Exergy Analysis of an Air Dehumidification System Equipped with Mixing Box and Heat Exchanger Heat Recovery Units
Exergy analysis emboldens in cases that all the inefficiencies and bottlenecks to improve energy systems are to be addressed. In this study, a novel vapor compression air dehumidifier integrated with an auxiliary heat exchanger in series arrangement with the main condenser in order to mitigate the r...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Iranian Association for Energy Economics
2019-08-01
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| Series: | Environmental Energy and Economic Research |
| Subjects: | |
| Online Access: | http://www.eeer.ir/article_88625_557d4e2cf5567bceea8226cf72230337.pdf |
| _version_ | 1818295808350486528 |
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| author | Tohid Jafarinejad Hossein Yousefi Amirhossein Fathi Kianoosh Choubineh |
| author_facet | Tohid Jafarinejad Hossein Yousefi Amirhossein Fathi Kianoosh Choubineh |
| author_sort | Tohid Jafarinejad |
| collection | DOAJ |
| description | Exergy analysis emboldens in cases that all the inefficiencies and bottlenecks to improve energy systems are to be addressed. In this study, a novel vapor compression air dehumidifier integrated with an auxiliary heat exchanger in series arrangement with the main condenser in order to mitigate the reheat coil, and an extra mixing box to recover the ventilated air heat has been introduced. A comprehensive methodology for exergetic analysis of vapor compression heating ventilation and air conditioning systems has been presented. The quasi-dynamic component-by-component exergy analyses of both the conventional and novel air dehumidification systems have been conducted for a specific outside air fraction. Also, sensitivity analyses have been conducted on the exergy destruction and efficiency as a function of outside air fraction. Results denote that for the outside air fraction of 53%, exergy destruction of the novel air dehumidification system has decreases up to 32.4% and exergy efficiency has ramped up by 53.45%. Moreover, by rising the outside air fraction from none to 100%, exergy destruction in the novel air dehumidification system has declined by 46% to 30.5 %, and exergy efficiency has undergone a 106% to 40.3 % increase compared with the conventional system depending on the outside. |
| first_indexed | 2024-12-13T03:53:32Z |
| format | Article |
| id | doaj.art-af3a0af830e54f34af5a4c3a825ff128 |
| institution | Directory Open Access Journal |
| issn | 2538-4988 2676-4997 |
| language | English |
| last_indexed | 2024-12-13T03:53:32Z |
| publishDate | 2019-08-01 |
| publisher | Iranian Association for Energy Economics |
| record_format | Article |
| series | Environmental Energy and Economic Research |
| spelling | doaj.art-af3a0af830e54f34af5a4c3a825ff1282022-12-22T00:00:40ZengIranian Association for Energy EconomicsEnvironmental Energy and Economic Research2538-49882676-49972019-08-013321522410.22097/eeer.2019.170335.106888625Exergy Analysis of an Air Dehumidification System Equipped with Mixing Box and Heat Exchanger Heat Recovery UnitsTohid Jafarinejad0Hossein Yousefi1Amirhossein Fathi2Kianoosh Choubineh3Department of Energy Engineering, Sharif University of Technology, Tehran, IranDepartment of Renewable Energy and Environment Faculty of New Sciences and Technologies, university of Tehran, Tehran, IranSchool of Mechanical Engineering, Shiraz University, Shiraz, IranDepartment of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran, IranExergy analysis emboldens in cases that all the inefficiencies and bottlenecks to improve energy systems are to be addressed. In this study, a novel vapor compression air dehumidifier integrated with an auxiliary heat exchanger in series arrangement with the main condenser in order to mitigate the reheat coil, and an extra mixing box to recover the ventilated air heat has been introduced. A comprehensive methodology for exergetic analysis of vapor compression heating ventilation and air conditioning systems has been presented. The quasi-dynamic component-by-component exergy analyses of both the conventional and novel air dehumidification systems have been conducted for a specific outside air fraction. Also, sensitivity analyses have been conducted on the exergy destruction and efficiency as a function of outside air fraction. Results denote that for the outside air fraction of 53%, exergy destruction of the novel air dehumidification system has decreases up to 32.4% and exergy efficiency has ramped up by 53.45%. Moreover, by rising the outside air fraction from none to 100%, exergy destruction in the novel air dehumidification system has declined by 46% to 30.5 %, and exergy efficiency has undergone a 106% to 40.3 % increase compared with the conventional system depending on the outside.http://www.eeer.ir/article_88625_557d4e2cf5567bceea8226cf72230337.pdfexergy analysisexergy destructionexergy efficiencyhvac systemsheat recovery |
| spellingShingle | Tohid Jafarinejad Hossein Yousefi Amirhossein Fathi Kianoosh Choubineh Exergy Analysis of an Air Dehumidification System Equipped with Mixing Box and Heat Exchanger Heat Recovery Units Environmental Energy and Economic Research exergy analysis exergy destruction exergy efficiency hvac systems heat recovery |
| title | Exergy Analysis of an Air Dehumidification System Equipped with Mixing Box and Heat Exchanger Heat Recovery Units |
| title_full | Exergy Analysis of an Air Dehumidification System Equipped with Mixing Box and Heat Exchanger Heat Recovery Units |
| title_fullStr | Exergy Analysis of an Air Dehumidification System Equipped with Mixing Box and Heat Exchanger Heat Recovery Units |
| title_full_unstemmed | Exergy Analysis of an Air Dehumidification System Equipped with Mixing Box and Heat Exchanger Heat Recovery Units |
| title_short | Exergy Analysis of an Air Dehumidification System Equipped with Mixing Box and Heat Exchanger Heat Recovery Units |
| title_sort | exergy analysis of an air dehumidification system equipped with mixing box and heat exchanger heat recovery units |
| topic | exergy analysis exergy destruction exergy efficiency hvac systems heat recovery |
| url | http://www.eeer.ir/article_88625_557d4e2cf5567bceea8226cf72230337.pdf |
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