THERMAL SCIENCE

International Scientific Journal

DISTRICT HEATING SUBSTATION ELEMENTS MODELING FOR THE DEVELOPMENT OF THE REAL-TIME MODEL

ABSTRACT
In the heating system of residential and commercial buildings, heating substation has an important role because it is used as a separator between primary and secondary supply sides. In this paper, we focused on the development of the simulation model of all heating substation elements, which influence the change of relevant parameters: water temperature, flow, and pressure. The primary objective of the paper is to analyze and develop mathematical models of the heat exchanger, control valve, three-way valve and frequency-regulated centrifugal pump that are configurable and generic as much as possible, so they can be used for the development of the model that could operate in real time. A real-time model could be used as a suitable replacement for an actual physical system in the process of testing and improvement of the control system performance. Different elements setups of district heating substation are considered, and the modelbased simulation is presented for one of them. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. TR 33013: Development of intelligent monitoring control system to increase energy efficiency in buildings]
KEYWORDS
PAPER SUBMITTED: 2018-12-26
PAPER REVISED: 2019-01-28
PAPER ACCEPTED: 2019-01-30
PUBLISHED ONLINE: 2019-02-17
DOI REFERENCE: https://doi.org/10.2298/TSCI181226031L
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE 3, PAGES [2061 - 2070]
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© 2019 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence