1. Institute of Sustainable EnergyUniversiti Tenaga Nasional Jalan IKRAM–UNITEN 43000 Kajang Selangor Malaysia
2. Department of Mechanical Engineering, College of EngineeringUniversiti Tenaga Nasional Jalan IKRAM–UNITEN 43000 Kajang Selangor Malaysia
3. Department of Electronic & Communication Engineering, College of EngineeringUniversiti Tenaga Nasional Jalan IKRAM–UNITEN 43000 Kajang Selangor Malaysia