Meibodi, SS, Rees, S orcid.org/0000-0003-4869-1632 and Yang, D
(2020)
Modelling the Dynamic Thermal Response of Turbulent Fluid Flow Through Pipelines.
In: Corrado, V, Fabrizio, E, Gasparella, A and Patuzzi, F, (eds.)
Proceedings of Building Simulation 2019: 16th Conference of IBPSA.
Building Simulation 2019: 16th Conference of IBPSA, 02-04 Sep 2019, Rome, Italy.
International Building Performance Simulation Association
ISBN 978-1-7750520-1-2
Abstract
The transient behaviour of pipe systems is important in many forms of thermal system such as domestic hot water, building heating, cooling and district thermal networks. In this study, different approaches to modelling the dynamic thermal response of pipelines are investigated through applying three forms of discretized one-dimensional flow and heat transfer model. These were further compared with fully three-dimensional finite volume method (FVM)calculations. Firstly, the models were examined to predict the pipe thermal response considering the thermal capacity and longitudinal dispersion of turbulent fluid flow to step changes in the inlet temperature of a ideally insulated pipe. A model is pro-posed combining features of plug-flow n-continuously stirred tanks and treatment of the nodes to take into account the effect of thermal capacitance of the pipe wall as well as the convective heat transfer from the pipe outer surface. The results elucidated that the proposed model is not only able to capture the out-let temperature changes due to a step change in the very good agreement against the detailed 3D model but also offers advantages in computational cost com-pared with the 3D model. The proposed model can be simply implemented in dynamic system simulation tools. The model is to be extended to include dynamic ground heat transfer effects.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Editors: |
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Copyright, Publisher and Additional Information: | © 2020, International Building Performance Simulation Association. This is an author produced version of an article published in Proceedings of Building Simulation 2019: 16th Conference of IBPSA. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 05 Jun 2019 09:36 |
Last Modified: | 24 Apr 2020 03:03 |
Published Version: | http://www.ibpsa.org/building-simulation-2019 |
Status: | Published |
Publisher: | International Building Performance Simulation Association |
Identification Number: | 10.26868/25222708.2019.210473 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:146076 |