AixLib.Fluid.SolarCollectors.Controls.BaseClasses.GCritCalc

# .AixLib.Fluid.SolarCollectors.Controls.BaseClasses.GCritCalc

Model calculating the critical insolation level

## Information

This component calculates the solar radiation necessary for the fluid in the collector to gain heat. It is used in the model AixLib.Fluid.SolarCollectors.Controls.CollectorPump.

The critical solar radiation level is calculated using Equation 6.8.2 in Duffie and Beckman (2006). It is

GTC=FRUL (TIn-TEnv) /(FR(τα))

where GTC is the critical solar radiation, FRUL is the heat loss coefficient, TIn is the inlet temperature, TEnv is the ambient temperature, and FR(τα) is the maximum efficiency.

#### References

J.A. Duffie and W.A. Beckman 2006, Solar Engineering of Thermal Processes (3rd Edition), John Wiley & Sons, Inc.

## Revisions

- February 15, 2024, by Jelger Jansen:
  Refactor model.
  This is for Buildings, #3604.
- February 15, 2013 by Peter Grant
  First implementation

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