TY - JOUR
T1 - Study on explosion characteristics and self-suppression mechanism of R404A refrigerant in closed container under oxygen-enriched condition
AU - Qian, Xinming
AU - Zhang, Ruoheng
AU - Yuan, Mengqi
AU - Zhang, Qi
AU - Jiang, Juncheng
N1 - Publisher Copyright:
© 2021 The Authors
PY - 2021/8
Y1 - 2021/8
N2 - It is an urgent problem to explore the explosion characteristics and self-suppression mechanism of R404A refrigerant, because R404A refrigerant is widely used in daily life, the combustion and explosion mechanism of it is more complex and the related explosion accidents gradually appear. Based on theoretical analysis and experimental research methods, the explosion characteristics of R404A refrigerant with the main components of trifluoroethane (C2H3F3), tetrafluoroethane (C2H2F4), and pentafluoroethane (C2HF5) under an oxygen-enriched condition under normal temperature and atmospheric pressure were revealed. The flammability limit, critical oxygen content and explosion characteristic parameters of R404A refrigerant under different oxygen content were further revealed. The evolution law of explosion parameters of R404A refrigerant in an atmosphere with different oxygen and nitrogen ratios was obtained, and the self-suppression mechanism of R404A refrigerant was explored. The results can provide some guidance for the safe use of refrigerants and the establishment of relevant industry standards.
AB - It is an urgent problem to explore the explosion characteristics and self-suppression mechanism of R404A refrigerant, because R404A refrigerant is widely used in daily life, the combustion and explosion mechanism of it is more complex and the related explosion accidents gradually appear. Based on theoretical analysis and experimental research methods, the explosion characteristics of R404A refrigerant with the main components of trifluoroethane (C2H3F3), tetrafluoroethane (C2H2F4), and pentafluoroethane (C2HF5) under an oxygen-enriched condition under normal temperature and atmospheric pressure were revealed. The flammability limit, critical oxygen content and explosion characteristic parameters of R404A refrigerant under different oxygen content were further revealed. The evolution law of explosion parameters of R404A refrigerant in an atmosphere with different oxygen and nitrogen ratios was obtained, and the self-suppression mechanism of R404A refrigerant was explored. The results can provide some guidance for the safe use of refrigerants and the establishment of relevant industry standards.
KW - Evolution law
KW - Explosion characteristics
KW - Oxygen-enriched condition
KW - R404A refrigerant
KW - Self-suppression mechanism
UR - http://www.scopus.com/inward/record.url?scp=85108258440&partnerID=8YFLogxK
U2 - 10.1016/j.csite.2021.101174
DO - 10.1016/j.csite.2021.101174
M3 - Article
AN - SCOPUS:85108258440
SN - 2214-157X
VL - 26
JO - Case Studies in Thermal Engineering
JF - Case Studies in Thermal Engineering
M1 - 101174
ER -