The Heat Load Calculation

  • P. C. Koelet
  • T. B. Gray


The first element of the heat load is the thermal energy entering the room by heat transfer through walls, ceiling and floor. The equation for this is
$${Q_1} = UAdT(W)$$
where dT is T oTi,

A is the external insulated surface area in m2,

U is the overall heat-transfer coefficient in W/(m2 K).


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  1. C. G. Franke (Technishe Hogeschool Delft), Labo voor koude techniek, Delft, The Netherlands, Koeltechniek, 64 (1981).Google Scholar
  2. W. Tamm (Munich, Germany), Kälteverluste durch kühlraum öffnungen, Kältetecnik.Google Scholar

Copyright information

© P. C. Koelet 1992

Authors and Affiliations

  • P. C. Koelet
  • T. B. Gray

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