1. Research Scholar, Dept. of Chemical Engineering, Indian Institute of Technology, Madras, Chennai-600 036, India.
2. Assistant Professor, Dept. of Chemical Engineering, Indian Institute of Technology, Madras, Chennai-600 036, India.
3. Professor, Dept. of Chemical Engineering, Indian Institute of Technology, Madras, Chennai-600 036, India (corresponding author). E-mail: spush@che.iitm.ac.in