1. Lawrence Berkeley National Laboratory 1 Cyclotron Road, Mailstop 90R‐2002 94720 Berkeley, CA USA
2. University of California, Berkeley, Etcheverry Hall Department of Mechanical Engineering Hearst Ave #6141 94720 Berkeley, CA USA
3. University of California, Berkeley Transportation Sustainability Research Center University of California Richmond Field Station 1301 S. 46th Street, Building 190 94804‐3580 Richmond, CA USA
4. Polytechnic University of Turin Department of Energy Corso Duca degli Abruzzi, 24 10129 Torino Italy