2022
DOI: 10.1016/j.ijrefrig.2022.08.009
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Flammable refrigerant leakage hazards control for split-type household air conditioners

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Cited by 10 publications
(2 citation statements)
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“…In addition, a new quasi-liquid nitrogen method was developed to investigate the refrigerant distribution in R-290 split-type household air conditioners and the leaking rate under various conditions [15]. Ning et al [16] investigated the leakage hazard control of an R290 split-type household air conditioner with 5 mm diameter finned-tube heat exchangers under off-mode through concentration measurement and ignition experiment. Recently, Li et al [17] developed a numerical model of refrigerant leakage to assess the explosion risk analysis of R-290 leakage into a limited external space.…”
Section: Introductionmentioning
confidence: 99%
“…In addition, a new quasi-liquid nitrogen method was developed to investigate the refrigerant distribution in R-290 split-type household air conditioners and the leaking rate under various conditions [15]. Ning et al [16] investigated the leakage hazard control of an R290 split-type household air conditioner with 5 mm diameter finned-tube heat exchangers under off-mode through concentration measurement and ignition experiment. Recently, Li et al [17] developed a numerical model of refrigerant leakage to assess the explosion risk analysis of R-290 leakage into a limited external space.…”
Section: Introductionmentioning
confidence: 99%
“…The critical conditions for refrigerants that can be released are 4.3 g and 8 g for a 1-mm leak hole at 1.8 m and 2.2 m, respectively, and the installation height of the indoor unit is 2.2 m and 1.5 m, respectively, from the floor. The formula for a small releasable payload less than 17.8 g is proposed [24]. The characteristic of two-phase flow boiling using R290 with an inner diameter of 3 mm, a hydraulic diameter of 2 mm, and a length of 2 mm is that the temperature is varied from 9.97 to 9.58°C, with a constant mass flux of 101.43 kg/m 2 .s for saturation temperature as a result of increases in relative vapour quality [25].…”
Section: Introductionmentioning
confidence: 99%