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Title: Modelica buildings library

Abstract

This paper describes the Buildings library, a free open-source library that is implemented in Modelica, an equation-based object-oriented modeling language. The library supports rapid prototyping, as well as design and operation of building energy and control systems. First, we describe the scope of the library, which covers HVAC systems, multi-zone heat transfer and multi-zone airflow and contaminant transport. Next, we describe differentiability requirements and address how we implemented them. We describe the class hierarchy that allows implementing component models by extending partial implementations of base models of heat and mass exchangers, and by instantiating basic models for conservation equations and flow resistances. We also describe associated tools for pre- and post-processing, regression tests, co-simulation and real-time data exchange with building automation systems. Furthermore, the paper closes with an example of a chilled water plant, with and without water-side economizer, in which we analyzed the system-level efficiency for different control setpoints.

Authors:
 [1];  [1];  [1];  [1]
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  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1249559
Report Number(s):
LBNL-1002944
Journal ID: ISSN 1940-1493; ir:1002944
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Building Performance Simulation
Additional Journal Information:
Journal Volume: 7; Journal Issue: 4; Journal ID: ISSN 1940-1493
Publisher:
Taylor & Francis
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 97 MATHEMATICS AND COMPUTING; equation-based; object-oriented; modular modelling; building simulation; co-simulation

Citation Formats

Wetter, Michael, Zuo, Wangda, Nouidui, Thierry S., and Pang, Xiufeng. Modelica buildings library. United States: N. p., 2013. Web. doi:10.1080/19401493.2013.765506.
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Wetter, Michael, Zuo, Wangda, Nouidui, Thierry S., & Pang, Xiufeng. Modelica buildings library. United States. https://doi.org/10.1080/19401493.2013.765506
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Wetter, Michael, Zuo, Wangda, Nouidui, Thierry S., and Pang, Xiufeng. Wed . "Modelica buildings library". United States. https://doi.org/10.1080/19401493.2013.765506. https://www.osti.gov/servlets/purl/1249559.
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@article{osti_1249559,
title = {Modelica buildings library},
author = {Wetter, Michael and Zuo, Wangda and Nouidui, Thierry S. and Pang, Xiufeng},
abstractNote = {This paper describes the Buildings library, a free open-source library that is implemented in Modelica, an equation-based object-oriented modeling language. The library supports rapid prototyping, as well as design and operation of building energy and control systems. First, we describe the scope of the library, which covers HVAC systems, multi-zone heat transfer and multi-zone airflow and contaminant transport. Next, we describe differentiability requirements and address how we implemented them. We describe the class hierarchy that allows implementing component models by extending partial implementations of base models of heat and mass exchangers, and by instantiating basic models for conservation equations and flow resistances. We also describe associated tools for pre- and post-processing, regression tests, co-simulation and real-time data exchange with building automation systems. Furthermore, the paper closes with an example of a chilled water plant, with and without water-side economizer, in which we analyzed the system-level efficiency for different control setpoints.},
doi = {10.1080/19401493.2013.765506},
journal = {Journal of Building Performance Simulation},
number = 4,
volume = 7,
place = {United States},
year = {Wed Mar 13 00:00:00 EDT 2013},
month = {Wed Mar 13 00:00:00 EDT 2013}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1080/19401493.2013.765506
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Citation Metrics:
Cited by: 248 works
Citation information provided by
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Figures / Tables:

Figure 1 Figure 1: Plot of δ φ(δ, x).
All figures and tables (11 total)
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Works referenced in this record:

Object-oriented sub-zonal modelling for efficient energy-related building simulation
journal, December 2011

  • Bonvini, Marco; Leva, Alberto
  • Mathematical and Computer Modelling of Dynamical Systems, Vol. 17, Issue 6
  • DOI: 10.1080/13873954.2011.592143

Neue objektorientierte hygrothermische Modellbibliothek zur Ermittlung des hygrothermischen und hygienischen Komforts in Räumen
journal, October 2009

  • Nouidui, Thierry; Sedlbauer, Klaus; Nytsch-Geusen, Christoph
  • Bauphysik, Vol. 31, Issue 5
  • DOI: 10.1002/bapi.200910036

Modelica-based modelling and simulation to support research and development in building energy and control systems
journal, May 2009

Co-simulation of building energy and control systems with the Building Controls Virtual Test Bed
journal, September 2011

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      Figures / Tables found in this record:

      Figure 1 (p. 12)figure
      Figure 2 (p. 14)figure
      Figure 3 (p. 16)figure
      Figure 4 (p. 21)figure
      Figure 5 (p. 23)figure
      Figure 6 (p. 25)figure
      Figure 7 (p. 26)figure
      Figure 8 (p. 27)figure
      Figure 9 (p. 28)figure
      Figure 10 (p. 29)figure
      Figure 11 (p. 30)figure
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