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Session: Poster session & Sponsor Exhibition
Session starts: Monday 07 October, 14:00

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Jang-Won Seo (INNOWILL, Corp.)
Sanghyuk Woo (INNOWILL, Corp.)
Chanyong Cho (INNOWILL, Corp.)
Byung-Sik Park (Korea Institute of Energy Research)

Abstract:
A wavy-corrugated primary surface heat exchanger was tested under two-phase flow conditions by using a water/r245fa as the hot and cold stream respectively. Performance experiments for a wavy-corrugated primary surface heat exchanger (PSHE) of high-performance and high-effectiveness on the technologies of high-density fin folding were performed in this study. The wavy-corrugated PSHE were experimentally investigated for Reynolds number in range of 1 ~ 600 under various flow conditions on the hot side and the cold side. The inlet temperatures of the hot side were conducted in a range of 70˚C ~ 80˚C while that of the cold side were fixed at 12˚C. The average heat transfer rate, heat transfer performance and pressure drop increases with increasing Reynolds number in all experiments. Increasing inlet temperature in the experiment range causes the heat transfer performance to increase while the pressure drop decrease slightly. The experimental correlations to the heat transfer coefficient and pressure drop factor as a function of the Reynolds number have been suggested for the wavy-corrugated PSHE.