Comparative Experimental Study on Heat Transfer Characteristics of Building Exterior Surface at High and Low Altitudes

  • JIA Yonghong ,
  • GUO Shurui ,
  • LI Jin ,
  • GUO Lei ,
  • CHENG Zhu ,
  • ZHANG Yin ,
  • YANG Hanyu ,
  • LONG Enshen
展开
  • 1. Institute for Disaster Management and Reconstruction, Sichuan University, Chengdu 610065, China
    2. MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China

网络出版日期: 2024-04-30

基金资助

This work was supported by the National Natural Science Foundation of China (52078314).

版权

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2023

Comparative Experimental Study on Heat Transfer Characteristics of Building Exterior Surface at High and Low Altitudes

  • JIA Yonghong ,
  • GUO Shurui ,
  • LI Jin ,
  • GUO Lei ,
  • CHENG Zhu ,
  • ZHANG Yin ,
  • YANG Hanyu ,
  • LONG Enshen
Expand
  • 1. Institute for Disaster Management and Reconstruction, Sichuan University, Chengdu 610065, China
    2. MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China

Online published: 2024-04-30

Supported by

This work was supported by the National Natural Science Foundation of China (52078314).

Copyright

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2023

摘要

建筑围护结构外表面换热系数是建筑节能设计所必需的重要参数之一,而高海拔基础数据匮乏。因此作者提出了一种基于模型建筑热平衡的简易实测方法,采用同一模型建筑在海拔520 m的成都和海拔3750m的稻城的室外条件下实测其外表面换热系数。重要发现在于:在相同供暖功率下,高海拔室内外空气均温升比低海拔高41.9%;内壁均温升也比低海拔高25.8%。说明高海拔地区在相同能耗条件下可营造更舒适的室内热环境。但高海拔地区的建筑外表面综合换热系数降低了34.48%。室外风速对建筑外表面对流换热系数影响不如低海拔地区显著,实验得到了对流换热系数与室外风速的拟合关系式。采用低海拔地区的建筑外表面换热特性进行高海拔地区建筑节能设计及相关供暖设备选择及系统末端匹配设计是不合适的。

本文引用格式

JIA Yonghong , GUO Shurui , LI Jin , GUO Lei , CHENG Zhu , ZHANG Yin , YANG Hanyu , LONG Enshen . Comparative Experimental Study on Heat Transfer Characteristics of Building Exterior Surface at High and Low Altitudes[J]. 热科学学报, 2024 , 33(3) : 1119 -1131 . DOI: 10.1007/s11630-023-1858-z

Abstract

The external surface heat transfer coefficient of building envelope is one of the important parameters necessary for building energy saving design, but the basic data in high-altitude area are scarce. Therefore, the authors propose a modified measurement method based on the heat balance of a model building, and use the same model building to measure its external surface heat transfer coefficient under outdoor conditions in Chengdu city, China at an altitude of 520 m and Daocheng city at an altitude of 3750 m respectively. The results show that the total heat transfer coefficient (ht) of building surface in high-altitude area is reduced by 34.48%. The influence of outdoor wind speed on the convective heat transfer coefficient (hc) in high-altitude area is not as significant as that in low-altitude area. The fitting relation between convection heat transfer coefficient and outdoor wind speed is also obtained. Under the same heating power, the average temperature rise of indoor and outdoor air at high- altitude is 41.9% higher than that at low altitude, and the average temperature rise of inner wall is 25.8% higher than that at low altitude. It shows that high-altitude area can create a more comfortable indoor thermal environment than low-altitude area under the same energy consumption condition. It is not appropriate to use the heat transfer characteristics of the exterior surface of buildings in low-altitude area for building energy saving design and related heating equipment selection and system terminal matching design in high-altitude area.

参考文献

[1] Yin W.H., Analysis of the energy industry situation in 2020 and outlook for 2021. China Price, 2021, 02: 15–17. 
[2] China Building Energy Efficiency Association, 2021 study on energy consumption and carbon emissions of buildings in China. 2021.
[3] CBEED, Building Energy and Emissions Database.
[4] Hu H.Y., China’s population distribution, zoning and outlook. Acta Geographica Sinica 1990, 02: 139–145. (in Chinese)
[5] Hao M.J., Spatial patterns of life zones and potential vegetation in Holdridge, China. Gansu, Northwest Normal University, 2009. (in Chinese)
[6] Four key points from the International Energy Agency’s World Energy Outlook 2020, Sino-Global Energy, 2021, 26(02): 98. (in Chinese)
[7] Deng Q.T., Wang G.B., Wang Y.T., et al., A quantitative analysis of the impact of residential cluster layout on building heating energy consumption in cold IIB regions of China. Energy and Buildings, 2021, 253: 111515.
[8] https://www.gov.cn/xinwen/2021-10/26/content_5645001.htm (in Chinese) 
[9] Bai X., Research on heat transfer characteristics and energy saving of rural building envelopes in cold regions. Hebei, Heibei University of Architecture 2019. (in Chinese)
[10] Gao F., Influence of heat transfer and air tightness of building surface on heating load and energy consumption in the western Sichuan alpine region. Sichuan University, Sichuan, China, 2019. (in Chinese)
[11] Shinoda J., Kazanci O. B., Tanabe S.-I., et al., A review of the surface heat transfer coefficients of radiant heating and cooling systems. Building and Environment 2019, 159: 106156.
[12] Jiang F.J., Li Z.G, Zhao Q., et al., The influence of exterior louver blinds’ geometric and thermal attributes on the convective heat transfer at building facades. Solar Energy, 2019, 193: 654–665.
[13] Montazeri H., Blocken B., New generalized expressions for forced convective heat transfer coefficients at building facades and roofs. Building and Environment, 2017, 119: 153–168.
[14] Awol A., Bitsuamlak G.T., Tariku F., Numerical estimation of the external convective heat transfer coefficient for buildings in an urban-like setting. Building and Environment, 2020, 169: 106557.
[15] Hagishima A., Tanimoto J., Field measurements for estimating the convective heat transfer coefficient at building surfaces. Building and Environment, 2003, 38(7): 873–881.
[16] Kiyono T., Asawa T., Oshio H., Laser-scanning-based method for estimating the distribution of the convective-heat-transfer coefficient on full-scale building walls. Boundary-Layer Meteorology, 2021, 178: 463–486.
[17] Loveday D.L., Taki A.H., Convective heat transfer coefficients at a plane surface on a full-scale building facade. International Journal of Heat and Mass Transfer 1996, 39(8): 1729–1742.
[18] Gonçalves J.E., Montazeri H., van Hooff T., et al., Performance of building integrated photovoltaic facades: Impact of exterior convective heat transfer. Applied Energy, 2021, 287: 116538.
[19] Crawley D.B., Hand J.W., Kummert M., et al., Contrasting the capabilities of building energy performance simulation programs. Building and Environment, 2008, 43(4): 661–673.
[20] GB20376-2019, Design code for heating, ventilation and air conditioning of civil buildings. China Construction Industry Publishing, 2019. (in Chinese)
[21] Palyvos J.A., A survey of wind convection coefficient correlations for building envelope energy systems’ modeling. Applied Thermal Engineering, 2008, 28(8–9): 801–808.
[22] Riederer P., Marchio D., Visier J.C., et al., Room thermal modelling adapted to the test of HVAC control systems. Building and Environment, 2002, 37: 777–790.
[23] Pan Y.Q., Huang Z.Z., Wu G., A calibration method for building energy simulation and its application, Heating, Ventilation and Air Conditioning, 2007, 07: 21–26. (in Chinese)
[24] Liu D.L., Liu J.P., Yang L., et al., A study of simulated meteorological data for building energy consumption under climate change. Journal of Civil, Architectural & Environmental Engineering, 2012, 34(02): 110–114. (in Chinese)
[25] Li Z.R., Hao Y.H., Zhao Q., et al., Thermal optimization design and load analysis of ultra-low energy consumption buildings in hot summer and cold winter areas. Building Science, 2017, 33(12): 182–187. (in Chinese)
[26] Yang L., Hou L.Q., Li H.L., et al., Regression model for predicting energy consumption in air-conditioned office buildings. Journal of Xi’an University of Architecture and Technology (Natural Science Edition), 2015, 47(05): 707–711. (in Chinese)
[27] Defraeye T., Blocken B., Carmeliet J., CFD analysis of convective heat transfer at the surfaces of a cube immersed in a turbulent boundary layer. International Journal of Heat and Mass Transfer, 2010, 53(1–3): 297–308. 
[28] Montazeri H., Blocken B., Derome D., et al., CFD analysis of forced convective heat transfer coefficients at windward building facades: Influence of building geometry. Journal of Wind Engineering and Industrial Aerodynamics, 2015, 146: 102–116.
[29] ASHRAE, Procedure for determining heating and cooling loads for computerizing energy calculations. Algorithms for building heat transfer subroutines, ASHRAE, New York, 1975. ASHRAE, New York 1975.
[30] Chartered Institute of Building Services (CIBS). Guide Book A, Section A3, CIBS, London 1979.
[31] Sparrow E.M., Ramsey J.W., Mass E.A., Effect of finite width on heat transfer and fluid flow about an inclined rectangular plate. ASME Journal of Heat and Mass Transfer, 1979, 101(2): 199–204.
[32] Liu Y., Harris D.J., Full-scale measurements of convective coefficient on external surface of a low-rise building in sheltered conditions. Building and Environment, 2007, 42(7): 2718–2736.
[33] Evangelisti L., Guattari C., Gori P., et al., Heat transfer study of external convective and radiative coefficients for building applications. Energy and Buildings, 2017, 151: 429–438.
[34] Sharples S., Full-scale measurements of convective energy losses from exterior building surfaces. Building and Environment, 1984, 19: 31–39.
[35] Jayamaha S.E.G., Wijeysundera N.E., Chou S.K., Measurement of the heat transfer coefficient for walls. Building and Environment, 1996, 31(5): 399–407.
[36] Zhu X.R., Yang Q., Yang W., et al., Field testing of heat flux and heat exchange coefficients on building exterior surface. Industrial Construction, 2020, 50(7): 83–87.
[37] Zhu X.R., Yang X., Yang W., et al., Field test study of heat flow and heat transfer coefficient on the external surface of heating buildings. Energiae Solaris Sinica, 2021, 42(8): 258–264.
[38] Yang W., Zhu X.R., Liu J.P., Annual experimental research on convective heat transfer coefficient of exterior surface of building external wall. Energy and Buildings, 2017, 155(15): 207–214.
[39] ASHRAE, American Society of Heating, Refrigerating and Air-Conditioning Engineers. Inc., GA. U.S.A, 1985.
[40] CIBS Guide Book A, Section A3, CIBS, London, 1979.
[41] Sturrock N.S., Localised boundary layer heat transfer from external building surfaces. PhD Thesis, University of Liverpool, 1971.
[42] Sparrow E.M., Nelson J.S., Tao W.Q., Effect of leeward orientation, adiabatic framing surfaces, and eaves on solar-collector-related heat transfer coefficients. Solar Energy, 1982, 29: 33–41.
[43] Sparrow E.M., Tien K.K., Forced convection heat transfer at an inclined and yawed square plate—Application to solar collectors. ASME Journal of Heat Transfer, 1977, 99: 507–512.

文章导航

/