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Heat Pump Cycle Using Refrigerant Mixtures of HFC32 and HFO1234yf

机译：使用HFC32和HFO1234YF的制冷剂混合物的热泵循环

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摘要

Countermeasures for global warming have been promoted internationally. Heat pump cycles that utilize refrigerants with high global warming potential values are required to adopt the next generation refrigerants to conform to the revised Montreal Protocol. Refrigerants R410A is commonly used in the room air conditioners while it has been substituted with HFC32 in Japan; yet their global warming potential values are relatively high and are going to be phased down in the near future. On the other hand, refrigerant mixtures such as the blend of HFC32 and HFO1234yf with extremely low global warming potential can be considered as possible alternatives in compromising the flammability and the ecological tribulations. Targeting the global warming potential value of 150 or lower, the performance of HFC32/HFO1234yf (22/78 mass%) blend was evaluated using drop-in tests, and the results were compared with those of R410A and HFC32. Optimum charge amounts for these refrigerants were first evaluated, followed by the performance comparison in terms of the coefficient of performance from part- to full-load operations. The results showed that the current blend with the low global warming potential less than 150 is comparable to the targeted substitutes at part-load operations while within 83 - 87% of the COP using HFC32 was achievable at the full-load. The performance results from these experiments could serve as the basis for the refrigerant evaluation targeting the global warming potential 150.
机译：全球变暖的对策已在国际上推广。需要使用具有高全球变暖潜在值的制冷剂的热泵循环来采用下一代制冷剂符合修订的蒙特利尔方案。制冷剂R410A通常用于室内空调，同时它已在日本的HFC32取代;然而，他们的全球变暖潜在价值观相对较高，并且将在不久的将来逐步下降。另一方面，制冷剂混合物如HFC32和HFO1234YF的共混物，可以考虑损害易燃性和生态培训的可能替代方案。靶向全球变暖势值为150或更低，使用下降试验评估HFC32 / hFO1234YF（22/78质量％）混合物的性能，并将结果与​​R410A和HFC32的结果进行比较。首先评估这些制冷剂的最佳电荷量，然后根据从部分到满载操作的性能系数的性能比较。结果表明，具有小于150的低全球变暖电位的电流混合物与部分负荷操作的靶标替代品相当，而在全载荷中可以实现使用HFC32的83-87％的COP。来自这些实验的性能结果可以作为针对全球变暖潜力150的制冷剂评估的基础。

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  • 来源
    《Heat Transfer Engineering》 |2021年第14期|1097-1106|共10页
  • 作者

    Kosei Takezato; Shou Senba; Takahiko Miyazaki; Nobuo Takata; Yukihiro Higashi; Kyaw Thu;

  • 作者单位

    lnterdisciplinary Graduate School of Engineering Sciences Kyushu University Kasuga-city Japan;

    lnterdisciplinary Graduate School of Engineering Sciences Kyushu University Kasuga-city Japan;

    lnterdisciplinary Graduate School of Engineering Sciences Kyushu University Kasuga-city Japan lnternational Institute for Carbon-Neutral Energy Research (WPI-I2CNER) Kyushu University Kasuga-city Japan;

    lnterdisciplinary Graduate School of Engineering Sciences Kyushu University Kasuga-city Japan;

    lnternational Institute for Carbon-Neutral Energy Research (WPI-I2CNER) Kyushu University Kasuga-city Japan;

    lnterdisciplinary Graduate School of Engineering Sciences Kyushu University Kasuga-city Japan lnternational Institute for Carbon-Neutral Energy Research (WPI-I2CNER) Kyushu University Kasuga-city Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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