BuildingSystems.Fluid.HeatExchangers.BaseClasses.HADryCoil

# .BuildingSystems.Fluid.HeatExchangers.BaseClasses.HADryCoil

Sensible convective heat transfer model for air to water coil

## Information

Model for sensible convective heat transfer coefficients for an air to water coil.

This model computes the convective heat transfer coefficient for an air to water coil. The parameters allow a user to enable or disable, individually for each medium, the mass flow and/or the temperature dependence of the convective heat transfer coefficients. For a detailed explanation of the equation, see the references below.

#### References

- Wetter Michael, Simulation model finned water-air-coil without condensation, LBNL-42355, Lawrence Berkeley National Laboratory, Berkeley, CA, 1999.
- Wetter Michael, Simulation model air-to-air plate heat exchanger, LBNL-42354, Lawrence Berkeley National Laboratory, Berkeley, CA, 1999.

## Revisions

- April 9, 2017, by Michael Wetter:
  Corrected coefficient in Taylor expansion of `x_a`.
  This is for #698.
- June 8, 2010, by Michael Wetter:
  Fixed bug in computation of `s_w`. The old implementation used the current inlet water temperature instead of the design condition that corresponds to `UA_nominal`.
- April 16, 2008, by Michael Wetter:
  First implementation.

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