Thermal performance of a water wall

Abstract A comparison of the thermal performance of various types of south facing water walls has been made in terms of the heat flux entering an air-conditioned space through these walls. Numerical calculations for climatic conditions at Srinagar (India) show that the Transwall is more effective than the Drum water wall to meet the daytime heating load. But, a Drum water wall is better from the points of view of load levelling and day-and-night performance.