1. Department of Energy and Process Engineering, Norwegian University of Science and Technology (NTNU), Kolbjørn Hejes vei 1B, NO-7491 Trondheim, Norway
2. Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, No. 800 Dongchuan Rd., Minhang District, Shanghai 200240, China
3. SINTEF Energy Research, Sem Sælands vei 11, Trondheim NO-7465, Norway