Experimental Study on Operating Characteristic of the System of Ground Source Heat Pump Combined with Floor Radiant Heating of Capillary Tube

2009 International Conference on Energy and Environment Technology Pub Date : 2009-10-16 DOI:10.1109/ICEET.2009.166

Yunzhun Fu, Yingling Cai, Jing Li, Yeyu Wang

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引用次数: 1

Abstract

At first, the article presented particularly the working theory of the system of ground source heat pump combined with floor radiant heating of capillary tube, the characteristic of soil layers and the arrangement form of capillary tube mat and the floor structure. And then, the specific experimental method was employed to study the ground heat exchanger performance of three wells of 90m depth, heating performance of heat hump unit and capillary tube mat and the characteristic of temperature change on the layer of capillary tube mat, the floor surface and indoor air. By search, some important conclusions were drawn that coefficient of performance COP of heat pump unit in heating mode is increased 13.4% when the average supply water temperature is 32.8¿ compared with 43.6¿ and the effect of energy conservation is apparent when the ground source heat pump provides low temperature hot water at 28-35¿ to floor radiant heating system of capillary tube for heating. In addition, heating capacity of floor radiant heating system of capillary tube was strong and its maximum heating volume was 255W/m2 during the heating course.

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地源热泵结合毛细管地板辐射采暖系统运行特性的实验研究

本文首先详细介绍了地源热泵结合毛细管地板辐射采暖系统的工作原理、土层特点、毛细管垫层的布置形式和地板结构。然后，采用具体的实验方法，研究了3口深度为90m的井的地下换热器性能、热驼峰机组和毛细管垫的采暖性能以及毛细管垫层、地板表面和室内空气的温度变化特征。通过研究，得出了一些重要的结论:在平均供水温度为32.8℃时，热泵机组在采暖模式下的性能COP系数比平均供水温度为43.6℃时提高了13.4%;地源热泵为毛细管地板辐射供暖系统提供28 ~ 35℃的低温热水时，节能效果明显。此外，毛细管地板辐射采暖系统采暖能力强，采暖过程中最大采暖量为255W/m2。

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2009 International Conference on Energy and Environment Technology

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