Economic Dispatch of CHP Units through District Heating Network’s Demand-Side Management

Pavel Rušeljuk, Kertu Lepiksaar, Andres Siirde and Anna Volkova
Additional contact information
Pavel Rušeljuk: Narva Soojusvõrk AS, Oru 2, 20203 Narva, Estonia
Kertu Lepiksaar: Department of Energy Technology, Tallinn University of Technology, 19086 Tallinn, Estonia
Andres Siirde: Department of Energy Technology, Tallinn University of Technology, 19086 Tallinn, Estonia
Anna Volkova: Department of Energy Technology, Tallinn University of Technology, 19086 Tallinn, Estonia

Energies, 2021, vol. 14, issue 15, 1-20

Abstract: Optimisation of heat and electrical load distribution, where the objective function is the maximum efficiency of the CHP unit for a given load range, can be done considering the limitations of electrical power and the heat load. Simulating a real CHP unit with a district heating network shows that demand-side management can improve the overall economic efficiency of the CHP plant and increase the unit’s operating range in the electricity spot market. Economic dispatch makes it possible to determine a reasonable additional increase in the electric power of the CHP unit, and to optimise the supply temperature and mass flow of the district heating network. The results obtained and the analysis performed indicate that the proposed methodology provides logical results and can be used to calculate the efficiency indicators of the cogeneration of electrical and thermal energy. The problem of optimising the operating mode of the CHP unit was solved, which allows us to determine the optimal additional increase in the unit’s electrical load at a given heat load of consumers, which on average increases the CHP unit’s efficiency up to an additional 1.5%.

Keywords: economic dispatch; CHP unit; demand-side management; efficiency; electrical and heat load; optimisation; district heating; consumption; demand (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/14/15/4553/pdf (application/pdf)
https://www.mdpi.com/1996-1073/14/15/4553/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:14:y:2021:i:15:p:4553-:d:602995

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().