.Buildings.Fluid.HeatExchangers.BaseClasses.CoilRegister

Information

Register of a heat exchanger with dynamics on the fluids and the solid. The register represents one array of pipes that are perpendicular to the air stream. The hA value for both fluids is an input. The driving force for the heat transfer is the temperature difference between the fluid volumes and the solid in each heat exchanger element.

Contents

Name	Description
Medium1	Medium 1 in the component
Medium2	Medium 2 in the component

Revisions

• October 19, 2017, by Michael Wetter:
  Changed initialization of pressure from a constant to a parameter.
  This is for Buildings, issue 1013.
• February 5, 2015, by Michael Wetter:
  Changed initalize_p from a parameter to a constant. This is only required in finite volume models of heat exchangers (to avoid consistent but redundant initial conditions) and hence it should be set as a constant.
• December 22, 2014 by Michael Wetter:
  Removed Modelica.Fluid.System to address issue #311.
• August 10, 2014, by Michael Wetter:
  Reformulated the multiple iterators in the sum function as this language construct is not supported in OpenModelica.
• July 3, 2014, by Michael Wetter:
  Added parameters initialize_p1 and initialize_p2. This is required to enable the coil models to initialize the pressure in the first volume, but not in the downstream volumes. Otherwise, the initial equations will be overdetermined, but consistent. This change was done to avoid a long information message that appears when translating models.
• June 26, 2014, by Michael Wetter:
  Removed parameters energyDynamics1 and energyDynamics2, and used instead of these two parameters the new parameter energyDynamics. Removed parameters steadyState_1 and steadyState_2. This was done as this complexity is not required.
• August 12, 2008 by Michael Wetter:
  Introduced option to compute each medium using a steady state model or a dynamic model.
• March 25, 2008, by Michael Wetter:
  First implementation.