1. Department of Mechanical Engineering, National Cheng Kung University, Tainan 701, Taiwan, R.O.C.
2. Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 701, Taiwan, R.O.C.
3. Research Center for Energy Technology and Strategy, National Cheng Kung, Tainan 701, Taiwan, R.O.C.