TY - GEN
T1 - Numerical simulation on characteristics of cooling heat transfer and pressure drop of supercritical pressure fluids flowing in a chevron-type plate heat exchanger
AU - Yamasaki, Yuki
AU - Watanabe, Naoto
AU - Miyata, Kazushi
AU - Mori, Hideo
AU - Hamamoto, Yoshinori
AU - Umezawa, Shuichi
AU - Sugita, Katsuhiko
AU - Kurose, Kizuku
N1 - Publisher Copyright:
© 2019 International Institute of Refrigeration. All rights reserved.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2019
Y1 - 2019
N2 - In industrial fields, heat source over 130°C are widely needed, and for this the development of industrial high-temperature heat pump systems has been promoted. For the heat release process in such the heat pump systems, the authors have studied on cooling heat transfer of refrigerants at supercritical pressures in chevron-type plate heat exchangers (PHEs). In this study, to establish a simulation model which estimates the cooling heat transfer coefficient of supercritical pressure refrigerants flowing in the chevron-type PHEs, a CFD analysis was carried out. The results of this analysis agreed well with the experimental results including the data in pseudocritical region where the physical properties of the refrigerant change rapidly with temperature. From the simulation results, characteristics of temperature distribution and heat flux distribution in the chevron PHE were discussed.
AB - In industrial fields, heat source over 130°C are widely needed, and for this the development of industrial high-temperature heat pump systems has been promoted. For the heat release process in such the heat pump systems, the authors have studied on cooling heat transfer of refrigerants at supercritical pressures in chevron-type plate heat exchangers (PHEs). In this study, to establish a simulation model which estimates the cooling heat transfer coefficient of supercritical pressure refrigerants flowing in the chevron-type PHEs, a CFD analysis was carried out. The results of this analysis agreed well with the experimental results including the data in pseudocritical region where the physical properties of the refrigerant change rapidly with temperature. From the simulation results, characteristics of temperature distribution and heat flux distribution in the chevron PHE were discussed.
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U2 - 10.18462/iir.icr.2019.1757
DO - 10.18462/iir.icr.2019.1757
M3 - Conference contribution
AN - SCOPUS:85082654320
T3 - Refrigeration Science and Technology
SP - 2798
EP - 2804
BT - ICR 2019 - 25th IIR International Congress of Refrigeration
A2 - Minea, Vasile
PB - International Institute of Refrigeration
T2 - 25th IIR International Congress of Refrigeration, ICR 2019
Y2 - 24 August 2019 through 30 August 2019
ER -