CHEN Shuangshuang, JI Xin, LIN Wensheng. Experiments on phase-change heat transfer of propane intermediate fluid vaporizer[J]. CIESC Journal, 2015, (S2): 192-197.
CHEN Shuangshuang, JI Xin, LIN Wensheng. Experiments on phase-change heat transfer of propane intermediate fluid vaporizer[J]. CIESC Journal, 2015, (S2): 192-197.DOI: 10.11949/j.issn.0438-1157.20151091.
To simulate the heat process of propane in the intermediate fluid vaporizer(IFV)
the test rig has been designed and built.Using water as the heat source
cold nitrogen as cold source
the boiling heat transfer and condensing heat transfer experiments of propane were conducted in two smooth concentric circular tubes.Inlet water temperature
water mass flow rate and gradient of tubes were analyzed to see how those factors affeted.With the increase of heat flux
the boiling heat transfer coefficient of propane increases and the tendency goes gentle.The boiling heat transfer coefficient is bigger in declining tubes.The experimental results show the same trend with prediction results from Cooper equation
with 30% of deviation.With the increase of wall sub-cooling
the condensation heat transfer coefficient of propane decreases and the tendency becomes gentle.The condensation heat transfer coefficient of propane is slightly bigger in declining tubes.The experimental results show the same trend with prediction results from Nusselt equation