1. SINTEF Energy Research, Sem
Sælands vei 11, 7491 Trondheim, Norway
2. Hawaii
Natural Energy Institute, School of Ocean and Earth Science and Technology, University of Hawaii at Manoa, Honolulu, Hawaii 96822, United States
3. Biosystems
Engineering, University Ghent, Coupure Links 653, 9000 Gent, Belgium
4. Department
of Energy and Process Engineering, Norwegian University of Science and Technology, Kolbjørn Hejes vei 1B, 7491 Trondheim, Norway