AixLib.Fluid.HeatExchangers.ActiveBeams.Data.BaseClasses.TemperatureDifference

# .AixLib.Fluid.HeatExchangers.ActiveBeams.Data.BaseClasses.TemperatureDifference

Record for temperature difference

## Information

Data record for performance data that describe the normalized temperature difference versus the change in the rate of heating or cooling. The normalized temperature difference is defined as

rΔTi= ΔTi ⁄ ΔTnominal = (Twi-Tz) ⁄ (Tw,nominal-Tz),

where Twi is the water inlet temperature, Tz is the zone air temperature and Tw,nominal is the nominal water inlet temperature.

The normalized temperature difference rΔT must be strictly increasing, i.e., rΔTi < rΔTi+1. Both vectors, rΔT and f must have the same size.

## Revisions

- June 13, 2016, by Michael Wetter:
  Revised implementation.
- May 20, 2016, by Alessandro Maccarini:
  First implementation.

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