CFD analysis of evaporation heat transfer for falling films application
<p>Multi-effect desalination (MED) uses less energy and has a smaller footprint than other thermal desalination systems. The MED plant consists of cascaded horizontal-tube falling film exchangers (HFFE), offering improved heat transfer at lower liquid loads. The MED plant’s current working tem...
محفوظ في:
| المؤلف الرئيسي: | |
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| مؤلفون آخرون: | |
| منشور في: |
2021
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| الموضوعات: | |
| الوسوم: |
إضافة وسم
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| _version_ | 1864513507027845120 |
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| author | Furqan Tahir (14429547) |
| author2 | Sami G. Al-Ghamdi (792755) |
| author2_role | author |
| author_facet | Furqan Tahir (14429547) Sami G. Al-Ghamdi (792755) |
| author_role | author |
| dc.creator.none.fl_str_mv | Furqan Tahir (14429547) Sami G. Al-Ghamdi (792755) |
| dc.date.none.fl_str_mv | 2021-12-02T15:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.egyr.2021.11.096 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/CFD_analysis_of_evaporation_heat_transfer_for_falling_films_application/26840119 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Chemical engineering Fluid mechanics and thermal engineering CFD Desalination Evaporation Falling film Heat transfer coefficient Horizontal tube |
| dc.title.none.fl_str_mv | CFD analysis of evaporation heat transfer for falling films application |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p>Multi-effect desalination (MED) uses less energy and has a smaller footprint than other thermal desalination systems. The MED plant consists of cascaded horizontal-tube falling film exchangers (HFFE), offering improved heat transfer at lower liquid loads. The MED plant’s current working temperature range is 40 °C–65 °C, for which 6–8 HFFE can be used. However, this limit can be extended to 5 °C–85 °C by using new antiscalants and an adsorption vapor compression system. Thus, more HFFE can provide enhanced water production. Furthermore, the heat transfer studies for this range are limited. Therefore, this work presents a 2-D computational fluid dynamics (CFD) model in Ansys fluent v19.0 to examine the film thickness, the temperature distribution, and the heat transfer coefficient for working temperatures of 5 °C, 65 °C, and 85 °C at various liquid loads. It is found that the heat transfer is improved at higher temperatures and liquid loads by 21 %–37 %, which indicates lower energy requirements and better distillate productivity.</p><h2>Other Information</h2> <p> Published in: Energy Reports<br> License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.egyr.2021.11.096" target="_blank">https://dx.doi.org/10.1016/j.egyr.2021.11.096</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_d12af81c80dcd6fb194d68ab5ac30ae4 |
| identifier_str_mv | 10.1016/j.egyr.2021.11.096 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/26840119 |
| publishDate | 2021 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | CFD analysis of evaporation heat transfer for falling films applicationFurqan Tahir (14429547)Sami G. Al-Ghamdi (792755)EngineeringChemical engineeringFluid mechanics and thermal engineeringCFDDesalinationEvaporationFalling filmHeat transfer coefficientHorizontal tube<p>Multi-effect desalination (MED) uses less energy and has a smaller footprint than other thermal desalination systems. The MED plant consists of cascaded horizontal-tube falling film exchangers (HFFE), offering improved heat transfer at lower liquid loads. The MED plant’s current working temperature range is 40 °C–65 °C, for which 6–8 HFFE can be used. However, this limit can be extended to 5 °C–85 °C by using new antiscalants and an adsorption vapor compression system. Thus, more HFFE can provide enhanced water production. Furthermore, the heat transfer studies for this range are limited. Therefore, this work presents a 2-D computational fluid dynamics (CFD) model in Ansys fluent v19.0 to examine the film thickness, the temperature distribution, and the heat transfer coefficient for working temperatures of 5 °C, 65 °C, and 85 °C at various liquid loads. It is found that the heat transfer is improved at higher temperatures and liquid loads by 21 %–37 %, which indicates lower energy requirements and better distillate productivity.</p><h2>Other Information</h2> <p> Published in: Energy Reports<br> License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.egyr.2021.11.096" target="_blank">https://dx.doi.org/10.1016/j.egyr.2021.11.096</a></p>2021-12-02T15:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.egyr.2021.11.096https://figshare.com/articles/journal_contribution/CFD_analysis_of_evaporation_heat_transfer_for_falling_films_application/26840119CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/268401192021-12-02T15:00:00Z |
| spellingShingle | CFD analysis of evaporation heat transfer for falling films application Furqan Tahir (14429547) Engineering Chemical engineering Fluid mechanics and thermal engineering CFD Desalination Evaporation Falling film Heat transfer coefficient Horizontal tube |
| status_str | publishedVersion |
| title | CFD analysis of evaporation heat transfer for falling films application |
| title_full | CFD analysis of evaporation heat transfer for falling films application |
| title_fullStr | CFD analysis of evaporation heat transfer for falling films application |
| title_full_unstemmed | CFD analysis of evaporation heat transfer for falling films application |
| title_short | CFD analysis of evaporation heat transfer for falling films application |
| title_sort | CFD analysis of evaporation heat transfer for falling films application |
| topic | Engineering Chemical engineering Fluid mechanics and thermal engineering CFD Desalination Evaporation Falling film Heat transfer coefficient Horizontal tube |