Theoretical analysis of a membrane-based cross-flow liquid desiccant system
Liquid desiccant air dehumidification has become one of the most widely used dehumidification technologies with advantages of high efficiency, no liquid condensate droplets and capability of energy storage. In this paper a cross-flow mathematical model is developed for a single layer membrane unit....
| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
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2016
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| Online Access: | https://eprints.nottingham.ac.uk/34204/ |
| _version_ | 1848794797950631936 |
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| author | Bai, Hongyu Chen, Ziwei Xu, Haijia Zhu, Jie |
| author_facet | Bai, Hongyu Chen, Ziwei Xu, Haijia Zhu, Jie |
| author_sort | Bai, Hongyu |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Liquid desiccant air dehumidification has become one of the most widely used dehumidification technologies with advantages of high efficiency, no liquid condensate droplets and capability of energy storage. In this paper a cross-flow mathematical model is developed for a single layer membrane unit. The governing equations are solved iteratively by finite difference method. The performance analysis is carried out for a small-scale membrane-based dehumidification module consisting of 8 air channels and 8 solution channels. The influences of main design parameters on system effectiveness are evaluated. These include air flow rate (NTU), solution to air mass flow rate ration (m*) and solution inlet temperature and concentration. It is revealed that higher sensible and latent effectiveness can be achieved with larger NTU and m*. Increasing solution concentration can also improve the dehumidification effect. |
| first_indexed | 2025-11-14T19:21:55Z |
| format | Conference or Workshop Item |
| id | nottingham-34204 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:21:55Z |
| publishDate | 2016 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-342042020-05-04T17:54:45Z https://eprints.nottingham.ac.uk/34204/ Theoretical analysis of a membrane-based cross-flow liquid desiccant system Bai, Hongyu Chen, Ziwei Xu, Haijia Zhu, Jie Liquid desiccant air dehumidification has become one of the most widely used dehumidification technologies with advantages of high efficiency, no liquid condensate droplets and capability of energy storage. In this paper a cross-flow mathematical model is developed for a single layer membrane unit. The governing equations are solved iteratively by finite difference method. The performance analysis is carried out for a small-scale membrane-based dehumidification module consisting of 8 air channels and 8 solution channels. The influences of main design parameters on system effectiveness are evaluated. These include air flow rate (NTU), solution to air mass flow rate ration (m*) and solution inlet temperature and concentration. It is revealed that higher sensible and latent effectiveness can be achieved with larger NTU and m*. Increasing solution concentration can also improve the dehumidification effect. 2016-06-29 Conference or Workshop Item PeerReviewed Bai, Hongyu, Chen, Ziwei, Xu, Haijia and Zhu, Jie (2016) Theoretical analysis of a membrane-based cross-flow liquid desiccant system. In: International Symposium of Heat Transfer and Heat Powered Cycles 2016, 27-29 June 2016, Nottingham, UK. Dehumidification Liquid desiccant Membrane-based |
| spellingShingle | Dehumidification Liquid desiccant Membrane-based Bai, Hongyu Chen, Ziwei Xu, Haijia Zhu, Jie Theoretical analysis of a membrane-based cross-flow liquid desiccant system |
| title | Theoretical analysis of a membrane-based cross-flow liquid desiccant system |
| title_full | Theoretical analysis of a membrane-based cross-flow liquid desiccant system |
| title_fullStr | Theoretical analysis of a membrane-based cross-flow liquid desiccant system |
| title_full_unstemmed | Theoretical analysis of a membrane-based cross-flow liquid desiccant system |
| title_short | Theoretical analysis of a membrane-based cross-flow liquid desiccant system |
| title_sort | theoretical analysis of a membrane-based cross-flow liquid desiccant system |
| topic | Dehumidification Liquid desiccant Membrane-based |
| url | https://eprints.nottingham.ac.uk/34204/ |