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Mohan, D.
- Metal Ion Removal from the Aqueous Feed Using PVDF/PS Blend Ultrafiltration Membranes
Abstract Views :424 |
PDF Views:113
Authors
K. H. Shobana
1,
D. Mohan
2
Affiliations
1 Deparment of Physics, Saveetha Engineering College, Thandalam, Chennai- 602 105, IN
2 Membrane Laboratory, Department of Chemical Engineering, A.C.College of Technology, Anna University, Chennai- 600 025, IN
1 Deparment of Physics, Saveetha Engineering College, Thandalam, Chennai- 602 105, IN
2 Membrane Laboratory, Department of Chemical Engineering, A.C.College of Technology, Anna University, Chennai- 600 025, IN
Source
Indian Journal of Science and Technology, Vol 3, No 6 (2010), Pagination: 663-666Abstract
Polyvinyledenefluoride-polystyrene (PVDF/PS) blend ultrafiltration membranes were prepared using phase inversion technique. Casting solutions were prepared with different compositions of poly (vinylidene fluoride) (PVDF) and polystyrene (PS) both in the presence and absence of the additive, poly (vinylpyrolidone) (PVP) using dimethylacetamide as solvent. The effects of compositions of PS and concentrations of PVP on shrinkage ratio, pure water flux and percentage of water content of the blend ultrafiltration membranes were studied. The application of the PVDF/PS blend membranes in separation of toxic heavy metal ions from aqueous streams was also attempted and the results are discussed.Keywords
Ultrafiltration Membrane, Heavy Metal SeparationFull Text
References
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- Experimental Investigation of Heat Transfer Study on Plate Fin Heat Exchangers with Wavy Fins
Abstract Views :225 |
PDF Views:0
Authors
Affiliations
1 Department of Mechanical Engineering, SRM University, Kattankulathur - 603203, Kancheepuram District, Tamil Nadu, IN
1 Department of Mechanical Engineering, SRM University, Kattankulathur - 603203, Kancheepuram District, Tamil Nadu, IN
Source
Indian Journal of Science and Technology, Vol 9, No 37 (2016), Pagination:Abstract
Objectives: This study investigates the variation of heat transfer parameters using wavy fin located in the plate heat exchanger. Methods/Statistical Analysis: Velocity and temperature relations, fanning friction factor for iso-temperature and Colburn factor are evaluated for different flow rates of Reynolds Number from 200 to 2000 and its various fin pitches within 9 mm respectively. Similarities were found between this experimental data and semi empirical correlations of Plate Heat Exchanger. Findings: The various parameters are evaluated using this experimental setup and we obtained the optimum j/f for swirl flow regime with Reynolds Number of around 200 to 210. The general correlations for friction factor and Colburn factor were derived by multiple linear regression analysis. Application/Improvements: This studies show the periodic growth of parameters in the wall region of cross section of cross flow heat exchanger. Also we obtained the higher heat transfer co-efficient by using wavy fin with reasonable pressure fall.Keywords
Correlations, Heat Transfer, Plate Heat Exchangers, Wavy Fins.Full Text