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Archives of Thermodynamics

The Journal of Committee on Thermodynamics and Combustion of Polish Academy of Sciences

4 Issues per year

CiteScore 2016: 0.54

SCImago Journal Rank (SJR) 2016: 0.319
Source Normalized Impact per Paper (SNIP) 2016: 0.598

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Volume 35, Issue 1

Influence of biomass cofiring on the optimal coefficient of the cogeneration share in a district heating system

Andrzej Ziębik
  • Corresponding author
  • Silesian University of Technology, Institute of Thermal Technology, Konarskiego 22, 44-100 Gliwice, Poland
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  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Paweł Gładysz
  • Silesian University of Technology, Institute of Thermal Technology, Konarskiego 22, 44-100 Gliwice, Poland
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2014-08-15 | DOI: https://doi.org/10.2478/aoter-2014-0007


The paper presents a modified algorithm for choosing the optimal coefficient of the share of cogeneration in district heating systems taking into account additional benefits concerning the promotion of highefficiency cogeneration and biomass cofiring. The optimal coefficient of the share of cogeneration depends first of all on the share of the heat required for preparing the hot tap water. The final result of investigations is an empirical equation describing the influence of the ratio of the heat flux for the production of hot tap water to the maximum flux for space heating and ventilation, as well as the share of chemical energy of biomass in the fuel mixture on the optimal value of the share of cogeneration in district heating systems. The approach presented in the paper may be applied both in back-pressure combined heat and power (CHP) plants and in extraction-condensing CHP plants.

Keywords: Cogeneration; Combined heat and power; District heating systems; Guarantees of origin; Biomass cofiring


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About the article

Received: 2012-10-22

Published Online: 2014-08-15

Published in Print: 2014-03-01

Citation Information: Archives of Thermodynamics, Volume 35, Issue 1, Pages 99–115, ISSN (Online) 2083-6023, DOI: https://doi.org/10.2478/aoter-2014-0007.

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© Polish Academy of Sciences. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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