.AixLib.DataBase.Surfaces.RoughnessForHT.PolynomialCoefficients_ASHRAEHandbook

Information

Overview

Calculate the heat transfer coeficient alpha at outside surfaces depending on wind speed and surface type

Assumptions

Wind direction has no influence

Concept

alpha = D + E*V + R*V^2

References

Base data definition for record to be used in model AixLib.Utilities.HeatTransfer.HeatConv_outside

Source

• ASHRAE Handbook of Fundamentals. ASHRAE, 1989
• As cited inEnergyPlus Engineering Reference. : EnergyPlus Engineering Reference, 2011 p.56

• August 30, 2013  by Ole Odendahl:
  Awarded stars
• March 21, 2012  by Ana Constantin:
  Implemented.