Simulation of a power station's condensate pumping system in view of improving its efficiency

 

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dc.contributor.advisor Vicatos, George en_ZA
dc.contributor.author Meyburgh, Pieter Leonardo Du Toit en_ZA
dc.date.accessioned 2014-11-05T03:50:37Z
dc.date.available 2014-11-05T03:50:37Z
dc.date.issued 2014 en_ZA
dc.identifier.citation Meyburgh, P. 2014. Simulation of a power station's condensate pumping system in view of improving its efficiency. University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/9140
dc.description Includes bibliographical references. en_ZA
dc.description.abstract With increasing environmental awareness, higher electricity production costs, and a shortage in electricity supply to the South African grid, increased focus has been placed on the efficiency of power plants, and the improvement thereof. On the majority of the Condensate Extraction Pumps (CEPs) installed in power stations, the flow control is implemented by conventional valve throttling of the discharge valve of these pumps. This type of flow control is uneconomical, as more than 30 of the flow – and the pressure – that can be supplied by the CEPs, is throttled under normal operating conditions. As an energy-efficiency improvement measure, many sources recommend retrofitting of this flow control mechanism with variable speed flow control; but as different applications have different requirements, a need was identified to develop a systematic approach that would assist in determining the feasibility of a variable speed drive (VSD) retrofit. In order to develop this approach, a case study was conducted on an Eskom coal-fired power station – comparing different flow-control techniques with the aid of efficiency calculations, a simulated model, and an economic evaluation. In this case study, an electrical VSD was identified as a feasible retrofit, with an energy saving of 34.6 achievable in pump power consumption at full load conditions. en_ZA
dc.language.iso eng en_ZA
dc.title Simulation of a power station's condensate pumping system in view of improving its efficiency en_ZA
dc.type Master Thesis
uct.type.publication Research en_ZA
uct.type.resource Thesis en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Engineering and the Built Environment
dc.publisher.department Department of Mechanical Engineering en_ZA
dc.type.qualificationlevel Masters
dc.type.qualificationname MEng en_ZA
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Meyburgh, P. L. D. T. (2014). <i>Simulation of a power station's condensate pumping system in view of improving its efficiency</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering. Retrieved from http://hdl.handle.net/11427/9140 en_ZA
dc.identifier.chicagocitation Meyburgh, Pieter Leonardo Du Toit. <i>"Simulation of a power station's condensate pumping system in view of improving its efficiency."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering, 2014. http://hdl.handle.net/11427/9140 en_ZA
dc.identifier.vancouvercitation Meyburgh PLDT. Simulation of a power station's condensate pumping system in view of improving its efficiency. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering, 2014 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/9140 en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Meyburgh, Pieter Leonardo Du Toit AB - With increasing environmental awareness, higher electricity production costs, and a shortage in electricity supply to the South African grid, increased focus has been placed on the efficiency of power plants, and the improvement thereof. On the majority of the Condensate Extraction Pumps (CEPs) installed in power stations, the flow control is implemented by conventional valve throttling of the discharge valve of these pumps. This type of flow control is uneconomical, as more than 30 of the flow – and the pressure – that can be supplied by the CEPs, is throttled under normal operating conditions. As an energy-efficiency improvement measure, many sources recommend retrofitting of this flow control mechanism with variable speed flow control; but as different applications have different requirements, a need was identified to develop a systematic approach that would assist in determining the feasibility of a variable speed drive (VSD) retrofit. In order to develop this approach, a case study was conducted on an Eskom coal-fired power station – comparing different flow-control techniques with the aid of efficiency calculations, a simulated model, and an economic evaluation. In this case study, an electrical VSD was identified as a feasible retrofit, with an energy saving of 34.6 achievable in pump power consumption at full load conditions. DA - 2014 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2014 T1 - Simulation of a power station's condensate pumping system in view of improving its efficiency TI - Simulation of a power station's condensate pumping system in view of improving its efficiency UR - http://hdl.handle.net/11427/9140 ER - en_ZA


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