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Flow Analysis of Open Cycle OTEC's Flash Evaporator Using CFD Analysis
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CFD를 사용한 개방형 해수온도차발전 플래시 증발기 성능 해석

논문 기본 정보

Type
Academic journal
Author
Ji-Won Yoon (선박해양플랜트연구소) Ho-Saeng Lee (선박해양플랜트연구소) Jeong-Hyun Moon (선박해양플랜트연구소) Se-Kyu Kim (선박해양플랜트연구소) Ho Ji (선박해양플랜트연구소)
Journal
The Korean Society For Power System Engineering Journal of Power System Engineering Vol.27 No.4 KCI Accredited Journals
Published
2023.8
Pages
47 - 55 (9page)
DOI
10.9726/kspse.2023.27.4.047

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Topic
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Background
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Method
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Result
Flow Analysis of Open Cycle OTEC's Flash Evaporator Using CFD Analysis
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Abstract· Keywords

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Open cycle OTEC (Ocean Thermal Energy Conversion), is a method of making electricity by rotating turbine with the surface seawater itself as the working fluid. In order to carry out seawater evaporation at room temperature, it uses a flash evaporator, which is a low-pressure maintained chamber which vaporizes seawater at low saturation temperature condition. It is an important factor of the OTEC cycle efficiency, because the amount of vaporized seawater directly relates to the net output of the cycle. The evaporator is carried out using Ansys FLUENT. For the result, operating condition with spray angle over 60 degrees, low evaporator pressure, high evaporator and seawater temperature turned out to be the optimal performance conditions. For the ideal operating condition, evaporation ratio of 1.83% was drawn, and the least showed 1.43%, which is a 28% difference in evaporating performance.
#분산 상 모델 #플래시 증발 #유동해석 #해수온도차발전 #분사 노즐 #Discrete Phase Model #Flash Evaporation #Flow Analysis #Ocean Thermal Energy Conversion(OTEC) #Spray Nozzle

Contents

초록
Abstract
1. 서론
2. 개방형 해수온도차발전 개요
3. 플래시 증발 유동해석
4. 해석 결과
5. 결론
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