Model-based assessment of retrofit strategies for the extension of a small district heating system

C.K.V Trân Quâc, L. Xu, J.I. Torrens Galdiz, J.L.M. Hensen

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Abstract

This contribution aims to investigate the viability of a district heating system (DHS) on the long-term, by studying a method to extend an existing DHS with new buildings while keeping the same generation and distribution facilities. The study is conducted by simulating the DHS. The models are developed in Modelica.
Simulation results show that extending a DHS is possible under scenarios. Retrofitting the envelope of some buildings and applying a centralised control over every customer’s thermostat both give satisfying results. On the other hand, decentralised storage manages to improve indoor comfort but slightly increases the energy demand. Centralised storage proves to be very dependent on its
sizing and control strategy, and only provides poor results when non-optimal.
Original languageEnglish
Title of host publicationProceedings of the 15th International IBPSA Conference (Building Simulation 2017), August 7-9, 2017, San Francisco, USA
Place of PublicationSan Francisco, US
Pages1405-1417
Number of pages10
ISBN (Electronic)978-0-692-89710-2
Publication statusPublished - Aug 2017
Event15th International IBPSA Building Simulation Conference (BS 2017), 7-9 August 2017, San Francisco, California, USA: the 15th International Conference of IBPSA - Hyatt Regency Embarcadero, San Francisco, United States
Duration: 7 Aug 20179 Aug 2017
http://www.buildingsimulation2017.org/
http://www.buildingsimulation2017.org/

Conference

Conference15th International IBPSA Building Simulation Conference (BS 2017), 7-9 August 2017, San Francisco, California, USA
Abbreviated titleIBPSA2017
CountryUnited States
CitySan Francisco
Period7/08/179/08/17
Internet address

Keywords

  • District heating
  • Dymola
  • Retrofit

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    Trân Quâc, C. K. V., Xu, L., Torrens Galdiz, J. I., & Hensen, J. L. M. (2017). Model-based assessment of retrofit strategies for the extension of a small district heating system. In Proceedings of the 15th International IBPSA Conference (Building Simulation 2017), August 7-9, 2017, San Francisco, USA (pp. 1405-1417).