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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/25824

Title: Theoretical analysis of cogeneration system for ships
Authors: 田文國;葉榮華;洪建明
Wen-Kuo Tien;Rong-Hua Yeh;Jen-Ming Hong
Contributors: NTOU:Department of Merchant Marine
Keywords: Cogeneration;Ship;Superheated;Saturated;Subcoole
Date: 2007-07
Issue Date: 2011-10-20T08:32:33Z
Publisher: Energy Conversion and Management
Abstract: Abstract:A methodology of assessing a cogeneration system on a ship is proposed. Given the mass flow rate of exhaust gas and cooling seawater and the inlet temperatures of the gas and seawater, the net power of this system can be obtained through an iterative method. The parameters of mass flow rate of exhaust gas, heat transfer area of boiler and condenser and outlet temperature of the gas from the boiler are considered. In the heating process, the boiler tubes contain superheated, saturated and subcooled ections. It is shown that the dimensionless saturated area of the boiler increases with exhaust mass flow rate, whereas the superheated region tends to decrease on increasing the mass flow rate of flue gas at a fixed exhaust temperature. As for the subcooled portion, no significant change is observed. The power consumption of the working fluid circulating pump increases as the exit exhaust temperature from the boiler decreases. In addition, the more net work the turbine produces, the lower is the outlet temperature of the working fluid in the condenser for a fixed mass flow rate of exhaust gas. The net output of the cogeneration system is larger for a larger mass flow rate and a smaller exit temperature of the exhaust.
Relation: 48(7), pp.1965-1974
URI: http://ntour.ntou.edu.tw/handle/987654321/25824
Appears in Collections:[商船學系] 期刊論文

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