Quality of energy 1 kJ electricity power <-1kJ heat 1 kJ chemical energy <-1kJ heat 300 上游充通大学 Mar/29,Wed,2017 3 SHANGHAI JLAO TONG UNIVERSITYMar/29, Wed, 2017 3 Quality of energy 1 kJ electricity power <-> 1kJ heat 1 kJ chemical energy <-> 1kJ heat