Performance of Exergetic, Energetic and Techno-Economic Analyses on a Gas-Type Industrial Drying System of Black Tea
The purpose of this research work is to perform detailed exergetic, energetic and techno-economic analysis of the black tea drying process in the gas-type industrial dryer. Exergy–energy and techno-economic methodology was applied to investigate the heat loss, exergetic and energetic performance, ex...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/11/20/3281 |
| _version_ | 1797473314379137024 |
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| author | Zhiheng Zeng Bin Li Chongyang Han Weibin Wu Tianci Chen Chengju Dong Changlun Gao Zhaokai He Fangren Zhang |
| author_facet | Zhiheng Zeng Bin Li Chongyang Han Weibin Wu Tianci Chen Chengju Dong Changlun Gao Zhaokai He Fangren Zhang |
| author_sort | Zhiheng Zeng |
| collection | DOAJ |
| description | The purpose of this research work is to perform detailed exergetic, energetic and techno-economic analysis of the black tea drying process in the gas-type industrial dryer. Exergy–energy and techno-economic methodology was applied to investigate the heat loss, exergetic and energetic performance, exergy efficiency, improvement potential rate, sustainability index and techno-economic performance of a drying system. The results showed that the heat loss of exhaust air in the late drying process played a main contributing role in the heat loss and exergy loss of the whole drying system. Therefore, the exergy efficiency of the initial drying period and the redrying period varied from 38.08% to 65.09% and 24.76% to 26.97%, respectively. In addition, the improvement potential rate and sustainability index of the whole system varied from 6.93 kW to 12.94 kW and 1.33 to 2.86, respectively. The improvement potential obtained in the present work indicated that the drying operation is greatly in need of exergy performance improvement. Finally, the net present value and payback period obtained from techno-economic analysis were 179,442.03 USD and 5.3 years, the result is useful for investors or contractors to refer to and make investment decisions. |
| first_indexed | 2024-03-09T20:14:00Z |
| format | Article |
| id | doaj.art-d6e8cd0932f94282bcf5910d5ea8f4df |
| institution | Directory Open Access Journal |
| issn | 2304-8158 |
| language | English |
| last_indexed | 2024-03-09T20:14:00Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Foods |
| spelling | doaj.art-d6e8cd0932f94282bcf5910d5ea8f4df2023-11-24T00:08:20ZengMDPI AGFoods2304-81582022-10-011120328110.3390/foods11203281Performance of Exergetic, Energetic and Techno-Economic Analyses on a Gas-Type Industrial Drying System of Black TeaZhiheng Zeng0Bin Li1Chongyang Han2Weibin Wu3Tianci Chen4Chengju Dong5Changlun Gao6Zhaokai He7Fangren Zhang8College of Engineering, South China Agricultural University, Guangzhou 510642, ChinaSchool of Intelligent Manufacturing Engineering, Chongqing University of Arts and Sciences, Chongqing 404100, ChinaCollege of Engineering, South China Agricultural University, Guangzhou 510642, ChinaCollege of Engineering, South China Agricultural University, Guangzhou 510642, ChinaCollege of Engineering, South China Agricultural University, Guangzhou 510642, ChinaCollege of Engineering, South China Agricultural University, Guangzhou 510642, ChinaCollege of Engineering, South China Agricultural University, Guangzhou 510642, ChinaCollege of Engineering, South China Agricultural University, Guangzhou 510642, ChinaCollege of Engineering, South China Agricultural University, Guangzhou 510642, ChinaThe purpose of this research work is to perform detailed exergetic, energetic and techno-economic analysis of the black tea drying process in the gas-type industrial dryer. Exergy–energy and techno-economic methodology was applied to investigate the heat loss, exergetic and energetic performance, exergy efficiency, improvement potential rate, sustainability index and techno-economic performance of a drying system. The results showed that the heat loss of exhaust air in the late drying process played a main contributing role in the heat loss and exergy loss of the whole drying system. Therefore, the exergy efficiency of the initial drying period and the redrying period varied from 38.08% to 65.09% and 24.76% to 26.97%, respectively. In addition, the improvement potential rate and sustainability index of the whole system varied from 6.93 kW to 12.94 kW and 1.33 to 2.86, respectively. The improvement potential obtained in the present work indicated that the drying operation is greatly in need of exergy performance improvement. Finally, the net present value and payback period obtained from techno-economic analysis were 179,442.03 USD and 5.3 years, the result is useful for investors or contractors to refer to and make investment decisions.https://www.mdpi.com/2304-8158/11/20/3281exergeticenergetictechno-economicdryingteaindustrial |
| spellingShingle | Zhiheng Zeng Bin Li Chongyang Han Weibin Wu Tianci Chen Chengju Dong Changlun Gao Zhaokai He Fangren Zhang Performance of Exergetic, Energetic and Techno-Economic Analyses on a Gas-Type Industrial Drying System of Black Tea Foods exergetic energetic techno-economic drying tea industrial |
| title | Performance of Exergetic, Energetic and Techno-Economic Analyses on a Gas-Type Industrial Drying System of Black Tea |
| title_full | Performance of Exergetic, Energetic and Techno-Economic Analyses on a Gas-Type Industrial Drying System of Black Tea |
| title_fullStr | Performance of Exergetic, Energetic and Techno-Economic Analyses on a Gas-Type Industrial Drying System of Black Tea |
| title_full_unstemmed | Performance of Exergetic, Energetic and Techno-Economic Analyses on a Gas-Type Industrial Drying System of Black Tea |
| title_short | Performance of Exergetic, Energetic and Techno-Economic Analyses on a Gas-Type Industrial Drying System of Black Tea |
| title_sort | performance of exergetic energetic and techno economic analyses on a gas type industrial drying system of black tea |
| topic | exergetic energetic techno-economic drying tea industrial |
| url | https://www.mdpi.com/2304-8158/11/20/3281 |
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