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MODELLING OF SCROLL COMPRESSORS USED IN DOMESTIC HEAT PUMPS

机译:家用热泵中涡旋压缩机的建模

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摘要

This paper presents a simple and thermodynamically realistic model of scroll compressors used in domestic heat pumps.It calculates the mass flow rate of refrigerant and the power consumption from the knowledge of operating conditions and parameters.Some of these parameters may be found in the technical datasheets of compressors whereas others are determined in such a way that the calculated mass flow rate and electrical power match those given in these datasheets. rnOur model has been tested on several compressors and we have limited our study to those with a maximum electrical power of 10 kW and for the following operating conditions:evaporating temperatures ranging from- 20°C to 15°C and condensing temperatures ranging from 15°C to 60°C.The average discrepancies on mass flow rate and power are 1.89%and 0.76%(R134a),2.76%and 1.12%(R404A),2.39%and 0.91%(R407C),2.59%and 1.31%(R22). rnAs we have instrumented several heat pumps with different sensors(temperature,pressure,mass flow rate and power),we have validated our model by simulating experimental points of one of those heat pumps using the parameters which were previously determined.Errors on the mass flow rate between simulation and measurement values are lower than 6%while errors on the power are lower than 8%.
机译:本文介绍了一种用于家用热泵的涡旋压缩机的简单且热力学逼真的模型,可根据运行条件和参数来计算制冷剂的质量流量和功耗,其中一些参数可在技术数据表中找到压缩机的数量,而其他压缩机的数量则应使计算出的质量流量和电功率与这些数据表中给出的值相匹配。 rn我们的模型已经在数台压缩机上进行了测试,我们的研究仅限于最大功率为10 kW且在以下运行条件下进行:蒸发温度-20°C至15°C,冷凝温度15°C C至60°C。质量流量和功率的平均差异为1.89%和0.76%(R134a),2.76%和1.12%(R404A),2.39%和0.91%(R407C),2.59%和1.31%(R22 )。 rn由于我们已经用不同的传感器(温度,压力,质量流量和功率)对数台热泵进行了仪表检测,因此我们通过使用先前确定的参数模拟了其中一个热泵的实验点来验证了模型。模拟值和测量值之间的比率低于6%,而功率误差低于8%。

著录项

  • 来源
    《Compressors 2006》|2006年|p.1-7|共7页
  • 会议地点 Casta Papiernicka(SK);Casta Papiernicka(SK)
  • 作者单位

    Thermodynamics department,Facultépolytechnique de Mons,31 bd Dolez,7000 Mons,Belgium,Tel:+32 65 37 42 08,Fax:+32 65 37 42 09,Marie-Eve.Duprez@fpms.ac.be;

    Thermodynamics department,Facultépolytechnique de Mons,31 bd Dolez,7000 Mons,Belgium,Tel:+32 65 37 42 08,Fax:+32 65 37 42 09,Eric.Dumont@fpms.ac.be;

    Thermodynamics department,Facultépolytechnique de Mons,31 bd Dolez,7000 Mons,Belgium,Tel:+32 65 37 42 06,Fax:+32 65 37 42 09,Marc.Frere@fpms.ac.be;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 压缩机;
  • 关键词

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