The Safety Factor for the Refrigerant Charge in VRF System with Mildly Flammable Refrigerants

Ryuzaburo YAJIMA; Yukio KIGUCHI; Takashi SEKINE; Shunji SASAKI; Shuntaro ITO; Koji YAMASHITA; Toyotaka HIRAO

doi:10.11322/tjsrae.18-50T

再録論文

The Safety Factor for the Refrigerant Charge in VRF System with Mildly Flammable Refrigerants

Ryuzaburo YAJIMA, Yukio KIGUCHI, Takashi SEKINE, Shunji SASAKI, Shuntaro ITO, Koji YAMASHITA, Toyotaka HIRAO

著者情報

キーワード: Mildly flammable, Refrigerant, A2L, R32, VRF, Refrigerant charge amount, Safety factor

ジャーナルフリー

2019 年 36 巻 1 号 p. 35-

DOI https://doi.org/10.11322/tjsrae.18-50T

詳細

抄録

The safety factor for the refrigerant charge not requiring safety measures is examined. Even if the safety factor is set to 2, for mildly flammable refrigerants with a molecular weight of R 32 or higher, it is found that a flammable space with significant size that could cause an ignition accident was not formed for indoor units not equipped with a compressor and not of a floor mounted type, within the range of influence factors studied in this paper.

責任著者(Corresponding author)

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