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Impact on heat rate and subsequent emissions due to varying operation of coal fired power plants
Energy mix modellers often use a constant emissions factor model, which more or less implies a constant heat rate, when trying to show the emissions reduction benefits of integrating renewable power generation system on the grid. This approach does not consider the fact that there is a deterioration...
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| Format: | Thesis |
| Language: | English |
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Department of Mechanical Engineering
2020
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| _version_ | 1867614090227089408 |
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| access_status_str | Open Access |
| author | Akpan, Patrick Udeme-Obong |
| author2 | Fuls, Wim |
| author_browse | Akpan, Patrick Udeme-Obong Fuls, Wim |
| author_facet | Fuls, Wim Akpan, Patrick Udeme-Obong |
| author_sort | Akpan, Patrick Udeme-Obong |
| collection | Thesis |
| description | Energy mix modellers often use a constant emissions factor model, which more or less implies a constant heat rate, when trying to show the emissions reduction benefits of integrating renewable power generation system on the grid. This approach does not consider the fact that there is a deterioration in the heat rate with load for the Coal Fired Power Plants that need to accommodate the additional renewable supply. If varying heat rate were to be included in a study, it is often limited to plant specific cases. This PhD presents a novel Variable Turbine Cycle Heat Rate (V-TCHR) model for predicting the part load Turbine cycle heat rate (TCHR) response of various Coal Fired Power Plant (CFPP) architectures, without detail knowledge of the entire steam cycle parameters. A total of 192 process models of representative CFPP architectures were developed using a Virtual Plant software. The models had different combinations of the degree of reheat; the throttle temperature; throttle pressure; and condenser cooling technology. The part load response of all the models were simulated using the software. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/31647 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:46:30.808Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Department of Mechanical Engineering |
| publisherStr | Department of Mechanical Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/31647 Impact on heat rate and subsequent emissions due to varying operation of coal fired power plants Akpan, Patrick Udeme-Obong Fuls, Wim Coal fired Power Plants Heat rates CO2 emissions Renewable Power Integration Power Plant modelling and simulation Energy Mix Modelling Energy mix modellers often use a constant emissions factor model, which more or less implies a constant heat rate, when trying to show the emissions reduction benefits of integrating renewable power generation system on the grid. This approach does not consider the fact that there is a deterioration in the heat rate with load for the Coal Fired Power Plants that need to accommodate the additional renewable supply. If varying heat rate were to be included in a study, it is often limited to plant specific cases. This PhD presents a novel Variable Turbine Cycle Heat Rate (V-TCHR) model for predicting the part load Turbine cycle heat rate (TCHR) response of various Coal Fired Power Plant (CFPP) architectures, without detail knowledge of the entire steam cycle parameters. A total of 192 process models of representative CFPP architectures were developed using a Virtual Plant software. The models had different combinations of the degree of reheat; the throttle temperature; throttle pressure; and condenser cooling technology. The part load response of all the models were simulated using the software. 2020-04-21T11:45:49Z 2020-04-21T11:45:49Z 2019 2020-04-21T11:44:46Z Doctoral Thesis Doctoral PhD https://hdl.handle.net/11427/31647 eng application/pdf Department of Mechanical Engineering Faculty of Engineering and the Built Environment |
| spellingShingle | Coal fired Power Plants Heat rates CO2 emissions Renewable Power Integration Power Plant modelling and simulation Energy Mix Modelling Akpan, Patrick Udeme-Obong Impact on heat rate and subsequent emissions due to varying operation of coal fired power plants |
| thesis_degree_str | Doctoral |
| title | Impact on heat rate and subsequent emissions due to varying operation of coal fired power plants |
| title_full | Impact on heat rate and subsequent emissions due to varying operation of coal fired power plants |
| title_fullStr | Impact on heat rate and subsequent emissions due to varying operation of coal fired power plants |
| title_full_unstemmed | Impact on heat rate and subsequent emissions due to varying operation of coal fired power plants |
| title_short | Impact on heat rate and subsequent emissions due to varying operation of coal fired power plants |
| title_sort | impact on heat rate and subsequent emissions due to varying operation of coal fired power plants |
| topic | Coal fired Power Plants Heat rates CO2 emissions Renewable Power Integration Power Plant modelling and simulation Energy Mix Modelling |
| url | https://hdl.handle.net/11427/31647 |
| work_keys_str_mv | AT akpanpatrickudemeobong impactonheatrateandsubsequentemissionsduetovaryingoperationofcoalfiredpowerplants |