Calculation of the heat loss of hot-storage tanks (TANK)
TANK module package
Storage tanks might have to be heated to compensate for the cooler climatic conditions of the environment. In order to determine the required heat duty it is necessary to calculate the various types of heat losses from the surfaces of the tank.
TANK calculates the heat losses of uninsulated, insulated and heated storage tanks. The floor plan of the tank might be round, rectangular or arbitrary.
The heat losses through the bottom to the ground, through the wetted wall, through the dry wall or through the roof are determined separately. For the heat loss through the roof, the program considers also the heat loss due to radiation between the surface of the liquid and the roof.
When calculating the heating performance the program distinguishes between an inner heating (performed by a pipe coil or tube bundle located inside the tank) and an outer heating (performed by welded or otherwise attached pipe coils or tube bundles outside the tank). A determination of the heat loss is required!
The TANK module package (comprising several VDI Heat Atlas modules and modules BIL, LUFT, TANK, N2, TOIL, HFO) performs the calculations by using specialized modules. A quick result is achieved with only few input values.
The calculations are based on the VDI Heat Atlas approaches for heat transfer, free convection, etc.