Annual simulation of outdoor thermal comfort with TRNSYS

Marion Hiller; Ata Chokhachian; Christian Frenzel; Pablo Arango; Wolfgang Kessling; Stefan Holst; Thomas Auer

doi:10.26868/25222708.2021.30651

Annual simulation of outdoor thermal comfort with TRNSYS

Marion Hiller
, Ata Chokhachian
, Christian Frenzel
, Pablo Arango
, Wolfgang Kessling
, Stefan Holst
, Thomas Auer

Chair of Building Technology and Climate Responsive Design

Transsolar Energietechnik GmbH
Technical University of Munich

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

This paper presents the modelling enhancements of the multizone model of TRNSYS and its GUI TRNLizard for the dynamic evaluation of the thermal behaviour of outdoor urban spaces. The developed approaches for detailed radiation modelling based on surface discretization and raytracing in 3-dimensional space extended the capabilities of the thermal building model to consider interior and exterior vegetation volumes. For the implementation special care was taken to enable both, the application of empirical correlations/assumptions for a simplified and fast modelling as well as the integration/coupling to detailed simulation results from other domains such as vegetation models and CFD. The validation showed that the improvements were successfully integrated. A comparison with measured data is still pending. The urban space model has been applied to the Bordeauxplatz in Munich. The case study showed that dynamic annual simulation results like the frequency distribution of comfort conditions provide very useful information for urban planning.

Original language	English
Title of host publication	BS 2021 - Proceedings of Building Simulation 2021
Subtitle of host publication	17th Conference of IBPSA
Editors	Dirk Saelens, Jelle Laverge, Wim Boydens, Lieve Helsen
Publisher	International Building Performance Simulation Association
Pages	812-819
Number of pages	8
ISBN (Electronic)	9781775052029
DOIs	https://doi.org/10.26868/25222708.2021.30651
State	Published - 2022
Event	17th IBPSA Conference on Building Simulation, BS 2021 - Bruges, Belgium Duration: 1 Sep 2021 → 3 Sep 2021

Publication series

Name	Building Simulation Conference Proceedings
ISSN (Print)	2522-2708

Conference

Conference	17th IBPSA Conference on Building Simulation, BS 2021
Country/Territory	Belgium
City	Bruges
Period	1/09/21 → 3/09/21

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 11 Sustainable Cities and Communities

Access to Document

10.26868/25222708.2021.30651

Cite this

Hiller, M., Chokhachian, A., Frenzel, C., Arango, P., Kessling, W., Holst, S., & Auer, T. (2022). Annual simulation of outdoor thermal comfort with TRNSYS. In D. Saelens, J. Laverge, W. Boydens, & L. Helsen (Eds.), BS 2021 - Proceedings of Building Simulation 2021: 17th Conference of IBPSA (pp. 812-819). (Building Simulation Conference Proceedings). International Building Performance Simulation Association. https://doi.org/10.26868/25222708.2021.30651

Hiller, Marion ; Chokhachian, Ata ; Frenzel, Christian et al. / Annual simulation of outdoor thermal comfort with TRNSYS. BS 2021 - Proceedings of Building Simulation 2021: 17th Conference of IBPSA. editor / Dirk Saelens ; Jelle Laverge ; Wim Boydens ; Lieve Helsen. International Building Performance Simulation Association, 2022. pp. 812-819 (Building Simulation Conference Proceedings).

@inproceedings{c4eb134261b140139a9ae5f2460c0177,

title = "Annual simulation of outdoor thermal comfort with TRNSYS",

abstract = "This paper presents the modelling enhancements of the multizone model of TRNSYS and its GUI TRNLizard for the dynamic evaluation of the thermal behaviour of outdoor urban spaces. The developed approaches for detailed radiation modelling based on surface discretization and raytracing in 3-dimensional space extended the capabilities of the thermal building model to consider interior and exterior vegetation volumes. For the implementation special care was taken to enable both, the application of empirical correlations/assumptions for a simplified and fast modelling as well as the integration/coupling to detailed simulation results from other domains such as vegetation models and CFD. The validation showed that the improvements were successfully integrated. A comparison with measured data is still pending. The urban space model has been applied to the Bordeauxplatz in Munich. The case study showed that dynamic annual simulation results like the frequency distribution of comfort conditions provide very useful information for urban planning.",

author = "Marion Hiller and Ata Chokhachian and Christian Frenzel and Pablo Arango and Wolfgang Kessling and Stefan Holst and Thomas Auer",

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year = "2022",

doi = "10.26868/25222708.2021.30651",

language = "English",

series = "Building Simulation Conference Proceedings",

publisher = "International Building Performance Simulation Association",

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editor = "Dirk Saelens and Jelle Laverge and Wim Boydens and Lieve Helsen",

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Hiller, M, Chokhachian, A, Frenzel, C, Arango, P, Kessling, W, Holst, S & Auer, T 2022, Annual simulation of outdoor thermal comfort with TRNSYS. in D Saelens, J Laverge, W Boydens & L Helsen (eds), BS 2021 - Proceedings of Building Simulation 2021: 17th Conference of IBPSA. Building Simulation Conference Proceedings, International Building Performance Simulation Association, pp. 812-819, 17th IBPSA Conference on Building Simulation, BS 2021, Bruges, Belgium, 1/09/21. https://doi.org/10.26868/25222708.2021.30651

Annual simulation of outdoor thermal comfort with TRNSYS. / Hiller, Marion; Chokhachian, Ata; Frenzel, Christian et al.
BS 2021 - Proceedings of Building Simulation 2021: 17th Conference of IBPSA. ed. / Dirk Saelens; Jelle Laverge; Wim Boydens; Lieve Helsen. International Building Performance Simulation Association, 2022. p. 812-819 (Building Simulation Conference Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Hiller, Marion

AU - Chokhachian, Ata

AU - Frenzel, Christian

AU - Arango, Pablo

AU - Kessling, Wolfgang

AU - Holst, Stefan

AU - Auer, Thomas

PY - 2022

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AB - This paper presents the modelling enhancements of the multizone model of TRNSYS and its GUI TRNLizard for the dynamic evaluation of the thermal behaviour of outdoor urban spaces. The developed approaches for detailed radiation modelling based on surface discretization and raytracing in 3-dimensional space extended the capabilities of the thermal building model to consider interior and exterior vegetation volumes. For the implementation special care was taken to enable both, the application of empirical correlations/assumptions for a simplified and fast modelling as well as the integration/coupling to detailed simulation results from other domains such as vegetation models and CFD. The validation showed that the improvements were successfully integrated. A comparison with measured data is still pending. The urban space model has been applied to the Bordeauxplatz in Munich. The case study showed that dynamic annual simulation results like the frequency distribution of comfort conditions provide very useful information for urban planning.

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Hiller M, Chokhachian A, Frenzel C, Arango P, Kessling W, Holst S et al. Annual simulation of outdoor thermal comfort with TRNSYS. In Saelens D, Laverge J, Boydens W, Helsen L, editors, BS 2021 - Proceedings of Building Simulation 2021: 17th Conference of IBPSA. International Building Performance Simulation Association. 2022. p. 812-819. (Building Simulation Conference Proceedings). doi: 10.26868/25222708.2021.30651

Annual simulation of outdoor thermal comfort with TRNSYS

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UN SDGs

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