1. Department of Mechanical Engineering, Faculty of Engineering, Rajamangala University of Technology Isan, Khon Kaen, Thailand
2. Centre for Alternative Energy Research and Development, Khon Kaen University, Khon Kaen, Thailand
3. Mechanical Engineering Division, Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand
4. Agricultural Engineering Division, Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand