Wang, Wei-Wei; Wang, Liang-Bi; He, Ya-Ling - In: Applied Energy 138 (2015) C, pp. 169-182
From aspect of energy consuming to pump heat transfer fluid, there is no sound basis on which to create an optimum design of a thermal energy storage unit. Thus, it is necessary to develop a parameter to indicate the energy efficiency of such unit. This paper firstly defines a parameter that...