Thermal Transients in District Heating Systems
Abstract
Heat fluxes in a district heating pipeline systems need to be controlled on the scale from minutes to an hour to adjust to evolving demand. There are two principal ways to control the heat flux - keep temperature fixed but adjust velocity of the carrier (typically water) or keep the velocity flow steady but then adjust temperature at the heat producing source (heat plant). Here, we study the latter scenario, commonly used for operations in Russia and Nordic countries, and analyze dynamics of the heat front as it propagates through the system. Steady velocity flows in the district heating pipelines are typically turbulent and incompressible. Changes in the heat, on either consumption or production sides, lead to slow transients which last from tens of minutes to hours. We classify relevant physical phenomena in a single pipe, e.g. turbulent spread of the turbulent front. We then explain how to describe dynamics of temperature and heat flux evolution over a network efficiently and illustrate the network solution on a simple example involving one producer and one consumer of heat connected by “hot” and “cold” pipes. We conclude the manuscript motivating future research directions.
- Authors:
-
[1];
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Skolkovo Inst. of Science and Technology, Moscow (Russia)
- Russian Academy of Sciences (RAS), Irkutsk (Russian Federation). Melentiev Energy Systems Inst. of Siberian Branch
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Electricity (OE)
- OSTI Identifier:
- 1417810
- Report Number(s):
- LA-UR-17-20436
Journal ID: ISSN 0360-5442
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Energy (Oxford)
- Additional Journal Information:
- Journal Name: Energy (Oxford); Journal Volume: 184; Journal ID: ISSN 0360-5442
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 24 POWER TRANSMISSION AND DISTRIBUTION; Energy Sciences; District Heating Network (DHN); Thermal Front; Pipeline System; Turbulent Diffusion; Dynamics; Networks; Control; Identification
Citation Formats
Chertkov, Michael, and Novitsky, Nikolai N. Thermal Transients in District Heating Systems. United States: N. p., 2018.
Web. doi:10.1016/j.energy.2018.01.049.
Chertkov, Michael, & Novitsky, Nikolai N. Thermal Transients in District Heating Systems. United States. https://doi.org/10.1016/j.energy.2018.01.049
Chertkov, Michael, and Novitsky, Nikolai N. Thu .
"Thermal Transients in District Heating Systems". United States. https://doi.org/10.1016/j.energy.2018.01.049. https://www.osti.gov/servlets/purl/1417810.
@article{osti_1417810,
title = {Thermal Transients in District Heating Systems},
author = {Chertkov, Michael and Novitsky, Nikolai N.},
abstractNote = {Heat fluxes in a district heating pipeline systems need to be controlled on the scale from minutes to an hour to adjust to evolving demand. There are two principal ways to control the heat flux - keep temperature fixed but adjust velocity of the carrier (typically water) or keep the velocity flow steady but then adjust temperature at the heat producing source (heat plant). Here, we study the latter scenario, commonly used for operations in Russia and Nordic countries, and analyze dynamics of the heat front as it propagates through the system. Steady velocity flows in the district heating pipelines are typically turbulent and incompressible. Changes in the heat, on either consumption or production sides, lead to slow transients which last from tens of minutes to hours. We classify relevant physical phenomena in a single pipe, e.g. turbulent spread of the turbulent front. We then explain how to describe dynamics of temperature and heat flux evolution over a network efficiently and illustrate the network solution on a simple example involving one producer and one consumer of heat connected by “hot” and “cold” pipes. We conclude the manuscript motivating future research directions.},
doi = {10.1016/j.energy.2018.01.049},
journal = {Energy (Oxford)},
number = ,
volume = 184,
place = {United States},
year = {Thu Jan 18 00:00:00 EST 2018},
month = {Thu Jan 18 00:00:00 EST 2018}
}
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Works referenced in this record:
Thermo-Fluid Dynamic Model of Complex District Heating Networks for the Analysis of Peak Load Reductions in the Thermal Plants
conference, March 2016
- Guelpa, Elisa; Sciacovelli, Adriano; Verda, Vittorio
- ASME 2015 International Mechanical Engineering Congress and Exposition, Volume 6A: Energy
The role of district heating in future renewable energy systems
journal, March 2010
- Lund, H.; Möller, B.; Mathiesen, B. V.
- Energy, Vol. 35, Issue 3
4th Generation District Heating (4GDH)
journal, April 2014
- Lund, Henrik; Werner, Sven; Wiltshire, Robin
- Energy, Vol. 68
Modelling temperature dynamics of a district heating system in Naestved, Denmark—A case study
journal, January 2007
- Gabrielaitiene, Irina; Bøhm, Benny; Sunden, Bengt
- Energy Conversion and Management, Vol. 48, Issue 1
Evaluation of Approaches for Modeling Temperature Wave Propagation in District Heating Pipelines
journal, January 2008
- Gabrielaitiene, Irina; Bøhm, Benny; Sunden, Bengt
- Heat Transfer Engineering, Vol. 29, Issue 1
Prediction of thermal transients in district heating systems
journal, September 2009
- Stevanovic, Vladimir D.; Zivkovic, Branislav; Prica, Sanja
- Energy Conversion and Management, Vol. 50, Issue 9
Adaptive Robust Optimization for the Security Constrained Unit Commitment Problem
journal, February 2013
- Bertsimas, Dimitris; Litvinov, Eugene; Sun, Xu Andy
- IEEE Transactions on Power Systems, Vol. 28, Issue 1
Chance-Constrained Optimal Power Flow: Risk-Aware Network Control under Uncertainty
journal, January 2014
- Bienstock, Daniel; Chertkov, Michael; Harnett, Sean
- SIAM Review, Vol. 56, Issue 3
Achieving Controllability of Electric Loads
journal, January 2011
- Callaway, D. S.; Hiskens, I. A.
- Proceedings of the IEEE, Vol. 99, Issue 1
Demand response and smart grids—A survey
journal, February 2014
- Siano, Pierluigi
- Renewable and Sustainable Energy Reviews, Vol. 30
Optimal operation of a residential district-level combined photovoltaic/natural gas power and cooling system
journal, October 2015
- Ondeck, Abigail D.; Edgar, Thomas F.; Baldea, Michael
- Applied Energy, Vol. 156
Works referencing / citing this record:
Performant and Simple Numerical Modeling of District Heating Pipes with Heat Accumulation
journal, February 2019
- Kudela, Libor; Chylek, Radomir; Pospisil, Jiri
- Energies, Vol. 12, Issue 4
Numerical Investigation of Pipelines Modeling in Small-Scale Concentrated Solar Combined Heat and Power Plants
journal, January 2020
- Tascioni, Roberto; Cioccolanti, Luca; Del Zotto, Luca
- Energies, Vol. 13, Issue 2