1. Mechanical Engineering Department, Faculty of Engineering, Sebelas Maret University, Surakarta, Central Java, Indonesia
2. Mechanical Engineering, Universitas Sultan Ageng Tirtayasa, Serang, Banten, Indonesia
3. Research Centre for Energy Conversion and Conservation, BRIN, Jakarta, Indonesia
4. Mechanical Engineering Department, Universitas Sains Al-Qur’an (UNSIQ), Wonosobo, Central Java, Indonesia
5. Mechanical Engineering, Faculty of Engineering, Universitas Jember, Jember, East Java, Indonesia