Hernández, Alejandro L.; Quiñonez, José E. - In: Renewable Energy 55 (2013) C, pp. 380-391
The development of two analytical models that describe the thermal behaviour of solar air heaters of double-parallel flow and double-pass counter flow is presented. Based on the local energy balances, algebraic expressions for the efficiency factor F′ and the overall heat loss coefficient, UL,...