A comparison is made between an ice-slurry solution with different inlet ice mass fractions and an R404a refrigerant utilised in an evaporator with constant heat power and fixed geometry. The comparison is obtained using a parameter that represents the ratio between the total real entropy variation and the exchanged heat. This parameter, introduced by Grazzini and Ferraro (2000), shows that an ice-slurry solution is better than an R404a as refrigerant fluid, when considering a particular heat exchanger. The heat exchanger used is of a finned tube type with an in-line tube bank. Results show that with the same heat power ice-slurry entropy variation is lower than that given by R404a.

HOW TO CHOOSE COOLING FLUID IN FINNED TUBE HEAT EXCHANGERS / A. GAGLIARDI; G. GRAZZINI. - STAMPA. - (2002), pp. 47-53. (Intervento presentato al convegno Fifth IIR WORKSHOP ON ICE SLURRIES, tenutosi a STOCKHOLM nel 30-31 may).

HOW TO CHOOSE COOLING FLUID IN FINNED TUBE HEAT EXCHANGERS

GRAZZINI, GIUSEPPE
2002

Abstract

A comparison is made between an ice-slurry solution with different inlet ice mass fractions and an R404a refrigerant utilised in an evaporator with constant heat power and fixed geometry. The comparison is obtained using a parameter that represents the ratio between the total real entropy variation and the exchanged heat. This parameter, introduced by Grazzini and Ferraro (2000), shows that an ice-slurry solution is better than an R404a as refrigerant fluid, when considering a particular heat exchanger. The heat exchanger used is of a finned tube type with an in-line tube bank. Results show that with the same heat power ice-slurry entropy variation is lower than that given by R404a.
2002
Fifth IIR Workshop on Ice Slurries
Fifth IIR WORKSHOP ON ICE SLURRIES,
STOCKHOLM
30-31 may
A. GAGLIARDI; G. GRAZZINI
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/9839
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