DEVELOPMENT OF A TRANSCRITICAL R744 BOTTLE COOLER
This paper presents a project to develop a R744 commercial single door bottle cooler that is cost competitive and matches the performance of typical cost optimised R404A and R134a systems. A prototype was developed with components easily available on the market; this system consists of a single stage reciprocating hermetic compressor, conventional fin and tube evaporator, wire-on-tube gas cooler and a capillary tube throttling device, externally brazed to the suction line.A CO2 compressor was tested and the energy efficiency of the system was compared with the one of the same appliance employing conventional technology and traditional refrigerants. The energy performance of the CO2 system under steady-state and cyclic operations was investigated and compared with the one of the conventional refrigerants. Guidelines for optimising the design of the critical components are illustrated.
L.CECCHINATO M.CORRADI G.SCHIOCHET C.FOSSATI
Dipartimento di Fisica Tecnica, Università degli Studi di Padova, via Venezia, 1,Padova, I-35131, It Mondial Group S.r.l., Strada Pasigliano, 15,S. Giorgio Monferrato (AL), I-15020, Italy
国际会议
The 22nd International Congress of Refrigeration(第22届国际制冷大会)
北京
英文
2007-08-21（万方平台首次上网日期，不代表论文的发表时间）