Modeling the Effect of Spacer Orientation on Heat Transfer in Membrane Distillation
Computational fluid dynamics (CFD) simulations
carried out in this paper show that spacer orientation has a major
influence on temperature patterns and on the heat transfer rates. The
local heat flux values significantly vary from high to very low values
at each filament when spacer touches the membrane surface. The
heat flux profile is more uniform when spacer filaments are not in
contact with the membrane thus making this arrangement more
beneficial. The temperature polarization is also found to be less in
this case when compared to the empty channel.
[1] L. Martínez, M.I. Vázquez-González, and F.J. Florido-Díaz, "Study of
membrane distillation using channel spacers," Journal of Membrane
Science, vol. 144, pp. 45-56, 1998.
[2] L. Martínez, and J.M. Rodríguez-Maroto, "Characterization of membrane
distillation modules and analysis of mass flux enhancement by channel
spacers," Journal of Membrane Science, vol. 274, pp. 123-137, 2006.
[3] J. Phattaranawik, R. Jiraratananon, A.G. Fane, and C. Halim, "Mass flux
enhancement using spacer filled channel in direct contact membrane
distillation," Journal of Membrane Science, vol. 187, pp. 193-201, 2001.
[4] J. Phattaranawik, R. Jiraratananon, and A.G. Fane, "Effects of net-type
spacers on heat and mass transfer in direct contact membrane distillation
and comparison with ultrafiltration studies," Journal of Membrane
Science, vol. 217, pp. 193-206, 2003.
[5] A.M. Alklaibi, and N. Lior, "Flow modification spacers in membrane
distillation (MD) channels," in Proc. of IDA World Congress, Gran
Canaria, Spain, 2007.
[6] A. Cipollina, A. Di Miceli, J. Koschikowski, G. Micale, and L. Rizzuti,
"CFD simulation of a membrane distillation module channel,"
Desalination and Water Treatment, vol. 6, pp. 177-183, 2009.
[1] L. Martínez, M.I. Vázquez-González, and F.J. Florido-Díaz, "Study of
membrane distillation using channel spacers," Journal of Membrane
Science, vol. 144, pp. 45-56, 1998.
[2] L. Martínez, and J.M. Rodríguez-Maroto, "Characterization of membrane
distillation modules and analysis of mass flux enhancement by channel
spacers," Journal of Membrane Science, vol. 274, pp. 123-137, 2006.
[3] J. Phattaranawik, R. Jiraratananon, A.G. Fane, and C. Halim, "Mass flux
enhancement using spacer filled channel in direct contact membrane
distillation," Journal of Membrane Science, vol. 187, pp. 193-201, 2001.
[4] J. Phattaranawik, R. Jiraratananon, and A.G. Fane, "Effects of net-type
spacers on heat and mass transfer in direct contact membrane distillation
and comparison with ultrafiltration studies," Journal of Membrane
Science, vol. 217, pp. 193-206, 2003.
[5] A.M. Alklaibi, and N. Lior, "Flow modification spacers in membrane
distillation (MD) channels," in Proc. of IDA World Congress, Gran
Canaria, Spain, 2007.
[6] A. Cipollina, A. Di Miceli, J. Koschikowski, G. Micale, and L. Rizzuti,
"CFD simulation of a membrane distillation module channel,"
Desalination and Water Treatment, vol. 6, pp. 177-183, 2009.
@article{"International Journal of Chemical, Materials and Biomolecular Sciences:53701", author = "M. Shakaib and M. Ehtesham-ul Haq and I. Ahmed and R.M. Yunus", title = "Modeling the Effect of Spacer Orientation on Heat Transfer in Membrane Distillation", abstract = "Computational fluid dynamics (CFD) simulations
carried out in this paper show that spacer orientation has a major
influence on temperature patterns and on the heat transfer rates. The
local heat flux values significantly vary from high to very low values
at each filament when spacer touches the membrane surface. The
heat flux profile is more uniform when spacer filaments are not in
contact with the membrane thus making this arrangement more
beneficial. The temperature polarization is also found to be less in
this case when compared to the empty channel.", keywords = "heat transfer, membrane distillation, spacer,temperature polarization.", volume = "4", number = "12", pages = "745-4", }