Study of In-Tube Evaporation Heat Transfer of Carbon Dioxide.
Study of In-Tube Evaporation Heat Transfer of Carbon
Dioxide.
(424 K)
Sawant, N. N.; Kim, M. S.; Payne, W. V.; Domanski, P.
A.; Hwang, Y. W.
ICR0038;
Refrigeration International Congress, 21st IIR.
(IRC2003). Technical Session B1-8: A New Old
Refrigerant: Carbon Dioxide - Heat Transfer.
Proceedings. August 17-22, 2003, Washington, DC, 2004.
Keywords:
carbon monoxide; heat transfer; evaporation;
uncertainty; refrigerants
Abstract:
The evaporative heat transfer characteristics of carbon
dioxide in an 8.0 mm ID smooth stainless steel tube were
measured. Data were collected in a concentric tube heat
exchanger heated by water in the annulus with carbon
dioxide in the central tube. Data have been collected
over a range of temperature (5oC to 25oC), mass flux
(250 kg/m2s to 1000 kg/m2s) and heat flux (3 kW/m2 to 15
kW/m2). A Wilson Plot technique was used to correlate
the in-tube local heat transfer coefficient of carbon
dioxide. Results have been interpreted by relating the
heat transfer coefficient to quality at various
evaporation temperatures and various mass fluxes.
