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http://dx.doi.org/10.5916/jkosme.2012.36.8.1030

CFD Performance Analysis and Design of a 8kW Class Radial Inflow Turbine for Ocean Thermal Energy Conversion Using a Working Fluid of Ammonia  

Mo, Jang-Oh (호주 University of Adelaide)
Cha, Sang-Won (한국해양대학교 대학원 기관시스템공학과)
Kim, You-Taek (한국해양대학교 기관시스템공학부)
Lim, Tae-Woo (한국해양대학교 기관공학부)
Lee, Young-Ho (한국해양대학교 기계에너지시스템공학부)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.36, no.8, 2012 , pp. 1030-1035 More about this Journal
Abstract
In this research, we analysed design and CFD analysis of an inflow radial turbine for OTEC with an output power of 8kW using an working fluid of ammonia. The inflow radial turbine consists of scroll casing, vain nozzle with 18 blade numbers and rotor blade with 13 blade numbers. Mass flow rate, and inlet temperature are 0.5kg/s and $25^{\circ}C$ respectively, and variable rotational speeds were applied between 12,000 and 36,000 with 3,000 rpm intervals. As the results according to the rotational speeds, the designed speed is 24,000 rpm where maximum efficiency exists. The maximum efficiency and output power are 88.66% and 8.52kW, respectively. Through this study, we expect that the analysed results will be used as the design material for the composition of the turbine optimal design parameters corresponding to the target output power under various working material conditions.
Keywords
OTEC (Ocean Thermal Energy Conversion); Radial turbine; Turbine Efficiency; CFD(Computational Fluid Dynamics); Inflow; working fluid of ammonia;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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