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The first step of using the software is to select the tower type. Three types of wet-cooling towers can be designed by the software. These are,
The specification of the atmospheric conditions are discussed in this video. The input conditions are shown on a psychrometric chart. The output conditions are also shown on a psychrometric chart. Interpreting air conditions with the aid of these charts help to determine the propensity of visible plume formation.
The specification of the cooling tower dimensions are demonstrated in this video. There are separate input screens for the three types of cooling tower types.
These areas include the fill, rain zone and spray zone. These areas form the heart of the cooling tower where most of the cooling is taking place. The transfer area of the rain zone is automatically calculated. The transfer coefficient of the fill can be selected from a database of fills for counterflow and crossflow configurations.
These areas include the fill, rain zone and spray zone, and all the areas where the air encounter resistance as it flows through the cooling tower. The video shows how to specify pressure loss coefficients for the different areas of the cooling tower to determine the static pressure loss of the air through the cooling tower. The total pressure loss is used to find the operating point on a fan curve.
The specification of operational conditions are demonstrated in this video. The operating conditions are the inlet water flow rate and temperature. The air flow rate can be specified, or it can be automatically calculated from the fan curve.
The specification of fans are demonstrated in this video. A database of fan curves can be created by the user. There is also a tool to compare different fan curves. A curve fitting tool is available to help the user importing fan curves from curves supplied by fan manufacturors.
The software employs sophisticated numerical procedures to obtain convergence. This video shows how to specify the solution tolerances and other measures to obtain successful solutions. These measures include initial conditions and relaxation parameters.
Several tools are included in the software to help the user. The software needs SI units for the inputs. Unit conversions for temperature and flow rates can be conducted in the Utilities tab. Tools are also available to calculate the Merkel numbers using various models. A very basic cooling tower sizing tool is also available under the Utilities tab.
The software has three different solution modes. This video shows how to use the software to conduct design verifications. The inlet water temperature is known and the software will predict the temperature of the outlet water temperature.
The software has three different solution modes. This video shows how to use the software to design a induced draft counterflow tower to meet a specified design load. In this case the water inlet and outlet temperatures are known. The software will calculate the dimensions of various cooling towers with different fill heights and widths. The user can then select an appropriate tower.
The software has three different solution modes. This video shows how to use the software to generate performance curves.
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