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首页> 外文期刊>Journal of Heat Transfer >Pool Boiling of R514A, R1224yd(Z),and R1336mzz(E) on a Reentrant Cavity Surface
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Pool Boiling of R514A, R1224yd(Z),and R1336mzz(E) on a Reentrant Cavity Surface

机译：R514A，R1224YD（Z）和R1336MZZ（e）的池沸腾

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摘要

This paper quantifies the pool boiling performance of R514A, RlZZ4yd(Z.), and R1336mzz(E) on a flattened, horizontal Turbo-ESP surface for air-conditioning applications for heat fluxes between roughly 10 kWm~2 and 100 kWm~(-2). R514A, R1224yd(Z), and R1336mzz(E) are replacements for R123 and R245fa. All of these replacement refrigerants had measured boiling heat fluxes that were larger than that for R123 for most heat fluxes. For example, for heat fluxes between 10 kWm~(-2) and 80 kWm~(-2), R514A, R1224yd(Z), and R1336mzz(E) exhibited average heat fluxes that were 30%, 57%, and 13% larger than that for R123 for a saturation temperature of 277.6 K. For the same comparison done at a saturation temperature of 298.2 K, the average heat flux for R514A was roughly 43% larger than that for R123. A pool boiling model, that was previously developed for pure and mixed refrigerants on the Turbo-ESP surface, was compared to the measured boiling performance. The model predicted the measured superheats of the mixed refrigerants and the single-component refrigerants to within ±0.7 K and ± 0.45 K, respectively.
机译：本文量化了R514A，RLZZ4YD（Z.）的池沸点性能，以及R1336MZZ（E）在扁平的水平涡轮ESP表面上，用于空调应用，用于热通量大约10kWm〜2和100kWM〜（ - 2）。 R514A，R1224YD（Z）和R1336MZZ（E）是R123和R245FA的替代品。所有这些替代制冷剂已经测量沸腾的热通量大于R123的沸腾热通量，用于大多数热通量。例如，对于10kWm〜（-2）和80kWM〜（-2），R514a，R1224yd（z）和R1336mzz（e）的热通量显示出30％，57％和13％的平均热通量对于饱和温度的R123大于277.6k的饱和温度大。对于在298.2K的饱和温度下进行的相同的比较，R514a的平均热通量大约比R123大的43％。与测量的沸腾性能进行比较，以前为涡轮氧化镁表面上为纯和混合制冷剂开发的池沸腾模型。该模型将混合制冷剂的测量过热和单组分制冷剂分别预测到±0.7k和±0.45 k内。

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  • 来源
    《Journal of Heat Transfer》 |2021年第5期|051602.1-051602.9|共9页
  • 作者

    M. A. Kedzierski; L. Lin;

  • 作者单位

    Engineering Laboratory National Institute of Standards and Technology Gaithersburg 20899 MD;

    Engineering Laboratory National Institute of Standards and Technology Gaithersburg 20899 MD;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    boiling; enhanced heat transfer; refrigerants; structured surface;

    机译：沸腾;增强的传热;制冷剂;结构化表面;

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