THERMAL SCIENCE

International Scientific Journal

Vladimir Mijakovski

,

Vangelče Mitrevski

,

Tale Geramitcioski

COMPARATIVE ANALYSIS OF POSSIBILITIES FOR RAISING THE EFFICIENCY IN THERMAL POWER PLANT BY UTILISATION OF WASTE HEAT ENERGY

ABSTRACT
The possibility to use flue gases waste heat for increasing the efficiency of thermal power plant (TPP) explained in this work refers to lignite fired TPP-Bitola in Macedonia (3x233 MW installed electric capacity). Possibility to utilize low-temperature heat energy at the plant’s cold end is also considered in the analysis. Specific fuel consumption is used as an analysis and comparison parameter. Its reduction, compared to the basic power unit ranges between 0.4% and 3.4%. An analysis presenting economic feasibility of the low-temperature heat energy utilization concept for two different refrigerants used in the heat pump is also presented.
KEYWORDS
waste heat energy, efficiency, savings, improvements
PAPER SUBMITTED: 2016-03-22
PAPER REVISED: 2016-05-15
PAPER ACCEPTED: 2016-05-20
PUBLISHED ONLINE: 2016-05-30
DOI REFERENCE: https://doi.org/10.2298/TSCI160322136M
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2016, VOLUME 20, ISSUE Issue 6, PAGES [2171 - 2181]
REFERENCES
  1. ***, A study of the feasibility of utilizing waste heat from central electric power generating stations and potential applications, Report by the Connecticut Academy of Science and Engineering, Hartford, CT, USA, (2009).
  2. Laković Mirjana., et.al. "Impact of the Cold End Operating Conditions on Energy Efficiency of the steam power plants", Thermal Science, Vol. 14, Suppl., pp. 53-66, (2010).
  3. Boyd L. L., et al., How Waste Heat from Electricity Generation Can Heat Greenhouses, Agricultural Engineering, 60 (1), pp. 28-31 (1979).
  4. ***, IAPWS Certified Research Need - ICRN, Dew Point for Flue Gas of Power-Plant Exhaust, The International Association for the Properties of Water and Steam, (2008).
  5. Mijakovski V., Josifovski V., (2006), Analysis of efficiency improvement possibilities in TPP "Bitola", Proceedings, International conference Power plants 2006, Vrnjačka Banja, 2006.
  6. Šarevski V., Оptimization of low temperature energy systems for orangery's' heating, Ph.D. thesis, Faculty of Mechanical Engineering - Skopje, Macedonia, 1993 (in Macedonian).
  7. Pecakov S., Petreski T., Hristov T., Local instructions for exploitation of circulational pump stations and technical water systems at TPP - Bitola, Public enterprise "Macedonian power plants", Skopje, 1999 (in Macedonian).
  8. Ciconkov R., Refrigeration-Solved Examples, Faculty of Mechanical Engineering-Skopje, 2000.
  9. ***, Thermodynamic properties of DuPont Suva 410A (R-410A) refrigerant, DuPont Fluorochemicals, USA, 2004.
  10. ***, Thermodynamic properties of HFC-134a, DuPont Fluorochemicals, USA, 2004.
  11. Mijakovski V., Mijakovski N., (2011) Potential for low-temperature energy usage at power plant's cold end in order to increase energy efficiency, Proceedings (editor: professor Bahram Moshfegh), World Renewable Energy Congress - Sweden, Linkoping, 8-13 May 2011, Sweden.
  12. ***, British petroleum database, www.quandl.com/data/BP/COAL_PRICES-Coal-Prices.
  13. ***, The Energy Technology Systems Analysis Program (ETSAP), www.etsap.org
PDF VERSION [DOWNLOAD]
Comparative analysis of possibilities for raising the efficiency in thermal power plant by utilisation of waste heat energy

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, 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