modelMachinesDIN18599

Heat flow due to machines based on DIN 18599 (number of people and activity type of machines)

Extends from BaseClasses.PartialInternalGain.

Information

Overview

Heat source with convective and radiative component. The load is determined by a schedule and the type of activity.

Concept

The schedule sets the times when the machines are used. They tend to be used more when people are present in the room, and go on stand-by when people are absent from the room.

The schedule describes the machines corresponding to only one person, and can take values from 0 to 1. For more people, a factor, nrPeople, is provided as parameter.

The type of activity determines the load for machines in the room for one person according to DIN 18599-10. The following values are used:

DIN 18599-10 activity level and produces heat output
Activity Type Heat Load [W]

1

50

2

100

3

150

References

DIN 18599-10

Parameters

TypeNameDefaultDescription
AixLib.BoundaryConditions.InternalGains.Types.MachineActivityactivityTypeAixLib.BoundaryConditions.InternalGains.Types.MachineActivity.middleMachine activity
RealnrPeople1.0Number of people with machines
Modelica.Units.SI.AreaareaSurfaceMachinesTotalmax(1e-4, surfaceMachine*nrPeople)Total surface area of all machines (radiative heat source) (for a room in a single-family hous e.g. 2 m2)

Revisions

  • March 30, 2020 by Philipp Mehrfeld:
    #886: Summarize models to partial model. Make all models dependant from a relative input 0..1. Many refactorings.
  • October 19, 2016  by Ana Constantin:
    Corrected documentation to refer to machines directly
  • October 21, 2014  by Ana Constantin:
    Added a lower positive limit to the surface area, so it will not lead to a division by zero
  • Mai 19, 2014  by Ana Constantin:
    Uses components from MSL and respects the naming conventions
  • May 07, 2013  by Ole Odendahl:
    Added documentation and formatted appropriately