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On flow and supply temperature control in district heating systems

Technical Report:

Abstract

This paper discusses how the control of the flow and the supply temperature in district heating systems can be optimized, utilizing stochastic modeling, prediction and control methods. The main objective is to reduce heat production costs and heat losses in the transmission and distribution net by minimizing the supply temperature at the district heating plant. This control strategy is reasonable, in particular, if the heat production takes place at a combined heat and power (CHP) plant. The control strategy is subject to some restrictions, e.g., that the total heat requirement for all consumers is supplied at any time, and each individual consumer is guaranteed some minimum supply temperature at any time. Another important restriction is that the variation in time of the supply temperature is kept as small as possible. This concept has been incorporated in the program package PRESS developed at the Technical University of Denmark. PRESS has been applied and tested, e.g., at Vestkraft in Esbjerg, Denmark, and significant saving potentials have been documented. PRESS is now distributed by the Danish District Heating Association. (au) (19 refs.)
Publication Date:
Dec 31, 1993
Product Type:
Technical Report
Report Number:
DTH-IMSOR-TR-1993-10
Reference Number:
SCA: 320603; PA: DK-94:001732; EDB-95:014558; SN: 95001301462
Resource Relation:
Other Information: DN: EFP-91; PBD: 1993
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; DISTRICT HEATING; TEMPERATURE CONTROL; OPTIMIZATION; P CODES; HEAT FLUX; OPERATING COST; DUAL-PURPOSE POWER PLANTS; STOCHASTIC PROCESSES; 320603; PUBLIC UTILITIES
OSTI ID:
10105233
Research Organizations:
Technical Univ. of Denmark, Lyngby (Denmark). Inst. of Mathematical and Operations Research
Country of Origin:
Denmark
Language:
English
Other Identifying Numbers:
Other: ON: DE95723831; CNN: Contract ENS-1323/91-0010; TRN: DK9401732
Availability:
OSTI; NTIS
Submitting Site:
DK
Size:
20 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Madsen, H, Sejling, K, Soegaard, H T, and Palsson, O P. On flow and supply temperature control in district heating systems. Denmark: N. p., 1993. Web.
Madsen, H, Sejling, K, Soegaard, H T, & Palsson, O P. On flow and supply temperature control in district heating systems. Denmark.
Madsen, H, Sejling, K, Soegaard, H T, and Palsson, O P. 1993. "On flow and supply temperature control in district heating systems." Denmark.
@misc{etde_10105233,
title = {On flow and supply temperature control in district heating systems}
author = {Madsen, H, Sejling, K, Soegaard, H T, and Palsson, O P}
abstractNote = {This paper discusses how the control of the flow and the supply temperature in district heating systems can be optimized, utilizing stochastic modeling, prediction and control methods. The main objective is to reduce heat production costs and heat losses in the transmission and distribution net by minimizing the supply temperature at the district heating plant. This control strategy is reasonable, in particular, if the heat production takes place at a combined heat and power (CHP) plant. The control strategy is subject to some restrictions, e.g., that the total heat requirement for all consumers is supplied at any time, and each individual consumer is guaranteed some minimum supply temperature at any time. Another important restriction is that the variation in time of the supply temperature is kept as small as possible. This concept has been incorporated in the program package PRESS developed at the Technical University of Denmark. PRESS has been applied and tested, e.g., at Vestkraft in Esbjerg, Denmark, and significant saving potentials have been documented. PRESS is now distributed by the Danish District Heating Association. (au) (19 refs.)}
place = {Denmark}
year = {1993}
month = {Dec}
}