{"title":"Mathematical Models for Overall Gas Transfer Coefficient Using Different Theories and Evaluating Their Measurement Accuracy","authors":"Shashank.B. Thakre, Lalit.B. Bhuyar, Samir.J. Deshmukh","country":null,"institution":"","volume":13,"journal":"International Journal of Mechanical and Mechatronics Engineering","pagesStart":135,"pagesEnd":140,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/2399","abstract":"Oxygen transfer, the process by which oxygen is\r\ntransferred from the gaseous to liquid phase, is a vital part of the\r\nwaste water treatment process. Because of low solubility of\r\noxygen and consequent low rate of oxygen transfer, sufficient\r\noxygen to meet the requirement of aerobic waste does not enter\r\nthrough normal surface air water interface. Many theories have\r\ncome up in explaining the mechanism of gas transfer and\r\nabsorption of non-reacting gases in a liquid, of out of which, Two\r\nfilm theory is important. An exiting mathematical model\r\ndetermines approximate value of Overall Gas Transfer coefficient.\r\nThe Overall Gas Transfer coefficient, in case of Penetration theory,\r\nis 1.13 time more than that obtained in case of Two film theory.\r\nThe difference is due to the difference in assumptions in the two\r\ntheories.\r\nThe paper aims at development of mathematical model which\r\ndetermines the value of Overall Gas Transfer coefficient with\r\ngreater accuracy than the existing model.","references":null,"publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 13, 2008"}