FIELD TESTING OF HEAT FLUX AND HEAT EXCHANGE COEFFICIENTS ON BUILDING EXTERIOR SURFACE

ZHU Xinrong; QIU Yang; YANG Wen; YANG Xuan; LIU Jiaping

doi:10.13204/j.gyjzG19113009

Volume 50 Issue 7

Oct. 2020

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2020 > 50(7): 83-87,150

ZHU Xinrong, QIU Yang, YANG Wen, YANG Xuan, LIU Jiaping. FIELD TESTING OF HEAT FLUX AND HEAT EXCHANGE COEFFICIENTS ON BUILDING EXTERIOR SURFACE[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(7): 83-87,150. doi: 10.13204/j.gyjzG19113009

Citation:

ZHU Xinrong, QIU Yang, YANG Wen, YANG Xuan, LIU Jiaping. FIELD TESTING OF HEAT FLUX AND HEAT EXCHANGE COEFFICIENTS ON BUILDING EXTERIOR SURFACE[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(7): 83-87,150. doi: 10.13204/j.gyjzG19113009

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FIELD TESTING OF HEAT FLUX AND HEAT EXCHANGE COEFFICIENTS ON BUILDING EXTERIOR SURFACE

doi: 10.13204/j.gyjzG19113009

1. School of Architecture, Xi'an University of Architecture and Technology, Xi'an 710055, China;
2. State Key Laboratory of Green Building in Western China, Xi'an 710055, China

Received Date: 2019-11-30
Publish Date: 2020-10-17

Abstract

Abstract

Heat transfer coefficient of building surface is an important parameter for building thermal engineering, energy saving and energy consumption simulation. In order to investigate the dynamic changes of heat flow and heat transfer coefficient on the actual building surface, to improve the accuracy of building energy consumption simulation, and to provide basic parameter data for codes and standards, the direct heat balance method was adopted in this study. Field tests were carried out on the external walls of an office building in Xi'an, the convection/radiation and total heat flux of the external walls were obtained. On the basis of experiment, the convection heat transfer coefficient(CHTC), the radiation heat transfer coefficient(RHTC), and total heat transfer coefficient of the surface were obtained. The results indicated that the radiation and convection heat transfer coefficients of the external walls changed from 1.59 to 29.18 W/(m²·K) and 0.14 to 7.56 W/(m²·K), respectively. The radiation heat flux of the external walls accounted for 85% during the daylight and 50% during the night of the total heat flux. For the natural wind with low wind speed, the value of maximum frequency was suggested to be used as the design value.
- heat transfer coefficient,
- convective,
- radiative,
- heat flux density,
- field test

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References(22)

References

张泠,汤广发,陈友明,等.一种测定建筑墙体外表面换热系数的实验方法[J].湖南大学学报(自然科学版),2001(3):102-107.

刘艳峰,刘加平.建筑外壁面换热系数分析[J].西安建筑科技大学学报(自然科学版),2008(3):407-412.

中华人民共和国城乡和住房建设部. 民用建筑热工设计规范:GB 50176-2016[S].北京:中国建筑工业出版社,2016.

王烨,王良璧,胡文婷,等.建筑外壁面换热系数对室内自然对流传热影响[J].哈尔滨工程大学学报,2015,36(9):1206-1211.

MIRSADEGHI M, CóSTOLA D, BLOCKEN B, et al. Review of External Convective Heat Transfer Coefficient Models in Building Energy Simulation Programs:Implementation and Uncertainty[J]. Applied Thermal Engineering,2013,56(1/2):134-151.

DEFRAEYE T,BLOCKEN B,CARMELIET J. Convective Heat Transfer Coefficients for Exterior Building Surfaces:Existing Correlations and CFD Modelling[J]. Energy Conversion and Management,2010,52(1):512-522.

张建荣,刘照球.混凝土对流换热系数的风洞实验研究[J].土木工程学报,2006(9):39-42,61.

徐佳佳,史献林,王向转.民用飞机风挡表面对流换热系数的校核[J].民用飞机设计与研究,2015(1):87-90,108.

JUBAYER C M, SIDDIQUI K, HANGAN H. CFD Analysis of Convective Heat Transfer from Ground Mounted Solar Panels[J]. Solar Energy,2016(133):556-566.

GAO S, OOKA R, OH W. Formulation of Human Body Heat Transfer Coefficient Under Various Ambient Temperature, Air Speed and Direction Based on Experiments and CFD[J]. Building and Environment,2019(160):106168.https://doi.org/10.1016/j.buildenv.2019.106168.

邵建涛,刘京,赵加宁,等.建筑水平屋面对流换热特性的实验研究[J].华南理工大学学报(自然科学版),2008(3):134-139.

XIE J C, CUI Y P, LIU J P, et al. Study on convective heat transfer coefficient on vertical external surface of island-reef building based on naphthalene sublimation method[J]. Energy and Buildings, 2018(158):300-309.

陈默,谢静超,姬颖,等.高温、强辐射条件下萘升华法测量对流换热系数的适用性研究[J].建筑科学,2019,35(12):62-68.

HAGISHIMA A, TANIMOTO J, NARITA K. Intercomparisons of experimental convective heat transfer coefficients and mass transfer coefficients of urban surfaces[J]. Boundary-Layer Meteorology. 2005, 117(3):551-576.

YANG W, ZHU X, LIU J. Annual Experimental Research on Convective Heat Transfer Coefficient of Exterior Surface of Building External Wall[J]. Energy & Buildings, 2017, 155.

MCADAMS W H, Heat Transmission McGraw-Hill Kogakusha[M]. Tokyo, Japan, 1954.

Chartered Institute of Building Services (CIBS). Guide Book A:Section A3[M]. London:1979.

ASHRAE Task Group. Procedure for Determining Heating and Cooling Loads for Computerising Energy Calculations. Algorithms for Building Heat Transfer Subroutines[M]. New York:1975.

ITO N, KIMURA K, OKA J. A Field Experiment Study on the Convective Heat Transfer Coefficient on the Exterior Surface of a Building[J]. ASHRAE Transactions, 1972, 78:184.

HAGISHIMA A, TANIMOTO J.Field Measurements for Estimating the Convective Heat Transfer Coefficient at Building Surfaces[J]. Building and Environment,2003,38:873-881.

曹梅,杨珍,王斌.西安城区与郊区风向风速差异分析[J].陕西气象,2016(2):19-23.

王雯燕,曹红丽,张颖梅,等.西安雾区垂直结构气象要素特征分析[J].甘肃科学学报,2014,26(3):32-34.

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