Idioma:

Theoretical and experimental studies of flux enhancement with roughened surface in direct contact membrane distillation desalination

Ho, Chii-Dong ; Chang, Hsuan ; Chang, Cheng-Liang ; Huang, Cheng-Hao

Journal of membrane science, 2013-04, Vol.433, p.160-166 [Periódico revisado por pares]

Amsterdam: Elsevier B.V

Texto completo disponível

Citações Citado por

Enviar para

Título:
Theoretical and experimental studies of flux enhancement with roughened surface in direct contact membrane distillation desalination
Autor: Ho, Chii-Dong ; Chang, Hsuan ; Chang, Cheng-Liang ; Huang, Cheng-Hao
Assuntos: aluminum oxide ; artificial membranes ; Chemistry ; coatings ; Colloidal state and disperse state ; Desalination ; Direct contact membrane distillation ; distillation ; energy ; Exact sciences and technology ; General and physical chemistry ; Heat transfer ; heat transfer coefficient ; mass transfer ; mathematical models ; Membranes ; nickel ; prediction ; roughness ; saline water ; sand ; spraying ; Surface physical chemistry ; Surface roughness ; Temperature polarization
É parte de: Journal of membrane science, 2013-04, Vol.433, p.160-166
Notas: http://dx.doi.org/10.1016/j.memsci.2012.12.044
Descrição: A new design of direct contact membrane distillation (DCMD) using roughened-surface flow channel for enhancement of heat transfer was proposed for increasing the pure water productivity in saline water desalination. The roughened surface was fabricated using siphonic-blasting with aluminum oxide (Al2O3) sand grains and arc spraying for Ni film coating. Experimental study has demonstrated its feasibility and up to 37% of performance enhancement was obtained for the experimental system. A mathematical model considering heat and mass transfer mechanisms has been developed and incorporated with experimental data for evolving a correlation for a heat transfer coefficient correction factor. The correlation is expressed as relative roughness and can be used for predicting the heat transfer coefficient for roughened-surface channels. Considering the tradeoff between the flux enhancements at the expense of energy consumption, an optimized level of roughness can be determined. ► A roughened-surface device of DCMD was developed theoretically and experimentally. ► Experimental study demonstrated its feasibility with 37% of performance enhancement. ► The correlation of the heat transfer coefficient for roughened-surface channels is obtained.
Editor: Amsterdam: Elsevier B.V
Idioma: Inglês

Links

View record in Pascal Francis

Voltar para lista de resultados

Realização: Logos de Redes Sociais:

Theoretical and experimental studies of flux enhancement with roughened surface in direct contact membrane distillation desalination

Ho, Chii-Dong ; Chang, Hsuan ; Chang, Cheng-Liang ; Huang, Cheng-Hao

Amsterdam: Elsevier B.V

Buscando em bases de dados remotas. Favor aguardar.