This work investigates condensation of alternative refrigerants and mixtures inside horizontal smooth tubes with particular reference to heat transfer performances under stratifying and wavy flow regimes. Available new experimental data includes more than 900 points concerning both pure refrigerants (R32, R125, R134a) and mixtures (R32/R125, R32/R134a, R124/R22/R152a, R32/R125/R134a, R125/R143a/R134a). This data was plotted on the flow regime maps and compared against the computational heat transfer procedures for inside condensation. The data in gravity dominated regimes was processed by the Dobson et al. [1] model with a mean percentage deviation of 9.3%.
Inside condensation of new refrigerants mixtures
CAVALLINI, ALBERTO;DORETTI, LUCA;KLAMMSTEINER, NORBERT;LONGO, GIOVANNI ANTONIO;ROSSETTO, LUISA
1995
Abstract
This work investigates condensation of alternative refrigerants and mixtures inside horizontal smooth tubes with particular reference to heat transfer performances under stratifying and wavy flow regimes. Available new experimental data includes more than 900 points concerning both pure refrigerants (R32, R125, R134a) and mixtures (R32/R125, R32/R134a, R124/R22/R152a, R32/R125/R134a, R125/R143a/R134a). This data was plotted on the flow regime maps and compared against the computational heat transfer procedures for inside condensation. The data in gravity dominated regimes was processed by the Dobson et al. [1] model with a mean percentage deviation of 9.3%.Pubblicazioni consigliate
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