Current Areas of Research
(a) Thermodynamic and Transport Properties of Liquid Mixtures
(b) Excess thermodynamic properties
(c) Prediction of thermodynamic and Thermoacoustical properties.
(d) Renewable , New and Non Conventional Energy
RESEARCH UNDERWAY
The research work involves determination of excess properties of binary and multicomponent liquid mixtures as well as prediction of thermodynamic properties of binary and multicomponent liquid mixtures along with various thermodynamic excess properties. For this, experimentally determined ultrasonic velocity and density data generated either in the laboratory or from literature is taken as reference and by employing various empirical ,semi-empirical relations and statistical mechanical theories we try to predict various thermodynamic parameters like isentropic compressibility, bs, isothermal compressibility, bT, coefficient of thermal expansion, a, non- linearity parameter, B/A, etc. Data of pure components is also employed and use is made of statistical mechanical theories like Flory theory to predict various thermodynamic parameters like density, surface tension, transport properties like viscosity and ultrasonic velocity of binary and multicomponent liquid mixtures. Along with the prediction of the aforementioned parameters , evaluation of various excess properties like excess volume , excess enthalpy and excess energy was and is still being carried out. Excess properties help significantly in predicting the nature of intermolecular interactions taking place in the multicomponent liquid mixtures also gives a measure of their deviation form ideality.
Computation of thermoacoustical parameters like Sharma , Huggins parameter etc. to predict the available volume and intermolecular free length to binary and multicomponent liquid systems is also being carried out.. This was a novel approach in this direction and gives much better results than the well established thermodynamic and ultrasonic methods in existence used for the computation of these parameters. Both the investigations have been published in PhysChemComm in 2002 and 2003 ( a RSC online journal).One paper is in press (Acta Acustica-2010). For the first time, to the best of our knowledge, a new theoretical approach for predicting excess internal pressure has also been recently published[Journal of Molecular Liquids,124,121-123(2006)]. Recently I have developed a keen interest in Renewable Energy resulting in a review paper [Renewable Sustainable Energy Reviews:14,2086-2094(2010); Impact Factor - 4.9)] and another one is communicated .
The aim of the present work is to provide the industry with a database since with addition of each new component, experimental determination of thermodynamic properties for multicomponent systems is tedious, time consuming and very expensive affair. By predicting the various properties and parameters, we are able to provide the researchers with a database which can be exploited in future by academicians for furthering the cause of science or by entrepreneurs for the benefit of industry.