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- W2766868045 endingPage "1187" @default.
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- W2766868045 abstract "In order to investigate the condensation heat transfer and pressure drop characteristics in tube-side flow of spiral wound heat exchanger (SWHE), a computational model based on two-fluid multiphase model, k-ε turbulence model and thermal phase change model was established considering the gravity and surface tension. Also, a calculation formula for mean interfacial length between vapor phase and liquid phase was deduced and the wall contact angle was discussed. Based on the above model, numerical simulations were carried out on the condensation flow and heat transfer for propane upward flow in a spiral pipe. Compared with experimental data, it shows that the errors for the simulation results based on the new model are within ±15% under different operating parameters. Meanwhile, the heat transfer coefficient and frictional pressure drop are mainly influenced by vapor quality, mass flux and saturation pressure while the heat flux almost does not affect them. Comparing with the existing correlations, the improved correlations based on Boyko’s correlation and Fuchs’s correlation have been developed to predict condensation heat transfer coefficients and frictional pressure drop. These results will provide some constructive instructions for the understanding of condensation heat transfer and pressure drop characteristics in the spiral pipe, as well as the design and prediction of condensation heat transfer and pressure drop performance in SWHE." @default.
- W2766868045 created "2017-11-10" @default.
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- W2766868045 date "2018-02-01" @default.
- W2766868045 modified "2023-10-12" @default.
- W2766868045 title "Numerical study on the flow and heat transfer characteristics of forced convective condensation with propane in a spiral pipe" @default.
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- W2766868045 doi "https://doi.org/10.1016/j.ijheatmasstransfer.2017.10.080" @default.
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