩[1] 尹丹 吴蓉 王平[1] 傅沐书 龚思越[1] GONG Guang-cai;YIN Dan;WU Rong;WANG Ping;FU Mu-shu;GONG Si-yue(College of Civil Engineering,Hunan Universit)

机构地区：[1]湖南大学土木工程学院

出　　处：《建筑热能通风空调》2018年第9期1-6,10,共7页Building Energy & Environment

基　　金：国家科技支撑计划课题(2015BAJ03B00)

摘　　要：本文提出了一种围护结构冷负荷快速计算方法,即以冷负荷系数法为基础,将建筑外围护结构视为一个整体,通过计算冷负荷修正系数而得到围护结构冷负荷。文中定义冷负荷修正系数为围护结构冷负荷与外围护结构冷负荷之比,同时还提出了冷负荷修正系数的计算方法。在计算建筑围护结构部分冷负荷时,只需用建筑外围护结构部分冷负荷乘以冷负荷修正系数即可,不用特殊计算内围护结构部分的冷负荷。根据围护结构冷负荷快速计算这一方法,以Access和VBA为工具编程,制作了一个冷负荷快速计算软件。该软件省去了普通软件逐个房间计算冷负荷的复杂性,同时也避免了用冷负荷指标估算时的误差。最后依次采用冷负荷快速计算软件以及现有的常用负荷计算软件计算典型建筑的冷负荷,验证该软件的准确性和可行性。A cooling load fast calculation of cooling load is presented, which is based on the cooling load factors method.The external building envelopes are considered as a whole and the cooling load of total building envelopes can be obtained by cooling load amending coefficient. The coefficient is defined as the ratio of the cooling load of the external building envelopes to the total building envelopes cooling load in this paper. At the same time, the calculation method of the cooling load amending coefficient is proposed. When calculating the total building cooling load, simply multiply the cooling load of external building envelopes by cooling load amending coefficient to obtain the results, thus there is no need to calculate the interior building envelopes cooling load. According to the fast calculation method, fast calculation software of cooling load is compiled by Access and VBA program, which eliminates the complexity of traditional load calculation software which calculate the load of each room one by one, while avoiding the large estimated error in the method of cooling load indicator. Finally, using the cooling load fast calculation software and the common load calculation software to calculate the cooling load of typical building. Comparing the results of two methods, the cooling load fast calculation software is proved to be accurate and feasible.

关 键 词：围护结构冷负荷 冷负荷系数法 冷负荷修正系数 快速计算 冷负荷快速计算软件 

分 类 号：TU831.2[建筑科学—供热、供燃气、通风及空调工程] TU111.4