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Cycle Analysis of a New Engine design

dc.contributor.advisorCadou, Christopheren_US
dc.contributor.authorAttar, Wiamen_US
dc.date.accessioned2017-06-22T06:06:10Z
dc.date.available2017-06-22T06:06:10Z
dc.date.issued2017en_US
dc.identifierhttps://doi.org/10.13016/M2ZK4Q
dc.identifier.urihttp://hdl.handle.net/1903/19407
dc.description.abstractThis thesis investigates a new externally heated engine design being developed by Soony Systems Inc. to serve as the prime mover in a residential-scale combined heat and power system. This is accomplished by developing a thermodynamic model for the engine and sweeping through the design parameter space in order to identify designs that maximize power output, efficiency, and brake mean effective pressure (BMEP). It was discovered that the original engine design was flawed so a new design was proposed and analyzed. The thermodynamic model was developed in four stages. The first model was quasi-static while the other three were time-dependent and used increasingly realistic models of the heat exchangers. For the range of design parameters investigated here, the peak power output is 6.8 kW, the peak efficiency is approximately 60%, and the peak BMEP is 389 kPa. These performance levels are compared to those of other closed-cycle engines. The results suggest that the Soony engine has the potential to be more efficient than Stirlings because it more closely approximates the Carnot cycle, but this comes at the cost of significantly lower BMEP (389 kPa vs. 2,760 kPa for the SOLO Stirling engine).en_US
dc.language.isoenen_US
dc.titleCycle Analysis of a New Engine designen_US
dc.typeThesisen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.contributor.departmentAerospace Engineeringen_US
dc.subject.pqcontrolledEngineeringen_US


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