Use of latent heat recovery from liquefied natural gas combustion for increasing the efficiency of a combined-cycle gas turbine power plant

Li Yuan-Hu; Jinyoung Kim; Seohyun Kim; Haksoo Han

doi:10.1016/j.applthermaleng.2019.114177

Use of latent heat recovery from liquefied natural gas combustion for increasing the efficiency of a combined-cycle gas turbine power plant

Li Yuan-Hu, Jinyoung Kim, Seohyun Kim, Haksoo Han

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

To increase the efficiency of a combined-cycle gas turbine (CCGT) power plant, an innovative system was built to recycle its internal unutilized energy and increase the heating output. CCGT circulation and absorption heat pump circulation were combined in the new system, and latent heat recovery from LNG combustion was realized with very slight power consumption. The innovative system was applied in a 200-MW power plant, and real operation data were obtained to design optimal temperature and flow rate balance. Finally, the effect of system transformation on the efficiency increase was analyzed. The proposed system enhanced the overall primary energy efficiency of cogeneration and thermal output by 2.6 and 7.4%, respectively.

Original language	English
Article number	114177
Journal	Applied Thermal Engineering
Volume	161
DOIs	https://doi.org/10.1016/j.applthermaleng.2019.114177
Publication status	Published - 2019 Oct

Bibliographical note

Funding Information:
This work was supported by a National Research Foundation of Korea grant funded by the Korean government (MSIT) (No. 2017R1D1A1B03033332 ), the Commercialization Promotion Agency for R&D Outcomes (COMPA) funded by the Ministry of Science and ICT (MSIT) (No. 2019K000072 ) and the Human Resources Program in Energy Technology of the Korea Institute of Energy Technology Evaluation and Planning , which was granted financial resources from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20174010201640 ).

Funding Information:
This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. 2017033332) and the Human Resources Program in Energy Technology of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), which was granted financial resources from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20174010201640).

Publisher Copyright:
© 2019 Elsevier Ltd

All Science Journal Classification (ASJC) codes

Energy Engineering and Power Technology
Industrial and Manufacturing Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.applthermaleng.2019.114177

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title = "Use of latent heat recovery from liquefied natural gas combustion for increasing the efficiency of a combined-cycle gas turbine power plant",

abstract = "To increase the efficiency of a combined-cycle gas turbine (CCGT) power plant, an innovative system was built to recycle its internal unutilized energy and increase the heating output. CCGT circulation and absorption heat pump circulation were combined in the new system, and latent heat recovery from LNG combustion was realized with very slight power consumption. The innovative system was applied in a 200-MW power plant, and real operation data were obtained to design optimal temperature and flow rate balance. Finally, the effect of system transformation on the efficiency increase was analyzed. The proposed system enhanced the overall primary energy efficiency of cogeneration and thermal output by 2.6 and 7.4%, respectively.",

author = "Li Yuan-Hu and Jinyoung Kim and Seohyun Kim and Haksoo Han",

note = "Funding Information: This work was supported by a National Research Foundation of Korea grant funded by the Korean government (MSIT) (No. 2017R1D1A1B03033332 ), the Commercialization Promotion Agency for R&D Outcomes (COMPA) funded by the Ministry of Science and ICT (MSIT) (No. 2019K000072 ) and the Human Resources Program in Energy Technology of the Korea Institute of Energy Technology Evaluation and Planning , which was granted financial resources from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20174010201640 ). Funding Information: This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. 2017033332) and the Human Resources Program in Energy Technology of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), which was granted financial resources from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20174010201640). Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

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AU - Yuan-Hu, Li

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AU - Kim, Seohyun

AU - Han, Haksoo

N1 - Funding Information: This work was supported by a National Research Foundation of Korea grant funded by the Korean government (MSIT) (No. 2017R1D1A1B03033332 ), the Commercialization Promotion Agency for R&D Outcomes (COMPA) funded by the Ministry of Science and ICT (MSIT) (No. 2019K000072 ) and the Human Resources Program in Energy Technology of the Korea Institute of Energy Technology Evaluation and Planning , which was granted financial resources from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20174010201640 ). Funding Information: This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. 2017033332) and the Human Resources Program in Energy Technology of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), which was granted financial resources from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20174010201640). Publisher Copyright: © 2019 Elsevier Ltd

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N2 - To increase the efficiency of a combined-cycle gas turbine (CCGT) power plant, an innovative system was built to recycle its internal unutilized energy and increase the heating output. CCGT circulation and absorption heat pump circulation were combined in the new system, and latent heat recovery from LNG combustion was realized with very slight power consumption. The innovative system was applied in a 200-MW power plant, and real operation data were obtained to design optimal temperature and flow rate balance. Finally, the effect of system transformation on the efficiency increase was analyzed. The proposed system enhanced the overall primary energy efficiency of cogeneration and thermal output by 2.6 and 7.4%, respectively.

AB - To increase the efficiency of a combined-cycle gas turbine (CCGT) power plant, an innovative system was built to recycle its internal unutilized energy and increase the heating output. CCGT circulation and absorption heat pump circulation were combined in the new system, and latent heat recovery from LNG combustion was realized with very slight power consumption. The innovative system was applied in a 200-MW power plant, and real operation data were obtained to design optimal temperature and flow rate balance. Finally, the effect of system transformation on the efficiency increase was analyzed. The proposed system enhanced the overall primary energy efficiency of cogeneration and thermal output by 2.6 and 7.4%, respectively.

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Use of latent heat recovery from liquefied natural gas combustion for increasing the efficiency of a combined-cycle gas turbine power plant

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

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