Modeling of heat transfer in rooms in the modelica "buildings" library

Michael Wetter, Wangda Zuo, Thierry Stephane Nouidui

Research output: Contribution to conferencePaperpeer-review

23 Scopus citations

Abstract

This paper describes the implementation of the room heat transfer model in the free open-source Modelica "Buildings" library. The model can be used as a single room or to compose a multizone building model. We discuss how the model is decomposed into submodels for the individual heat transfer phenomena. We also discuss the main physical assumptions. The room model can be parameterized to use different modeling assumptions, leading to linear or non-linear differential algebraic systems of equations. We present numerical experiments that show how these assumptions affect computing time and accuracy for selected cases of the ANSI/ASHRAE Standard 140-2007 envelop validation tests.

Original languageEnglish (US)
Pages1096-1103
Number of pages8
StatePublished - Dec 1 2011
Event12th Conference of International Building Performance Simulation Association Building Simulation 2011, BS 2011 - Sydney, NSW, Australia
Duration: Nov 14 2011Nov 16 2011

Other

Other12th Conference of International Building Performance Simulation Association Building Simulation 2011, BS 2011
CountryAustralia
CitySydney, NSW
Period11/14/1111/16/11

ASJC Scopus subject areas

  • Computer Science Applications
  • Building and Construction
  • Architecture
  • Modeling and Simulation

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