SONG Qi, LE Shengjian, LÜ Dongjie, et al. Simulations and experiments of substitution of R41 for R23 in auto-cascade refrigeration cycle with rectifying column at -60℃[J]. CIESC Journal, 2016, (S2): 304-310.
SONG Qi, LE Shengjian, LÜ Dongjie, et al. Simulations and experiments of substitution of R41 for R23 in auto-cascade refrigeration cycle with rectifying column at -60℃[J]. CIESC Journal, 2016, (S2): 304-310.DOI: 10.11949/j.issn.0438-1157.20161407.
R41 was selected to substitute for R23 in an auto-cascade refrigeration cycle with a rectifying column at-60℃.Performance comparisons and analyses were conducted when R1234ze(E) was selected as the less volatile component.An experimental apparatus was designed and established to compare the performances of R23/R1234ze(E) and R41/R1234ze(E) in the system.Both theoretical and experimental results showed that when adopting R1234ze(E) as the less volatile component
COP values decreased slightly and the compression work per unit volume decreased by 1/3-1/2 after the substitution of R41 for R23.Besides
the refrigeration capacity per unit volume also decreased slightly
but the refrigeration capacity per unit mass showed an obvious increase
which would result in significant refrigerant charge reduction.More importantly
the reduction in GWP of R41 would bring obvious environmental protection effect.