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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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Online
ISSN
2083-6023
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Volume 35, Issue 1

Changes of the thermodynamic parameters in failure conditions of the micro-CHP cycle

Robert Matysko
  • Corresponding author
  • The Szewalski Institute of Fluid Flow Machinery of Polish Academy of the Sciences, Fiszera 14, 80-231 Gdańsk, Poland
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  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Jarosław Mikielewicz
  • The Szewalski Institute of Fluid Flow Machinery of Polish Academy of the Sciences, Fiszera 14, 80-231 Gdańsk, Poland
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Eugeniusz Ihnatowicz
  • The Szewalski Institute of Fluid Flow Machinery of Polish Academy of the Sciences, Fiszera 14, 80-231 Gdańsk, Poland
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2014-08-15 | DOI: https://doi.org/10.2478/aoter-2014-0003

Abstract

The paper presents the calculations for the failure conditions of the ORC (organic Rankine cycle) cycle in the electrical power system. It analyses the possible reasons of breakdown, such as the electrical power loss or the automatic safety valve failure. The micro-CHP (combined heat and power) system should have maintenance-free configuration, which means that the user does not have to be acquainted with all the details of the ORC system operation. However, the system should always be equipped with the safety control systems allowing for the immediate turn off of the ORC cycle in case of any failure. In case of emergency, the control system should take over the safety tasks and protect the micro-CHP system from damaging. Although, the control systems are able to respond quickly to the CHP system equipped with the inertial systems, the negative effects of failure are unavoidable and always remain for some time. Moreover, the paper presents the results of calculations determining the inertia for the micro-CHP system of the circulating ORC pump, heat removal pump (cooling condenser) and the heat supply pump in failure conditions.

Keywords: Micro-CHP system; Transient model; Failure states; Multifuel boiler system; Heating system

References

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About the article

Received: 2012-08-28

Published Online: 2014-08-15

Published in Print: 2014-03-01


Citation Information: Archives of Thermodynamics, Volume 35, Issue 1, Pages 43–59, ISSN (Online) 2083-6023, DOI: https://doi.org/10.2478/aoter-2014-0003.

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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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