| 鲁 齐， 蔡颖玲.冷却塔辅助地源热泵空调系统夏季运行实验研究[J].轻工机械,2017,35(4):92-95 |
| 冷却塔辅助地源热泵空调系统夏季运行实验研究 |
| Ground Source Heat Pump Aided by Cooling Tower Air Conditioning System |
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| DOI：10.3969/j.issn.1005 2895.2017.04.020 |
| 中文关键词: 地源热泵 冷却塔 土壤温变特性 制冷能效比 |
| 英文关键词:ground source heat pump cooling tower characteristics of soil temperature variation refrigeration energy efficiency ratio |
| 基金项目:上海市教委科研创新项目（09YZ372） |
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| 摘要点击次数: 1441 |
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| 中文摘要: |
| 上海地区具有夏热冬冷的气候特点，为了消除地源热泵技术应用存在冷热负荷的不平衡，改善热泵机组长期运行性能，在“地源热泵系统实验平台”基础上，加入冷却塔，建成“冷却塔辅助地源热泵空调系统实验平台”，并进行了一系列夏季制冷实验。实验平台以土壤温变特性为出发点，共设计3种不同的运行模式，利用西门子PLC200作为下位机，组态软件WinCC作为上位机监管软件，完成对现场的控制和数据的采集、归档。对单独地源热泵连续和间歇2种运行模式、以及冷却塔 地源热泵联合运行模式中2种设备不同的耦合方案都进行了研究和比较。实验测试结果表明：间歇模式和联合模式都可减缓土壤温度的上升，联合运行模式减缓的幅度更大。冷却塔的加入，提高了系统制冷能效比和稳定性，减缓了土壤热堆积。 |
| 英文摘要: |
| Shanghai is characterized by hot summer and cold winter, in order to eliminate the application of ground source heat pump technology of hot and cold load imbalance, improve the performance of heat pump unit runs for a long time, on the basis of the "experimental platform for ground source heat pump system",the cooling tower was joined to built the "cooling tower auxiliary ground source heat pump air conditioning system experimental platform", and a series of summer cooling experiments were completed. With the starting point of characteristics of soil temperature variation, this experiment platform designed three different kinds of operation mode totally which used the Siemens PLC200 as lower computer and Siemens configuration software WinCC as the host computer supervision software to realize the function of the field control and field data collection and archiving. Two operation modes of continuity and intermission for ground source heat pump were both studied and compared. So did different coupling schemes of two devices in the cooling tower ground source heat pump coupling operation mode.The experimental test results show that intermittent and coupling modes can reduce the growth of soil temperature. The magnitude of the mitigation is greater to coupling operation mode. The addition of cooling tower can improve the refrigeration energy efficiency ratio and the stability of system operation which can slow down the thermal accumulation of soil. |
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