Heat and mass transport analysis of membrane distillation using thermal network method
In this study, we investigate membrane distillation (MD), which is a promising desalination technology. Conventional evaporation methods require seawater to be heated to its boiling point, and reverse osmosis (RO) methods require the liquid to be pressurized to a high pressure. MD is a technology th...
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2025-02-01
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| Series: | Journal of Thermal Science and Technology |
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| Online Access: | https://www.jstage.jst.go.jp/article/jtst/20/1/20_24-00225/_pdf/-char/en |
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| author | Yuki ONO Chihaya SATO Kaoru HANABUSA Takaaki MORITA Naoki ONO |
| author_facet | Yuki ONO Chihaya SATO Kaoru HANABUSA Takaaki MORITA Naoki ONO |
| author_sort | Yuki ONO |
| collection | DOAJ |
| description | In this study, we investigate membrane distillation (MD), which is a promising desalination technology. Conventional evaporation methods require seawater to be heated to its boiling point, and reverse osmosis (RO) methods require the liquid to be pressurized to a high pressure. MD is a technology that enables freshwater production without imposing high temperature and pressure conditions. This technology uses the phase transition of water in seawater to separate the generated water vapour from seawater using separation membranes with nanoscale pores. The driving force of the water vapour is the difference in water vapour pressure before and after passing through the separation membranes, which depends on the temperatures near both ends of the separation membrane surfaces. We analysed heat and mass transport by using a thermal network method assuming a 1D steady state. The network models were applied to a direct contact membrane distillation (DCMD) and a permeate gap membrane distillation (PGMD) and compared with experimental values for distillation simply using pure water. The results show that, for the temperatures, the experimental and calculated values agreed about the membrane surface temperatures within approximately 7.5 % to 15 % of the temperature difference between the hot water and cooling water temperatures, and for the permeate fluxes, the experimental and calculated values were consistent within 25 % of the calculated values. |
| format | Article |
| id | doaj-art-cd3a456475614b11bc2dbc69371672d5 |
| institution | DOAJ |
| issn | 1880-5566 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Journal of Thermal Science and Technology |
| spelling | doaj-art-cd3a456475614b11bc2dbc69371672d52025-08-20T02:44:29ZengThe Japan Society of Mechanical EngineersJournal of Thermal Science and Technology1880-55662025-02-0120124-0022524-0022510.1299/jtst.24-00225jtstHeat and mass transport analysis of membrane distillation using thermal network methodYuki ONO0Chihaya SATO1Kaoru HANABUSA2Takaaki MORITA3Naoki ONO4Shibaura Institute of TechnologyShibaura Institute of TechnologyShibaura Institute of TechnologyTokyo Ohka Kogyo Co., Ltd.Shibaura Institute of TechnologyIn this study, we investigate membrane distillation (MD), which is a promising desalination technology. Conventional evaporation methods require seawater to be heated to its boiling point, and reverse osmosis (RO) methods require the liquid to be pressurized to a high pressure. MD is a technology that enables freshwater production without imposing high temperature and pressure conditions. This technology uses the phase transition of water in seawater to separate the generated water vapour from seawater using separation membranes with nanoscale pores. The driving force of the water vapour is the difference in water vapour pressure before and after passing through the separation membranes, which depends on the temperatures near both ends of the separation membrane surfaces. We analysed heat and mass transport by using a thermal network method assuming a 1D steady state. The network models were applied to a direct contact membrane distillation (DCMD) and a permeate gap membrane distillation (PGMD) and compared with experimental values for distillation simply using pure water. The results show that, for the temperatures, the experimental and calculated values agreed about the membrane surface temperatures within approximately 7.5 % to 15 % of the temperature difference between the hot water and cooling water temperatures, and for the permeate fluxes, the experimental and calculated values were consistent within 25 % of the calculated values.https://www.jstage.jst.go.jp/article/jtst/20/1/20_24-00225/_pdf/-char/endesalinationmembrane distillationnanopore membraneporous materialknudsen diffusionthermal network method |
| spellingShingle | Yuki ONO Chihaya SATO Kaoru HANABUSA Takaaki MORITA Naoki ONO Heat and mass transport analysis of membrane distillation using thermal network method Journal of Thermal Science and Technology desalination membrane distillation nanopore membrane porous material knudsen diffusion thermal network method |
| title | Heat and mass transport analysis of membrane distillation using thermal network method |
| title_full | Heat and mass transport analysis of membrane distillation using thermal network method |
| title_fullStr | Heat and mass transport analysis of membrane distillation using thermal network method |
| title_full_unstemmed | Heat and mass transport analysis of membrane distillation using thermal network method |
| title_short | Heat and mass transport analysis of membrane distillation using thermal network method |
| title_sort | heat and mass transport analysis of membrane distillation using thermal network method |
| topic | desalination membrane distillation nanopore membrane porous material knudsen diffusion thermal network method |
| url | https://www.jstage.jst.go.jp/article/jtst/20/1/20_24-00225/_pdf/-char/en |
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