不同环境参数对太阳能供热与制冷联合循环机组热力性能的影响研究
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山西大同大学 建筑与测绘工程学院

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TK513

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Influence of Different Environmental Parameters on Thermal Performance of Solar Heating and Refrigeration Combined Cycle Units
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College of Architecture and Mapping Engineering Shanxi Datong University

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    摘要:

    为了研究不同环境参数对太阳能供热与制冷联合循环机组热力性能的影响,构建试验装置,建立机组模型,完成机组热力分析。将机组制冷系数、供热效率以及?效率作为机组热力性能评价指标,从蒸发压力、冷凝温度、太阳辐射量三个方面对建立机组模型进行验证,分别研究对机组热力性能的影响情况。结果发现,随着蒸发压力的逐渐升高,机组热效率、?效率以及制冷系数均呈升高趋势;冷凝温度升高时,机组热效率、机组?效率与制冷系数呈下降趋势;随着太阳辐射量的逐渐升高,机组制冷系数、热效率和?效率均有所升高,且在太阳辐射量降低的情况下,热力性能指标没有降低,反而在一定程度上有所升高。试验研究结果表明,不同环境参数对太阳能供热与制冷联合循环机组热力性能有一定影响,且性能较高。

    Abstract:

    In order to study the influence of different environmental parameters on the thermal performance of solar energy heating and refrigeration combined cycle units, a test device was constructed, a unit model was established, and the thermal analysis of the units was completed. The refrigeration coefficient, heating efficiency and efficiency of the unit are taken as the evaluation indexes of the unit's thermal performance. The model of the unit is verified from three aspects: evaporation pressure, condensation temperature and solar radiation. The influence on the thermal performance of the unit is studied respectively. The results show that with the increasing of evaporation pressure, the thermal efficiency, efficiency and refrigeration coefficient of the unit are all increasing, and the thermal efficiency, efficiency and refrigeration coefficient of the unit are decreased when the condensing temperature increases. With the increase of solar radiation, the refrigeration coefficient, thermal efficiency and efficiency of the unit are all increased, and the thermodynamic performance index is increased to a certain extent instead of decreasing the solar radiation. The experimental results show that different environmental parameters have a certain influence on the thermal performance of solar heating and refrigeration combined cycle units, and the performance is higher.

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王利霞. 不同环境参数对太阳能供热与制冷联合循环机组热力性能的影响研究[J]. 科学技术与工程, 2018, 18(35): .
WANG Lixia. Influence of Different Environmental Parameters on Thermal Performance of Solar Heating and Refrigeration Combined Cycle Units[J]. Science Technology and Engineering,2018,18(35).

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  • 收稿日期:2018-08-10
  • 最后修改日期:2018-10-09
  • 录用日期:2018-10-10
  • 在线发布日期: 2018-12-24
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