Show simple item record

dc.contributor.advisorDincer, Ibrahim
dc.contributor.authorHoque, Shaikh Md Emdadul
dc.date.accessioned2011-11-28T15:17:41Z
dc.date.accessioned2022-03-29T16:33:45Z
dc.date.available2011-11-28T15:17:41Z
dc.date.available2022-03-29T16:33:45Z
dc.date.issued2011-08-01
dc.identifier.urihttps://hdl.handle.net/10155/194
dc.description.abstractThis thesis research aims to develop an improved, efficient, low-capacity heat engine, running on an Organic Rankine Cycle (ORC) to generate power. The ORC is driven by low or moderate temperature heat sources, such as; renewable energy in the form of a hot gas derived from biomass/biogas/biofuel combustion streams, waste heat recovery, process heat recovery, etc. The ORC is more suitable and flexible than a conventional steam Rankine cycle, especially when it is applied to low power range. In this research, an extended surface heat exchanger is used to boil the pressurised working fluid, R134a, using a hot air as heat source. The expander used is a scroll type, coupled to a generator, which is able to produce maximum 1.6 kW output. Experimental data of the heat engine are measured under different operating conditions and utilized in the analysis and comparisons. Power generation under various conditions is investigated in order to determine the optimum performance parameters for the heat engine. The isentropic efficiency of the expander is found to be over 40% and reaches 80% for the improved expansion conditions. For the boiler, it is determined that the overall heat transfer coefficient multiplied with the heat transfer area is around 150 W/K. The energy efficiency of the experimental ORC is around 3% for hot air as the low temperature heat source at about 105oC where exergy efficiency reaches 22%, respectively.en
dc.description.sponsorshipUniversity of Ontario Institute of Technologyen
dc.language.isoenen
dc.subjectORCen
dc.subjectExperimental investigationen
dc.subjectRenewable energyen
dc.subjectLow temperature heat sourcesen
dc.subjectBiomassen
dc.titleExperimental investigation of an R134a based organic Rankine cycleen
dc.typeThesisen
dc.degree.levelMaster of Applied Science (MASc)en
dc.degree.disciplineMechanical Engineeringen


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record