Finite sum based thermoeconomic and sustainable analyses of the small scale LNG cold utilized power generation systems
Liquefied natural gas (LNG) cold utilized micro cogeneration systems are the feasible and sustainable solutions for the inland regions where the large scale LNG cold utilization or the conventional pipeline systems are not economically applicable. The present study investigates the single and combin...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2020
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| Online Access: | https://hdl.handle.net/10356/140862 |
| _version_ | 1826120867946430464 |
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| author | Kanbur, Baris Burak Xiang, Liming Dubey, Swapnil Choo, Fook Hoong Duan, Fei |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Kanbur, Baris Burak Xiang, Liming Dubey, Swapnil Choo, Fook Hoong Duan, Fei |
| author_sort | Kanbur, Baris Burak |
| collection | NTU |
| description | Liquefied natural gas (LNG) cold utilized micro cogeneration systems are the feasible and sustainable solutions for the inland regions where the large scale LNG cold utilization or the conventional pipeline systems are not economically applicable. The present study investigates the single and combined systems in three LNG importing countries by using the finite sum modeling which is firstly performed for the LNG cold utilization systems with the sustainability index assessment. To generate electricity, the microturbine is integrated with an LNG vaporizer and an LNG pump in the single system while the combined system includes a Stirling engine and a thermal energy storage tank in addition to the microturbine and LNG cold utilization components. Thermodynamic, environmental, thermoeconomic and sustainable analyses are performed to obtain their yearly performance maps that are extremely difficult to obtain with the conventional dynamic modeling. The yearly performance trends of the net power generation rate, exergetic efficiency, and the levelized product cost are found similar to each other while they have contrary yearly trends with the overall energetic efficiency and the Stirling engine performance parameters. The net generated power rate, the Stirling engine performance parameters, the levelized product cost, the emission rate and the sustainability index have significant changes which must be considered for the real applications while the other factors are able to be neglected during the dynamic analysis since their fluctuations are small. The most convenient time are found at 08:00 am in all the case countries though the corresponding months change for each case country. The combined system is found more feasible than the single system from the thermodynamic, thermoeconomic, environmental and sustainable viewpoints. |
| first_indexed | 2024-10-01T05:23:28Z |
| format | Journal Article |
| id | ntu-10356/140862 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:23:28Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1408622021-01-08T07:28:15Z Finite sum based thermoeconomic and sustainable analyses of the small scale LNG cold utilized power generation systems Kanbur, Baris Burak Xiang, Liming Dubey, Swapnil Choo, Fook Hoong Duan, Fei School of Mechanical and Aerospace Engineering School of Physical and Mathematical Sciences Interdisciplinary Graduate School (IGS) Energy Research Institute @ NTU (ERI@N) Engineering::Mechanical engineering Thermoeconomic Analysis Environmental Analysis Liquefied natural gas (LNG) cold utilized micro cogeneration systems are the feasible and sustainable solutions for the inland regions where the large scale LNG cold utilization or the conventional pipeline systems are not economically applicable. The present study investigates the single and combined systems in three LNG importing countries by using the finite sum modeling which is firstly performed for the LNG cold utilization systems with the sustainability index assessment. To generate electricity, the microturbine is integrated with an LNG vaporizer and an LNG pump in the single system while the combined system includes a Stirling engine and a thermal energy storage tank in addition to the microturbine and LNG cold utilization components. Thermodynamic, environmental, thermoeconomic and sustainable analyses are performed to obtain their yearly performance maps that are extremely difficult to obtain with the conventional dynamic modeling. The yearly performance trends of the net power generation rate, exergetic efficiency, and the levelized product cost are found similar to each other while they have contrary yearly trends with the overall energetic efficiency and the Stirling engine performance parameters. The net generated power rate, the Stirling engine performance parameters, the levelized product cost, the emission rate and the sustainability index have significant changes which must be considered for the real applications while the other factors are able to be neglected during the dynamic analysis since their fluctuations are small. The most convenient time are found at 08:00 am in all the case countries though the corresponding months change for each case country. The combined system is found more feasible than the single system from the thermodynamic, thermoeconomic, environmental and sustainable viewpoints. NRF (Natl Research Foundation, S’pore) 2020-06-02T08:36:29Z 2020-06-02T08:36:29Z 2018 Journal Article Kanbur, B. B., Xiang, L., Dubey, S., Choo, F. H., & Duan, F. (2018). Finite sum based thermoeconomic and sustainable analyses of the small scale LNG cold utilized power generation systems. Applied Energy, 220, 944-961. doi:10.1016/j.apenergy.2017.12.088 0306-2619 https://hdl.handle.net/10356/140862 10.1016/j.apenergy.2017.12.088 2-s2.0-85039973190 220 944 961 en Applied Energy © 2017 Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering::Mechanical engineering Thermoeconomic Analysis Environmental Analysis Kanbur, Baris Burak Xiang, Liming Dubey, Swapnil Choo, Fook Hoong Duan, Fei Finite sum based thermoeconomic and sustainable analyses of the small scale LNG cold utilized power generation systems |
| title | Finite sum based thermoeconomic and sustainable analyses of the small scale LNG cold utilized power generation systems |
| title_full | Finite sum based thermoeconomic and sustainable analyses of the small scale LNG cold utilized power generation systems |
| title_fullStr | Finite sum based thermoeconomic and sustainable analyses of the small scale LNG cold utilized power generation systems |
| title_full_unstemmed | Finite sum based thermoeconomic and sustainable analyses of the small scale LNG cold utilized power generation systems |
| title_short | Finite sum based thermoeconomic and sustainable analyses of the small scale LNG cold utilized power generation systems |
| title_sort | finite sum based thermoeconomic and sustainable analyses of the small scale lng cold utilized power generation systems |
| topic | Engineering::Mechanical engineering Thermoeconomic Analysis Environmental Analysis |
| url | https://hdl.handle.net/10356/140862 |
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