- #Cooling tower design calculation software full#
- #Cooling tower design calculation software software#
- #Cooling tower design calculation software free#
This is the fan power (W) at the design air flow rate specified under Design air flow rate. In which a fan pressure rise of 190 Pa and total fan efficiency of 0.5 are assumed. If auto-sized, the design air flow rate is calculated as follows: Alternately, this field can be auto-sized.
A value of greater than zero must be defined regardless of the tower performance input method. This numeric field contains the design air flow rate induced by the tower fan (in m 3/s or ft3/min).
#Cooling tower design calculation software software#
If the supplied name is not unique, the software will automatically append a backslash and integer to ensure that there are no duplicate names. This is the name that you assign to the cooling tower which should be unique. You can then access the edit dialog by right-clicking the mouse and selecting the Edit selected component option or alternatively, select the Edit selected component tool from the toolbar. To edit the data associated with a cooling tower, you first need to select the component by moving the mouse cursor over it and then clicking the mouse button to select it. Basin heater (we assume that there is a common basin).
#Cooling tower design calculation software free#
#Cooling tower design calculation software full#
In this case, the fan runs at full speed for the entire time-step.Ĭooling towers here are “wet” and consume water through evaporation, drift, and blow-down. If the capacity control is FluidBypass, the model determines the fraction of water flow to be bypassed while the remaining water goes through the tower cooling media and gets cooled, then the two water flows mix to meet the setpoint temperature. Cyclic losses are not taken into account. the tower fan is on for the entire simulation time-step and the tower fan is off for the entire simulation time-step). If the capacity control is FanCycling, the model assumes that part-load operation is represented by a simple linear interpolation between two steady-state regimes (i.e. If the exiting water temperature remains above the set point after “free convection” is modelled, then the tower fan is turned on to reduce the exiting water temperature to the set point. If the exiting water temperature based on “free convection” is below the set point, the tower will operate in FluidBypass mode whereby a portion of the water goes through the tower media and gets cooled while the remaining water flow gets bypassed, two water flows then mix together trying to meet the water setpoint temperature. If the exiting water temperature based on “free convection” is at or below the set point, then the tower fan is not turned on. The model first checks to determine the impact of “free convection”, if specified by the user, on the tower exiting water temperature.
The set point schedule value is defined by the condenser loop outlet setpoint manager: The cooling tower seeks to maintain the temperature of the water exiting the cooling tower at (or below) a set point. If the user wants the model to account for “free convection”, they must specify the corresponding airflow rate and heat transfer coefficient-area product (UA), or the nominal tower capacity during this mode of operation.
The model will also account for tower performance in the “free convection” regime, when the tower fan is off but the water pump remains on and heat transfer still occurs (albeit at a low level). Regardless of which method is chosen, the design airflow rate and corresponding fan power must be specified. The user must define tower performance via one of two methods: design heat transfer coefficient-area product (UA) and design water flow rate, or nominal tower capacity at a specific rating point. The cooling tower is modelled as a counter-flow heat exchanger with a single-speed fan (induced draft configuration) based on Merkel’s theory. Cooling towers are components that may be added to condenser loops.