Modeling hybrid solar gas-turbine power plants: Thermodynamic projection of annual performance and emissions
•Performance and consumption of a hybrid solar gas-turbine power plant is analyzed.•A Thermodynamic model developed by us is used.•Real meteorological data and parameters from an existing installation are taken.•Numerical estimations for overall thermal efficiency are presented•Margins for improveme...
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| Veröffentlicht in: | Energy conversion and management 2017-02, Vol.134, p.314-326 |
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| creator | Merchán, R.P. Santos, M.J. Reyes-Ramírez, I. Medina, A. Calvo Hernández, A. |
| description | •Performance and consumption of a hybrid solar gas-turbine power plant is analyzed.•A Thermodynamic model developed by us is used.•Real meteorological data and parameters from an existing installation are taken.•Numerical estimations for overall thermal efficiency are presented•Margins for improvement for each plant subsystem are analyzed in annual terms.
The annual performance, fuel consumption and emissions of a hybrid thermosolar central tower Brayton plant is analyzed in yearly terms by means of a thermodynamic model. The model constitutes a step forward over a previously developed one, that was satisfactorily validated for fixed solar irradiance and ambient temperature. It is general and easily applicable to different plant configurations and power output ranges. The overall system is assumed as formed by three subsystems linked by heat exchangers: solar collector, combustion chamber, and recuperative Brayton gas-turbine. Subsystem models consider all the main irreversibility sources existing in real installations. This allows to compare the performance of a real plant with that it would have in ideal conditions, without losses. Furthermore, the improved version of the model is capable to consider fluctuating values of solar irradiance and ambient temperature. Numerical calculations are presented taking particular parameters from a real installation and actual meteorological data. Several cases are analyzed, including plant operation in hybrid or pure combustion modes, with or without recuperation. Previous studies concluded that this technology is interesting from the ecological viewpoint, but that to be compelling for commercialization, global thermal efficiency should be improved (currently yearly averaged thermal efficiency is about 30% for recuperative plants). We analyze the margin for improvement for each plant subsystem, and it is concluded that, the Brayton heat engine, by far, is the key element to improve overall thermal efficiency. Numerical estimations of achievable efficiencies are presented for a particular plant and real meteorological conditions. |
| doi_str_mv | 10.1016/j.enconman.2016.12.044 |
| format | Article |
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The annual performance, fuel consumption and emissions of a hybrid thermosolar central tower Brayton plant is analyzed in yearly terms by means of a thermodynamic model. The model constitutes a step forward over a previously developed one, that was satisfactorily validated for fixed solar irradiance and ambient temperature. It is general and easily applicable to different plant configurations and power output ranges. The overall system is assumed as formed by three subsystems linked by heat exchangers: solar collector, combustion chamber, and recuperative Brayton gas-turbine. Subsystem models consider all the main irreversibility sources existing in real installations. This allows to compare the performance of a real plant with that it would have in ideal conditions, without losses. Furthermore, the improved version of the model is capable to consider fluctuating values of solar irradiance and ambient temperature. Numerical calculations are presented taking particular parameters from a real installation and actual meteorological data. Several cases are analyzed, including plant operation in hybrid or pure combustion modes, with or without recuperation. Previous studies concluded that this technology is interesting from the ecological viewpoint, but that to be compelling for commercialization, global thermal efficiency should be improved (currently yearly averaged thermal efficiency is about 30% for recuperative plants). We analyze the margin for improvement for each plant subsystem, and it is concluded that, the Brayton heat engine, by far, is the key element to improve overall thermal efficiency. Numerical estimations of achievable efficiencies are presented for a particular plant and real meteorological conditions.</description><identifier>ISSN: 0196-8904</identifier><identifier>EISSN: 1879-2227</identifier><identifier>DOI: 10.1016/j.enconman.2016.12.044</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Ambient temperature ; Annual performance records ; Combustion ; Combustion chambers ; Commercialization ; Data processing ; Ecological monitoring ; Emissions ; Gas turbine engines ; Gas turbines ; Gas-fired power plants ; Heat engines ; Heat exchangers ; Irradiance ; Power plants ; Solar collectors ; Solar power ; Thermodynamic efficiency ; Thermodynamic models ; Thermodynamic simulation ; Thermodynamics ; Thermosolar hybrid power plants ; Variation ; Yearly fuel consumption and emissions</subject><ispartof>Energy conversion and management, 2017-02, Vol.134, p.314-326</ispartof><rights>2016 Elsevier Ltd</rights><rights>Copyright Elsevier Science Ltd. Feb 15, 2017</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c381t-4d2c7794949460e95389f3e28ed1652d095e2eca355d05f56a725e652e3ae70b3</citedby><cites>FETCH-LOGICAL-c381t-4d2c7794949460e95389f3e28ed1652d095e2eca355d05f56a725e652e3ae70b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0196890416311372$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Merchán, R.P.</creatorcontrib><creatorcontrib>Santos, M.J.</creatorcontrib><creatorcontrib>Reyes-Ramírez, I.</creatorcontrib><creatorcontrib>Medina, A.</creatorcontrib><creatorcontrib>Calvo Hernández, A.</creatorcontrib><title>Modeling hybrid solar gas-turbine power plants: Thermodynamic projection of annual performance and emissions</title><title>Energy conversion and management</title><description>•Performance and consumption of a hybrid solar gas-turbine power plant is analyzed.•A Thermodynamic model developed by us is used.•Real meteorological data and parameters from an existing installation are taken.•Numerical estimations for overall thermal efficiency are presented•Margins for improvement for each plant subsystem are analyzed in annual terms.
The annual performance, fuel consumption and emissions of a hybrid thermosolar central tower Brayton plant is analyzed in yearly terms by means of a thermodynamic model. The model constitutes a step forward over a previously developed one, that was satisfactorily validated for fixed solar irradiance and ambient temperature. It is general and easily applicable to different plant configurations and power output ranges. The overall system is assumed as formed by three subsystems linked by heat exchangers: solar collector, combustion chamber, and recuperative Brayton gas-turbine. Subsystem models consider all the main irreversibility sources existing in real installations. This allows to compare the performance of a real plant with that it would have in ideal conditions, without losses. Furthermore, the improved version of the model is capable to consider fluctuating values of solar irradiance and ambient temperature. Numerical calculations are presented taking particular parameters from a real installation and actual meteorological data. Several cases are analyzed, including plant operation in hybrid or pure combustion modes, with or without recuperation. Previous studies concluded that this technology is interesting from the ecological viewpoint, but that to be compelling for commercialization, global thermal efficiency should be improved (currently yearly averaged thermal efficiency is about 30% for recuperative plants). We analyze the margin for improvement for each plant subsystem, and it is concluded that, the Brayton heat engine, by far, is the key element to improve overall thermal efficiency. Numerical estimations of achievable efficiencies are presented for a particular plant and real meteorological conditions.</description><subject>Ambient temperature</subject><subject>Annual performance records</subject><subject>Combustion</subject><subject>Combustion chambers</subject><subject>Commercialization</subject><subject>Data processing</subject><subject>Ecological monitoring</subject><subject>Emissions</subject><subject>Gas turbine engines</subject><subject>Gas turbines</subject><subject>Gas-fired power plants</subject><subject>Heat engines</subject><subject>Heat exchangers</subject><subject>Irradiance</subject><subject>Power plants</subject><subject>Solar collectors</subject><subject>Solar power</subject><subject>Thermodynamic efficiency</subject><subject>Thermodynamic models</subject><subject>Thermodynamic simulation</subject><subject>Thermodynamics</subject><subject>Thermosolar hybrid power plants</subject><subject>Variation</subject><subject>Yearly fuel consumption and emissions</subject><issn>0196-8904</issn><issn>1879-2227</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNqFkMlOwzAQhi0EEqXwCsgS5wQvcRZOoIpNKuJSzpZrT1pHiR3sFNS3x1XhjOYwmpl_tg-ha0pySmh52-XgtHeDcjlLcU5ZToriBM1oXTUZY6w6RTNCmzKrG1Kco4sYO0IIF6Scof7NG-it2-Dtfh2swdH3KuCNitm0C2vrAI_-GwIee-WmeIdXWwiDN3unBqvxGHwHerLeYd9i5dxO9XiE0PqQ7tGQUgbDYGNMkniJzlrVR7j69XP08fS4Wrxky_fn18XDMtO8plNWGKarqikOVhJoBK-blgOrwdBSMEMaAQy04kIYIlpRqooJSBXgCiqy5nN0c5ybzvvcQZxk53fBpZWSEVYUNaOcJFV5VOngYwzQyjHYQYW9pEQeyMpO_pGVB7KSMpnIpsb7YyOkH74sBBm1TUowNiQY0nj734gfQbuGvQ</recordid><startdate>20170215</startdate><enddate>20170215</enddate><creator>Merchán, R.P.</creator><creator>Santos, M.J.</creator><creator>Reyes-Ramírez, I.</creator><creator>Medina, A.</creator><creator>Calvo Hernández, A.</creator><general>Elsevier Ltd</general><general>Elsevier Science Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>7TB</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope><scope>SOI</scope></search><sort><creationdate>20170215</creationdate><title>Modeling hybrid solar gas-turbine power plants: Thermodynamic projection of annual performance and emissions</title><author>Merchán, R.P. ; Santos, M.J. ; Reyes-Ramírez, I. ; Medina, A. ; Calvo Hernández, A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c381t-4d2c7794949460e95389f3e28ed1652d095e2eca355d05f56a725e652e3ae70b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Ambient temperature</topic><topic>Annual performance records</topic><topic>Combustion</topic><topic>Combustion chambers</topic><topic>Commercialization</topic><topic>Data processing</topic><topic>Ecological monitoring</topic><topic>Emissions</topic><topic>Gas turbine engines</topic><topic>Gas turbines</topic><topic>Gas-fired power plants</topic><topic>Heat engines</topic><topic>Heat exchangers</topic><topic>Irradiance</topic><topic>Power plants</topic><topic>Solar collectors</topic><topic>Solar power</topic><topic>Thermodynamic efficiency</topic><topic>Thermodynamic models</topic><topic>Thermodynamic simulation</topic><topic>Thermodynamics</topic><topic>Thermosolar hybrid power plants</topic><topic>Variation</topic><topic>Yearly fuel consumption and emissions</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Merchán, R.P.</creatorcontrib><creatorcontrib>Santos, M.J.</creatorcontrib><creatorcontrib>Reyes-Ramírez, I.</creatorcontrib><creatorcontrib>Medina, A.</creatorcontrib><creatorcontrib>Calvo Hernández, A.</creatorcontrib><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><jtitle>Energy conversion and management</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Merchán, R.P.</au><au>Santos, M.J.</au><au>Reyes-Ramírez, I.</au><au>Medina, A.</au><au>Calvo Hernández, A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Modeling hybrid solar gas-turbine power plants: Thermodynamic projection of annual performance and emissions</atitle><jtitle>Energy conversion and management</jtitle><date>2017-02-15</date><risdate>2017</risdate><volume>134</volume><spage>314</spage><epage>326</epage><pages>314-326</pages><issn>0196-8904</issn><eissn>1879-2227</eissn><abstract>•Performance and consumption of a hybrid solar gas-turbine power plant is analyzed.•A Thermodynamic model developed by us is used.•Real meteorological data and parameters from an existing installation are taken.•Numerical estimations for overall thermal efficiency are presented•Margins for improvement for each plant subsystem are analyzed in annual terms.
The annual performance, fuel consumption and emissions of a hybrid thermosolar central tower Brayton plant is analyzed in yearly terms by means of a thermodynamic model. The model constitutes a step forward over a previously developed one, that was satisfactorily validated for fixed solar irradiance and ambient temperature. It is general and easily applicable to different plant configurations and power output ranges. The overall system is assumed as formed by three subsystems linked by heat exchangers: solar collector, combustion chamber, and recuperative Brayton gas-turbine. Subsystem models consider all the main irreversibility sources existing in real installations. This allows to compare the performance of a real plant with that it would have in ideal conditions, without losses. Furthermore, the improved version of the model is capable to consider fluctuating values of solar irradiance and ambient temperature. Numerical calculations are presented taking particular parameters from a real installation and actual meteorological data. Several cases are analyzed, including plant operation in hybrid or pure combustion modes, with or without recuperation. Previous studies concluded that this technology is interesting from the ecological viewpoint, but that to be compelling for commercialization, global thermal efficiency should be improved (currently yearly averaged thermal efficiency is about 30% for recuperative plants). We analyze the margin for improvement for each plant subsystem, and it is concluded that, the Brayton heat engine, by far, is the key element to improve overall thermal efficiency. Numerical estimations of achievable efficiencies are presented for a particular plant and real meteorological conditions.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.enconman.2016.12.044</doi><tpages>13</tpages></addata></record> |
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| subjects | Ambient temperature Annual performance records Combustion Combustion chambers Commercialization Data processing Ecological monitoring Emissions Gas turbine engines Gas turbines Gas-fired power plants Heat engines Heat exchangers Irradiance Power plants Solar collectors Solar power Thermodynamic efficiency Thermodynamic models Thermodynamic simulation Thermodynamics Thermosolar hybrid power plants Variation Yearly fuel consumption and emissions |
| title | Modeling hybrid solar gas-turbine power plants: Thermodynamic projection of annual performance and emissions |
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