4Getu H M, Bansal P K. Thermodynamic analysis of an R744-R717 cascade refrigeration system [J]. Int.J. Refrigeration, 2007.31 (1):45-54.
5Lee T S, Liu C H, Chen T W. Thermodynamic analysis of optimal condensing temperature of cascade-condenser in CO2/NH3 cascade refrigeration systems [J]. Int. J. Refrigeration, 2006.29 (7) : 1100-1108.
6FERNANDEZ-SEARA J, ARIAS A, DOPAZO A, et al. Simulation model of a CO2/NH3 cascade refrigeration system prototype[C]. International Congress of Refrigeration, Beijing, 2007.
7SAWALHA S, CABREJAS C P, LIKITTHAMMANIT M, et al. Experimental investigation of NH3/CO2 cascade system and comparison to R404A system for supermarket [C]. International Congress of Refrigeration, Beijing, 2007.
9J Pettersen,A Jakobsen.A dry ice slurry system for low temperature refrigeration∥Int Symposium on Refrigeration in Sea Transport Today and in the Future.Poland:Gdansk,1994.
10Lorentzen G. Revival of carbon dioxide as a refrigerant [J]. Part 1.H & V Engineer, 1993, 66(721): 9-14.
