A micro cogeneration system with LNG cold utilization-part 2 : exergy analyses
Exergy analyses provide to investigate the available work performance of thermal cycles. In this study, exergy analyses have been conducted for the conventional micro-cogeneration system and the Liquefied Natural Gas (LNG) cold utilized micro cogeneration system, respectively to detect exergy destru...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2018
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| Online Access: | https://hdl.handle.net/10356/89921 http://hdl.handle.net/10220/46420 |
| _version_ | 1811679657924231168 |
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| author | Kanbur, Baris Burak Xiang, Liming Dubey, Swapnil Hoong, Choo Fook Duan, Fei |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Kanbur, Baris Burak Xiang, Liming Dubey, Swapnil Hoong, Choo Fook Duan, Fei |
| author_sort | Kanbur, Baris Burak |
| collection | NTU |
| description | Exergy analyses provide to investigate the available work performance of thermal cycles. In this study, exergy analyses have been conducted for the conventional micro-cogeneration system and the Liquefied Natural Gas (LNG) cold utilized micro cogeneration system, respectively to detect exergy destruction and loss ratios which are related to second law analyses. In the LNG cold utilized micro-cogeneration system, the exhausted gas of micro turbine is supplied to the LNG vaporizer to change the phase of LNG from liquid to gas. Due to fact that exergy destruction and loss rates, exergetic efficiency decreases with the ambient air temperature increment by nearly 28%. Owing to the application of exhausted gas in the LNG vaporizer in the LNG cold utilized micro-cogeneration system, the exergy loss ratio decreases by approximately 81% when it is compared to the conventional micro-cogeneration system. At the same time, the exhausted gas temperature decreases nearly 2.93 K. Exergy destruction ratio is another evaluation criterion for exergy analyses and it is seen that the combustion chamber had a significant impact on the overall exergetic performance of both systems. The minimum exergy destruction rate belongs to the LNG pump and also the LNG vaporizer does not have a significant exergy destruction ratio. |
| first_indexed | 2024-10-01T03:12:39Z |
| format | Journal Article |
| id | ntu-10356/89921 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:12:39Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/899212021-01-10T11:12:24Z A micro cogeneration system with LNG cold utilization-part 2 : exergy analyses Kanbur, Baris Burak Xiang, Liming Dubey, Swapnil Hoong, Choo Fook Duan, Fei School of Mechanical and Aerospace Engineering School of Physical and Mathematical Sciences Interdisciplinary Graduate School (IGS) Energy Research Institute @ NTU (ERI@N) LNG Cold Energy Cogeneration DRNTU::Engineering::Mechanical engineering Exergy analyses provide to investigate the available work performance of thermal cycles. In this study, exergy analyses have been conducted for the conventional micro-cogeneration system and the Liquefied Natural Gas (LNG) cold utilized micro cogeneration system, respectively to detect exergy destruction and loss ratios which are related to second law analyses. In the LNG cold utilized micro-cogeneration system, the exhausted gas of micro turbine is supplied to the LNG vaporizer to change the phase of LNG from liquid to gas. Due to fact that exergy destruction and loss rates, exergetic efficiency decreases with the ambient air temperature increment by nearly 28%. Owing to the application of exhausted gas in the LNG vaporizer in the LNG cold utilized micro-cogeneration system, the exergy loss ratio decreases by approximately 81% when it is compared to the conventional micro-cogeneration system. At the same time, the exhausted gas temperature decreases nearly 2.93 K. Exergy destruction ratio is another evaluation criterion for exergy analyses and it is seen that the combustion chamber had a significant impact on the overall exergetic performance of both systems. The minimum exergy destruction rate belongs to the LNG pump and also the LNG vaporizer does not have a significant exergy destruction ratio. NRF (Natl Research Foundation, S’pore) Published version 2018-10-25T02:37:32Z 2019-12-06T17:36:38Z 2018-10-25T02:37:32Z 2019-12-06T17:36:38Z 2017 Journal Article Kanbur, B. B., Xiang, L., Dubey, S., Hoong, C. F., & Duan, F. (2017). A micro cogeneration system with LNG cold utilization-part 2 : exergy analyses. Energy Procedia, 105, 1910-1917. doi:10.1016/j.egypro.2017.03.559 1876-6102 https://hdl.handle.net/10356/89921 http://hdl.handle.net/10220/46420 10.1016/j.egypro.2017.03.559 en Energy Procedia © 2017 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). 8 p. application/pdf |
| spellingShingle | LNG Cold Energy Cogeneration DRNTU::Engineering::Mechanical engineering Kanbur, Baris Burak Xiang, Liming Dubey, Swapnil Hoong, Choo Fook Duan, Fei A micro cogeneration system with LNG cold utilization-part 2 : exergy analyses |
| title | A micro cogeneration system with LNG cold utilization-part 2 : exergy analyses |
| title_full | A micro cogeneration system with LNG cold utilization-part 2 : exergy analyses |
| title_fullStr | A micro cogeneration system with LNG cold utilization-part 2 : exergy analyses |
| title_full_unstemmed | A micro cogeneration system with LNG cold utilization-part 2 : exergy analyses |
| title_short | A micro cogeneration system with LNG cold utilization-part 2 : exergy analyses |
| title_sort | micro cogeneration system with lng cold utilization part 2 exergy analyses |
| topic | LNG Cold Energy Cogeneration DRNTU::Engineering::Mechanical engineering |
| url | https://hdl.handle.net/10356/89921 http://hdl.handle.net/10220/46420 |
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