1. School of Mechanical Engineering, Faculty of Engineering, University of Leeds, Leeds, UK;
2. Renewable Energy Research Centre, University of Anbar, Ramadi, Al Anbar Province, Iraq;
3. School of Mechanical, Aerospace and Automotive Engineering, Faculty of Engineering, Environment and Computing, Coventry University, Coventry, UK;
4. School of Chemical and Process Engineering, Faculty of Engineering, University of Leeds, Leeds, UK;
5. School of Civil Engineering, Faculty of Engineering, University of Leeds, Leeds, UK