Development of high performance gas-liquid heat exchanger for heat pump using micro airfoil-shaped tubes

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420154
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Thermal engineering
• Research Institution: Kanazawa University
• Principal Investigator: Hajime Onishi 金沢大学, 機械工学系, 助教 (80334762)
• Co-Investigator(Kenkyū-buntansha): TADA YUKIO 金沢大学, 機械工学系, 准教授 (20179708)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 熱交換器 / 翼型チューブ / 熱伝達 / 気液二相流 / 相変化 / 冷凍空調 / ヒートポンプ

Outline of Final Research Achievements

The objectives of this study are further improvement of air-side heat transfer performance of the micro airfoil-shaped tube heat exchanger and enhancement of refrigerant-side heat transfer performance in the airfoil-shaped tube. Therefore, numerical simulation was performed on pressure drop and heat transfer performance of a heat exchanger using airfoil-shaped tubes having extended leading and trailing edge section with slits. Moreover, the developed phase change simulation was applied to investigate the heat transfer characteristics of refrigerant in a pump-driven looped minichannel having heating and cooling sections. The results revealed important guideline for developing high performance heat exchanger.

Free Research Field

熱工学