首页> 外文期刊>ASHRAE Transactions >Determination of Heat Transfer Coefficient Between Heated Floor and Space Using the Principles of AN SI/ASHRAE Standard 138 Test Chamber
【24h】

Determination of Heat Transfer Coefficient Between Heated Floor and Space Using the Principles of AN SI/ASHRAE Standard 138 Test Chamber

机译:Determination of Heat Transfer Coefficient Between Heated Floor and Space Using the Principles of AN SI/ASHRAE Standard 138 Test Chamber

获取原文
获取原文并翻译 | 示例
       

摘要

In this study, heat transfer coefficients for radiant floor heating systems were investigated in a special test chamber that is one of the very first implementations of ANSI/ASHRAE Standard 138 in the world. Radiant systems offer high energy- and exergy-efficient sensible heating and cooling potential. These systems can be directly coupled with low enthalpy, renewable, or waste heat resources. Heat transfer coefficients are important design parameters for radiant systems that effect the heat transfer capacity of the heated/cooled surface to the indoors. In this study, radiant, convective, and total heat transfer coefficients for radiant floor heating were investigated experimentally. Experiments were conducted in a special test chamber that was established according to ANSI/ASHRAE Standard 138 with minor differences. The test chamber dimensions are 2. 74 x 2.25 x 2.45m (8.99 x 7.38 x 8.04ft)and there are no floor coverings during the test. Coefficients were determined through two difference methods. Heat fluxes from the heated floor that calculated via both methods and obtained from the "Design Graph for Sensible Heating and Cooling with Floor and Ceiling" in ASHRAE Handbook-HVAC Systems and Equipment (ASHRAE 2008). According to the experimental results, total heat transfer coefficients for the radiant heating system were obtained between 8.8 and 12.1 W/ m~2K (1.43 and 2.13 Btu/h·ft~2·°F).

著录项

  • 来源
    《ASHRAE Transactions》 |2017年第1期|71-81|共11页
  • 作者单位

    Department of Energy Science and Technologies, Turkisch-Deutsche Universitat, Istanbul, Turkey;

    Department of Mechanical Engineering, Gazi University, Ankara, Turkey;

    Department of Energy Engineering, Baskent University, Ankara, Turkey;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 英语
  • 中图分类
  • 关键词

获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号