| 地板辐射供冷系统的控制性能 |
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| 引用本文： | 黎丽华,陈杰华,张德鑫,段梦楠,杜迎迎,王建惠,金梧凤.地板辐射供冷系统的控制性能[J].制冷与空调(北京),2011(3):32-37. |
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| 作者姓名： | 黎丽华 陈杰华 张德鑫 段梦楠 杜迎迎 王建惠 金梧凤 |
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| 作者单位： | 天津商业大学天津市制冷技术重点实验室 |
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| 基金项目： | 天津市自然科学基金（07JCYBJC15000） |
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| 摘 要： | 利用地板辐射热环境专用模拟软件对地板辐射供冷系统的3种控制方式,即＂室外温度补偿＋室温反馈控制＂、＂开关控制＂和＂变流量控制＂进行比较研究,在此基础上分析各控制方式的热性能。研究结果表明：3种控制方式的室内温度偏差均维持在±1℃以内;＂室外温度补偿＋室温反馈控制＂稳定性最好,发生结露的时间最少且频率最低,维持在舒适范围内的时间最长;但3种控制方式均发生结露现象,在实际运行中应采取相应的除湿措施,若只降低室温而不除湿,室外温度较高时将导致PMV值偏大。
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| 关 键 词： | 地板辐射供冷系统 控制性能 结露 热舒适度 |
Control performance of floor radiant cooling system |
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| Li Lihua Chen Jiehua Zhang Dexin Duan Mengnan Du Yingying Wang Jianhui Jin Wufeng.Control performance of floor radiant cooling system[J].Refrigeration and Air-conditioning,2011(3):32-37. |
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| Authors: | Li Lihua Chen Jiehua Zhang Dexin Duan Mengnan Du Yingying Wang Jianhui Jin Wufeng |
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| Affiliation: | Li Lihua Chen Jiehua Zhang Dexin Duan Mengnan Du Yingying Wang Jianhui Jin Wufeng (Tianjin University of Commerce,Tianjin Key Laboratory of Refrigeration Technology) |
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| Abstract: | Using simulation software for floor radiant heat environment,contrasts the three kinds of control methods of system,such as outdoor temperature compensation with indoor temperature feedback control,on-off bang-bang control and variable flow control.On the basis of that,analyzes thermal performance of the control modes.The results show that indoor temperature deviation is lower than ±1 ℃ of three kinds of control methods,the outdoor temperature compensation with indoor temperature feedback control has the best stability,the least time and the lowest frequency of condensation,the most time maintaining comfortable scope.But three kinds of control methods show a phenomenon occurred in the actual operation,all of them should take corresponding measures of dehumidifier,and if only to lower the temperature of the indoor temperature but not to dehumidify,the PMV value will increase with the outdoor higher temperature. |
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| Keywords: | floor radiant cooling system control performance condensation thermal comfort |
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