1. Department of Materials and Energy Sciences and Engineering, The Nelson Mandela African Institution of Science and Technology, P.O. Box 447 Arusha, Tanzania
2. Water Infrastructure and Sustainable Energy Futures (WISE-Futures) Centre, The Nelson Mandela African Institution of Science and Technology, Nelson Mandela Road Tengeru, P.O. Box 9124 Nelson Mandela, Arusha, Tanzania
3. Department of Physics, College of Natural and Mathematical Sciences, University of Dodoma, P.O. Box 338 Dodoma, Tanzania
4. Department of Mechanical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do 15588, Republic of Korea
5. BK21 FOUR ERICA-ACE Center, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do 15588, Republic of Korea