ken as 15 years. Total initial cost consists of the initial cost of the
ACS and the cost of the building insulation.
The initial and operating costs of the ACS and the insulation cost
of the building are given in Table 11 for all building types consid-
ered in this study.
Results of the economic analyses are given in Table 12. From the
table it is seen that at the end of the lifetime (15 years), the pres-
ent-worth cost of the no insulation building is $302,873 for the
CAV air distribution system. There is almost no difference between
the insulated buildings (<2.8%). The present-worth cost for the
insulated buildings is approximately 26% smaller than that for
the no insulation building.
In the case of the VAV air distribution system, the trend is sim-
ilar to that for the CAV. While the present-worth cost of the no
insulation building at the end of the lifetime is $223,634, its value
for Buildings A, B and C are, respectively, 17.5%, 19.6% and 20.6%
less than for the no insulation building.
Annual variation of the overall present-worth cost of the ACS for
all building types are presented in Figs. 6 and 7 for VAV and CAV
systems, respectively. From the figures it is seen that the pres-
ent-worth cost of the no insulation building is always higher than
that of Buildings A, B and C even from the initial installation of the
system. The difference between the no insulation building and the
insulated buildings continually increases during lifetime. These re-
sults show that the insulation applied to the building envelope for
all thicknesses considered in this study is feasible.
In this study, Building C, which has the least thermal insulation
among the insulated building types, was compared with Buildings建筑保温对冷负荷的影响及湿热地区空调系统的案例研究
摘要：在那些建筑供冷要求按照供暖要求占主导地位的地区，确保有效的保温在能源经济方面是非常重要的。在这份研究报告中，建筑保温对空调负荷和制冷系统的影响，假设用全空气式的中央空调系统来评估位于阿达纳（土耳其的一个省）的一座样本建筑，在以土耳其使用的建筑保温规定中定义的能效指数为标准的前提下，基于三种不同类型保温(A,B和C型建筑）情况下的结果。利用冷却箱的数目来计算空调系统的运行成本，采用现行的成本理论对空调系统生命周期内运行成本的分析，结果表明三种保温结构都很大程度上降低了空调系统的初成本和运行成本。然而，鉴于考虑综合经济效益，得到最佳的结果为C型建筑。因此在土耳其南部的建筑保温结构，应根据C型建筑的保温来作为指导标准。毕业论文
关键词：保温  减少冷负荷  节能  建筑节能性能
暖通空调系统英文文献和中文翻译(7):http://www.youerw.com/fanyi/lunwen_1940.html