Use of multiple extractions and injections to thermodynamically balance the humidification dehumidification desalination system
Humidification dehumidification (HDH) desalination systems are well suited for small scale, off-grid desalination. These systems are very robust and can tolerate a wide range of feed salinities, making them a good candidate for treating produced water from hydraulically fractured natural gas wells....
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
Elsevier
2016
|
| Online Access: | http://hdl.handle.net/1721.1/102491 https://orcid.org/0000-0003-3559-9167 https://orcid.org/0000-0002-2901-0638 |
| _version_ | 1826206277014913024 |
|---|---|
| author | Prakash Narayan, G. Zubair, Syed M. Chehayeb, Karim Malek Lienhard, John H |
| author2 | Massachusetts Institute of Technology. Abdul Latif Jameel World Water & Food Security Lab |
| author_facet | Massachusetts Institute of Technology. Abdul Latif Jameel World Water & Food Security Lab Prakash Narayan, G. Zubair, Syed M. Chehayeb, Karim Malek Lienhard, John H |
| author_sort | Prakash Narayan, G. |
| collection | MIT |
| description | Humidification dehumidification (HDH) desalination systems are well suited for small scale, off-grid desalination. These systems are very robust and can tolerate a wide range of feed salinities, making them a good candidate for treating produced water from hydraulically fractured natural gas wells. A primary engineering challenge for these systems is their high thermal energy consumption. In this study, we examine the use of multiple air extractions and injections to thermodynamically balance the HDH system, so as to make it more energy efficient. The effect of the number of extractions on several performance parameters is studied. In addition, we study the effect of the enthalpy pinch, which is a measure of performance for a heat and mass exchanger, on these performance parameters. Finally, we present results that can be used as guidelines in designing HDH systems. These results include the identification of appropriate temperatures for the extracted/injected air streams, the division of the heat duty between stages, and the value of the mass flow rate ratio in each stage at various values of enthalpy pinch. |
| first_indexed | 2024-09-23T13:26:54Z |
| format | Article |
| id | mit-1721.1/102491 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:26:54Z |
| publishDate | 2016 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | mit-1721.1/1024912023-02-17T02:05:36Z Use of multiple extractions and injections to thermodynamically balance the humidification dehumidification desalination system Prakash Narayan, G. Zubair, Syed M. Chehayeb, Karim Malek Lienhard, John H Massachusetts Institute of Technology. Abdul Latif Jameel World Water & Food Security Lab Massachusetts Institute of Technology. Department of Mechanical Engineering Lienhard, John H. Chehayeb, Karim Malek Lienhard, John H. Humidification dehumidification (HDH) desalination systems are well suited for small scale, off-grid desalination. These systems are very robust and can tolerate a wide range of feed salinities, making them a good candidate for treating produced water from hydraulically fractured natural gas wells. A primary engineering challenge for these systems is their high thermal energy consumption. In this study, we examine the use of multiple air extractions and injections to thermodynamically balance the HDH system, so as to make it more energy efficient. The effect of the number of extractions on several performance parameters is studied. In addition, we study the effect of the enthalpy pinch, which is a measure of performance for a heat and mass exchanger, on these performance parameters. Finally, we present results that can be used as guidelines in designing HDH systems. These results include the identification of appropriate temperatures for the extracted/injected air streams, the division of the heat duty between stages, and the value of the mass flow rate ratio in each stage at various values of enthalpy pinch. Center for Clean Water and Clean Energy at MIT and KFUPM (Project R4-CW-08) 2016-05-13T19:29:32Z 2016-05-13T19:29:32Z 2013-10 2013-09 Article http://purl.org/eprint/type/JournalArticle 00179310 http://hdl.handle.net/1721.1/102491 Chehayeb, Karim M., G. Prakash Narayan, Syed M. Zubair, and John H. Lienhard. “Use of Multiple Extractions and Injections to Thermodynamically Balance the Humidification Dehumidification Desalination System.” International Journal of Heat and Mass Transfer 68 (January 2014): 422–34. https://orcid.org/0000-0003-3559-9167 https://orcid.org/0000-0002-2901-0638 en_US http://dx.doi.org/10.1016/j.ijheatmasstransfer.2013.09.025 International Journal of Heat and Mass Transfer Creative Commons Attribution-Noncommercial-NoDerivatives http://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Elsevier Lienhard via Angie Locknar |
| spellingShingle | Prakash Narayan, G. Zubair, Syed M. Chehayeb, Karim Malek Lienhard, John H Use of multiple extractions and injections to thermodynamically balance the humidification dehumidification desalination system |
| title | Use of multiple extractions and injections to thermodynamically balance the humidification dehumidification desalination system |
| title_full | Use of multiple extractions and injections to thermodynamically balance the humidification dehumidification desalination system |
| title_fullStr | Use of multiple extractions and injections to thermodynamically balance the humidification dehumidification desalination system |
| title_full_unstemmed | Use of multiple extractions and injections to thermodynamically balance the humidification dehumidification desalination system |
| title_short | Use of multiple extractions and injections to thermodynamically balance the humidification dehumidification desalination system |
| title_sort | use of multiple extractions and injections to thermodynamically balance the humidification dehumidification desalination system |
| url | http://hdl.handle.net/1721.1/102491 https://orcid.org/0000-0003-3559-9167 https://orcid.org/0000-0002-2901-0638 |
| work_keys_str_mv | AT prakashnarayang useofmultipleextractionsandinjectionstothermodynamicallybalancethehumidificationdehumidificationdesalinationsystem AT zubairsyedm useofmultipleextractionsandinjectionstothermodynamicallybalancethehumidificationdehumidificationdesalinationsystem AT chehayebkarimmalek useofmultipleextractionsandinjectionstothermodynamicallybalancethehumidificationdehumidificationdesalinationsystem AT lienhardjohnh useofmultipleextractionsandinjectionstothermodynamicallybalancethehumidificationdehumidificationdesalinationsystem |