Method for dynamic thermal insulation design revealing almost real heat transfer characteristics of building envelopes in different Chinese regions

被引：14

作者：

Zhang, Shuai ^{[1
,2
]}

Yang, Liu ^{[1
,2
]}

Suonam, Baimu ^{[3
]}

Dong, Hong ^{[4
]}

Liu, Yan ^{[1
,2
]}

机构：

[1] Xian Univ Architecture & Technol, State Key Lab Green Bldg Western China, Xian 710055, Shaanxi, Peoples R China

[2] Xian Univ Architecture & Technol, Sch Architecture, Xian 710055, Shaanxi, Peoples R China

[3] Tibet Univ, Inst Technol, Lhasa 850000, Tibet, Peoples R China

[4] Beijing Univ Civil Engn & Architecture, Beijing 100044, Peoples R China

来源：

ENERGY AND BUILDINGS | 2022年 / 274卷

基金：

中国国家自然科学基金;

关键词：

Thermal insulation design; Solar radiation; Dynamic heat transfer; Climate zoning; Field tests; WALL; ENERGY; OPTIMIZATION; PERFORMANCE; LOCATION;

D O I：

10.1016/j.enbuild.2022.112419

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The thermal insulation design for building envelopes in winter is traditionally based on steady-state heat transfer, which is the common ground of related building energy efficiency standards in the world. However, its adaptability may be limited to highly dynamic indoor and outdoor thermal environments, especially due to intense solar radiation. This study aims to explore the influence of climatic conditions on the heat transfer of building envelopes and the dynamic thermal insulation (DTI) design method responding to the local climate in China. The actual heat transfer characteristics of residential building envelopes and related factors were investigated based on field tests in two regions. The results showed that in contrast to Guanzhong Plain in Xi???an, strong alternate variations and differences occurred in the heat transfers of building envelopes at different orientations in Tibetan Plateau in Lhasa due to intense solar radiation and large diurnal temperature range. Hence, a DTI design method based on the dynamic heat transfer characteristics is recommended in these areas to maximize solar energy utilization. The out-door heating supply degree-hours (OHSDH) and outdoor heating supply duration (OHSD) were developed to analyze DTI suitability zoning for 234 cities and towns in China. The optimal zone was identified as Sichuan-Tibet Plateau in Western China with high OHSD and OHSDH values (over 7 h and 95.64 ??C???h, respectively). The study findings may provide references for the development of precise climate-responsive design. ?? 2022 Elsevier B.V. All rights reserved.

引用

页数：18

共 45 条

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