33.3.10 Set Dual Cell Heat Exchanger Dialog Box

The Set Dual Cell Heat Exchanger dialog box allows you to define the heat exchanger parameters. See Section  14.5 for details about using this dialog box.

Controls

Name   allows you to specify a name for the dual cell heat exchanger.

Fluid Zones   allows you to specify the fluid zone parameters for the heat exchanger.

Number of Passes   specifies the number of passes for the heat exchanger.

Primary Fluid Zone   allows you to specify the fluid of the primary fluid zone for the heat exchanger.

Auxiliary Fluid Zone   allows you to specify the fluid for the auxiliary fluid zone, per pass.

The selected zones must be overlapping in physical space.

Heat Rejection   contains parameters specific to the rejection of heat in the heat exchanger.

Options   allows you to specify how the heat rejection in the heat exchanger is computed.

Fixed Heat Rejection   allows you to specify heat rejection parameters.

Fixed Inlet Temperature   allows you use total heat rejection as the desired output.

Heat Rejection Targeted   allows you to specify the heat rejection desired from the heat exchanger (available only when the Fixed Heat Rejection option is enabled).

Inlet Zone for Temperature Updates   allows ANSYS FLUENT to change the temperature of the specified inlet zone in order to match the targeted heat rejection (available only when the Fixed Heat Rejection option is enabled).

Temperature Update Under-Relaxation   controls convergence (available only when the Fixed Heat Rejection option is enabled).

Iteration Interval Between Temperature Updates   controls divergence (available only when the Fixed Heat Rejection option is enabled).

Performance Data   contains parameters for specifying the heat exchanger's performance data.

Options   allows you to choose between using raw performance data or NTU performace data.

Raw Data   allows you to specify raw performance data for the heat exchanger.

NTU Data   allows you to specify NTU performance data for the heat exchanger.

Heat Exchanger Performance Data   contains parameters concerning the heat exchanger's performance data.

NTU Table   opens the NTU Table dialog box (available only when the NTU Data option is enabled).

Heat Transfer Table   opens the Heat Transfer Data Table dialog box (see Section  3e) (available only when the Raw Data option is enabled).

Effectiveness-NTU Relation   computes the NTU values from the heat transfer data. Choose cross-flow-unmixed, parallel-flow, or counter-flow, all of which are described in this section (available only when the Raw Data option is enabled).

Reference Inlet Temperature   allows you to specify the inlet reference temperature for the primary and the auxiliary fluids. (available only when the Raw Data option is enabled).

Frontal Area   allows you to specify the frontal area for the heat exchanger.

Primary Fluid   allows you to specify a value for the Core Frontal Area for the primary fluid, or to compute the value from a surface zone using the Compute From drop-down list.

Auxiliary Fluid   allows you to specify a value for the Core Frontal Area for the auxiliary fluid, or to compute the value from a surface zone using the Compute From drop-down list.

Coupling   specifies parameters when you want to couple the heat exchanger passes.

Temperature   specifies, by default, the mass-weighted average for the temperature of the outlet of Pass 1 to the inlet of Pass 2. Similarly, the mass-weighted-average temperature of the outlet of Pass 2 will be applied at the inlet zone of Pass 3, and so on. (available only when multiple passes are specified in the Fluid Zones tab).

Plot NTU   plots the performance data curve for the selected heat exchanger. The performance data is supplied through the Performance Data tab.