유기랭킨사이클(ORC)을 위한 주전열면 열교환기의 채널 종횡비에 따른 유동 및 열전달 특성 = EFFECTS OF CHANNEL ASPECT RATIO ON FLOW AND HEAT TRANSFER CHARACTERISTICSOF PRIMARY SURFACE HEAT EXCHANGER FOR ORC

다국어 초록 (Multilingual Abstract)

A series of numerical simulation has been carried out to study thermo-hydraulic characteristics of a primary surface type heat exchanger, which is designed for the evaporator and condenser of a geothermal ORC. Working fluid is geothermal water at hot side and R-245fa, which is a refrigerant designed for ORC, at cold side. Aspect ratio of the channel and Reynolds number are considered as design parameters. Nusselt number is presented for the Reynolds number ranging from 50 to 150 and compared to existing correlations. The result shows that higher aspect ratio channel gives better heat transfer performance within the range of investigation.

목차 (Table of Contents)

• 1. 서론
• 2. 수치해석 기법
• 3. 결과 및 토의
• 4. 결론
• References

참고문헌 (Reference)

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