Estimation of Concentration Polarization Using the Combined Film theory/ Spiegler-Kedem Model and Empirical Correlation
At a given operating pressure and in a given apparatus, concentration polarization results in an increase in the effective osmotic pressure of the feed solution on the membrane surface, a consequent decrease in the effective pressure ( P ) for fluid flow across the membrane, and progressive changes...
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| Format: | Article |
| Language: | English |
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Al-Nahrain Journal for Engineering Sciences
2008-03-01
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| Series: | مجلة النهرين للعلوم الهندسية |
| Subjects: | |
| Online Access: | https://nahje.com/index.php/main/article/view/527 |
| _version_ | 1819206604962136064 |
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| author | Taha Yaseen Khalaf |
| author_facet | Taha Yaseen Khalaf |
| author_sort | Taha Yaseen Khalaf |
| collection | DOAJ |
| description | At a given operating pressure and in a given apparatus, concentration polarization results in an increase in the effective osmotic pressure of the feed solution on the membrane surface, a consequent decrease in the effective pressure ( P ) for fluid flow across the membrane, and progressive changes in the mass transfer coefficient, product rate, and solute separation along the length of the membrane in the direction of feed flow. The problem then is to predict the
effect of concentration polarization on solute separation and on predict rate, under specified experimental condition. In the present work, the reverse osmosis
experiments were conducted in a spiral wound model to get separation data using a NaCl-water system up to 2500 ppm and cellulose acetate membrane.
The purpose of this paper is to predict and analyze the concentration polarization using a combined film theory model and empirical correlation. Therefore, the results of the experiments show that the concentration polarization affected when using different models |
| first_indexed | 2024-12-23T05:10:15Z |
| format | Article |
| id | doaj.art-6f1d6d519747474e9c96f01fe3c218c7 |
| institution | Directory Open Access Journal |
| issn | 2521-9154 2521-9162 |
| language | English |
| last_indexed | 2024-12-23T05:10:15Z |
| publishDate | 2008-03-01 |
| publisher | Al-Nahrain Journal for Engineering Sciences |
| record_format | Article |
| series | مجلة النهرين للعلوم الهندسية |
| spelling | doaj.art-6f1d6d519747474e9c96f01fe3c218c72022-12-21T17:58:59ZengAl-Nahrain Journal for Engineering Sciencesمجلة النهرين للعلوم الهندسية2521-91542521-91622008-03-01112322328527Estimation of Concentration Polarization Using the Combined Film theory/ Spiegler-Kedem Model and Empirical CorrelationTaha Yaseen Khalaf0Biomedical Dngineering Dept./ Al-Khwarizmi Engineering College / University Of BaghdadAt a given operating pressure and in a given apparatus, concentration polarization results in an increase in the effective osmotic pressure of the feed solution on the membrane surface, a consequent decrease in the effective pressure ( P ) for fluid flow across the membrane, and progressive changes in the mass transfer coefficient, product rate, and solute separation along the length of the membrane in the direction of feed flow. The problem then is to predict the effect of concentration polarization on solute separation and on predict rate, under specified experimental condition. In the present work, the reverse osmosis experiments were conducted in a spiral wound model to get separation data using a NaCl-water system up to 2500 ppm and cellulose acetate membrane. The purpose of this paper is to predict and analyze the concentration polarization using a combined film theory model and empirical correlation. Therefore, the results of the experiments show that the concentration polarization affected when using different modelshttps://nahje.com/index.php/main/article/view/527Concentration PolarizationCombined FilmEmpirical Correlation |
| spellingShingle | Taha Yaseen Khalaf Estimation of Concentration Polarization Using the Combined Film theory/ Spiegler-Kedem Model and Empirical Correlation مجلة النهرين للعلوم الهندسية Concentration Polarization Combined Film Empirical Correlation |
| title | Estimation of Concentration Polarization Using the Combined Film theory/ Spiegler-Kedem Model and Empirical Correlation |
| title_full | Estimation of Concentration Polarization Using the Combined Film theory/ Spiegler-Kedem Model and Empirical Correlation |
| title_fullStr | Estimation of Concentration Polarization Using the Combined Film theory/ Spiegler-Kedem Model and Empirical Correlation |
| title_full_unstemmed | Estimation of Concentration Polarization Using the Combined Film theory/ Spiegler-Kedem Model and Empirical Correlation |
| title_short | Estimation of Concentration Polarization Using the Combined Film theory/ Spiegler-Kedem Model and Empirical Correlation |
| title_sort | estimation of concentration polarization using the combined film theory spiegler kedem model and empirical correlation |
| topic | Concentration Polarization Combined Film Empirical Correlation |
| url | https://nahje.com/index.php/main/article/view/527 |
| work_keys_str_mv | AT tahayaseenkhalaf estimationofconcentrationpolarizationusingthecombinedfilmtheoryspieglerkedemmodelandempiricalcorrelation |