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Modeling of Hybrid Cooling Systems for Shipboard Application

[+] Author Affiliations
Tao Cao, Hoseong Lee, Yunho Hwang, Reinhard Radermacher

University of Maryland, College Park, MD

Paper No. ES2014-6303, pp. V002T10A001; 6 pages
  • ASME 2014 8th International Conference on Energy Sustainability collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology
  • Volume 2: Economic, Environmental, and Policy Aspects of Alternate Energy; Fuels and Infrastructure, Biofuels and Energy Storage; High Performance Buildings; Solar Buildings, Including Solar Climate Control/Heating/Cooling; Sustainable Cities and Communities, Including Transportation; Thermofluid Analysis of Energy Systems, Including Exergy and Thermoeconomics
  • Boston, Massachusetts, USA, June 30–July 2, 2014
  • Conference Sponsors: Advanced Energy Systems Division
  • ISBN: 978-0-7918-4587-5
  • Copyright © 2014 by ASME


A vapor compression cycle (VCC) powered by the diesel generator is typically used in space cooling for the shipboard application. This system consumes large amounts of electricity. In an effort to reduce fuel consumption for cooling, two solar powered hybrid cooling system options are proposed. The first one is to use VCC with solar photovoltaic (PV) panels and the second one is to use absorption cycle (ABC) with evacuated thermal collectors (ETC). Control strategies have been set up for all three scenarios to provide space cooling for guest rooms on a cruise ship. In addition, for the PV powered VCC case, the optimum battery storage system size was investigated. It was found that the optimized PV system could reduce yearly fuel consumption and life time greenhouse gas (GHG) emission by 98% and 93%, respectively. The ETC powered ABC system would reduce the fuel consumption and GHG emission by 78% and 75%, respectively. The cost analysis indicates that the ETC system has lowest life time cost, which is 28% of the baseline scenario and 23% of the PV system.

Copyright © 2014 by ASME



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