Research methods and performance analysis for the moderately high temperature refrigerant

2008 ◽  
Vol 51 (8) ◽  
pp. 1087-1095 ◽  
Author(s):  
Lin Shi ◽  
Cheng Zan
Keyword(s):  
High Temperature ◽  
Performance Analysis ◽  
Research Methods ◽  
And Performance ◽  
Moderately High Temperature

scholarly journals Design and Performance Analysis of a Supercritical Carbon Dioxide Heat Exchanger

2020 ◽  
Vol 10 (13) ◽  
pp. 4545 ◽  
Author(s):  
Han Seo ◽  
Jae Eun Cha ◽  
Jaemin Kim ◽  
Injin Sah ◽  
Yong-Wan Kim
Keyword(s):  
Power Generation ◽  
High Pressure ◽  
High Temperature ◽  
Heat Exchanger ◽  
Performance Analysis ◽  
Material Selection ◽  
Tube Bundle ◽  
Outlet Temperature ◽  
Tubular Type ◽  
And Performance

This paper presents a preliminary design and performance analysis of a supercritical CO2 (SCO2) heat exchanger for an SCO2 power generation system. The purpose of designing a SCO2 heat exchanger is to provide a high-temperature and high-pressure heat exchange core technology for advanced SCO2 power generation systems. The target outlet temperature and pressure for the SCO2 heat exchanger were 600 °C and 200 bar, respectively. A tubular type with a staggered tube bundle was selected as the SCO2 heat exchanger, and liquefied petroleum gas (LPG) and air were selected as heat sources. The design of the heat exchanger was based on the material selection and available tube specification. Preliminary performance evaluation of the SCO2 heat exchanger was conducted using an in-house code, and three-dimensional flow and thermal stress analysis were performed to verify the tube’s integrity. The simulation results showed that the tubular type heat exchanger can endure high-temperature and high-pressure conditions under an SCO2 environment.

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