Simulation and parametric study on a novel modified Kalina cycle
To improve the utilization rate of hot dry rock resources, it is necessary to recover the energy of geothermal tailwater and improve the net output work. An improved ammonia-water power cycle is proposed based on the Kalina cycle. Taking the geothermal parameters of the Husavik Power Plant in Icelan...
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fttubitakaj:oai:journals.tubitak.gov.tr:earth-1054 2023-05-15T16:50:47+02:00 Simulation and parametric study on a novel modified Kalina cycle LEI, GUOBIN ZHOU, JUN SHI, SHENGCHAO QI, FUZHI XU, JIAWEI PENG, JIE ZHANG, JIAQI LIU, DONGXI MENG, QINGYAO 2021-01-01T08:00:00Z application/pdf https://journals.tubitak.gov.tr/earth/vol30/iss9/10 https://journals.tubitak.gov.tr/cgi/viewcontent.cgi?article=1054&context=earth unknown TÜBİTAK Academic Journals https://journals.tubitak.gov.tr/earth/vol30/iss9/10 https://journals.tubitak.gov.tr/cgi/viewcontent.cgi?article=1054&context=earth Turkish Journal of Earth Sciences Hot dry rock Kalina cycle power cycle ammonia-water mixture Earth Sciences text 2021 fttubitakaj 2022-10-19T17:23:35Z To improve the utilization rate of hot dry rock resources, it is necessary to recover the energy of geothermal tailwater and improve the net output work. An improved ammonia-water power cycle is proposed based on the Kalina cycle. Taking the geothermal parameters of the Husavik Power Plant in Iceland as the prototype (the water temperature of the geothermal well is 122 °C, and the tailwater temperature is 80 °C), the numerical simulation of the modified Kalina cycle is carried out by using Engineering Equation Solver software. The result shows that the net power output of the modified Kalina cycle increases by 10.5% compared to that of the Kalina cycle. In addition, the parametric study shows that the optimal ammonia concentration of the basic solution in the general area is 0.9. The lower the cooling water temperature is, the lower the turbine exhaust pressure and the higher the net power output. When the ammonia concentrations of the basic solution are 0.6, 0.7, 0.8 and 0.9, the optimum pressures are 29 bar, 36 bar, 41 bar and 45 bar, respectively. The results of this study will contribute to the utilization of geothermal energy in hot dry rock. Text Iceland TÜBİTAK Academic Journals Husavik ENVELOPE(-17.345,-17.345,66.046,66.046) |
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TÜBİTAK Academic Journals |
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fttubitakaj |
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topic |
Hot dry rock Kalina cycle power cycle ammonia-water mixture Earth Sciences |
spellingShingle |
Hot dry rock Kalina cycle power cycle ammonia-water mixture Earth Sciences LEI, GUOBIN ZHOU, JUN SHI, SHENGCHAO QI, FUZHI XU, JIAWEI PENG, JIE ZHANG, JIAQI LIU, DONGXI MENG, QINGYAO Simulation and parametric study on a novel modified Kalina cycle |
topic_facet |
Hot dry rock Kalina cycle power cycle ammonia-water mixture Earth Sciences |
description |
To improve the utilization rate of hot dry rock resources, it is necessary to recover the energy of geothermal tailwater and improve the net output work. An improved ammonia-water power cycle is proposed based on the Kalina cycle. Taking the geothermal parameters of the Husavik Power Plant in Iceland as the prototype (the water temperature of the geothermal well is 122 °C, and the tailwater temperature is 80 °C), the numerical simulation of the modified Kalina cycle is carried out by using Engineering Equation Solver software. The result shows that the net power output of the modified Kalina cycle increases by 10.5% compared to that of the Kalina cycle. In addition, the parametric study shows that the optimal ammonia concentration of the basic solution in the general area is 0.9. The lower the cooling water temperature is, the lower the turbine exhaust pressure and the higher the net power output. When the ammonia concentrations of the basic solution are 0.6, 0.7, 0.8 and 0.9, the optimum pressures are 29 bar, 36 bar, 41 bar and 45 bar, respectively. The results of this study will contribute to the utilization of geothermal energy in hot dry rock. |
format |
Text |
author |
LEI, GUOBIN ZHOU, JUN SHI, SHENGCHAO QI, FUZHI XU, JIAWEI PENG, JIE ZHANG, JIAQI LIU, DONGXI MENG, QINGYAO |
author_facet |
LEI, GUOBIN ZHOU, JUN SHI, SHENGCHAO QI, FUZHI XU, JIAWEI PENG, JIE ZHANG, JIAQI LIU, DONGXI MENG, QINGYAO |
author_sort |
LEI, GUOBIN |
title |
Simulation and parametric study on a novel modified Kalina cycle |
title_short |
Simulation and parametric study on a novel modified Kalina cycle |
title_full |
Simulation and parametric study on a novel modified Kalina cycle |
title_fullStr |
Simulation and parametric study on a novel modified Kalina cycle |
title_full_unstemmed |
Simulation and parametric study on a novel modified Kalina cycle |
title_sort |
simulation and parametric study on a novel modified kalina cycle |
publisher |
TÜBİTAK Academic Journals |
publishDate |
2021 |
url |
https://journals.tubitak.gov.tr/earth/vol30/iss9/10 https://journals.tubitak.gov.tr/cgi/viewcontent.cgi?article=1054&context=earth |
long_lat |
ENVELOPE(-17.345,-17.345,66.046,66.046) |
geographic |
Husavik |
geographic_facet |
Husavik |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Turkish Journal of Earth Sciences |
op_relation |
https://journals.tubitak.gov.tr/earth/vol30/iss9/10 https://journals.tubitak.gov.tr/cgi/viewcontent.cgi?article=1054&context=earth |
_version_ |
1766040900659576832 |