ENERGY EFFICIENCY OF THE CO-GENERATION SCHEMES IN THE MINE ENERGETIC COMPLEX

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Parent Category: Geo-Technical Mechanics, 2013

Category: Collection of scientific papers «Geotekhnicheskaya Mekhanika» Issue 110

UDC 622.012:620.92

Dyakun I.L. (IGTM NAS of Ukraine)

Kozar I.Y. (IGTM NAS of Ukraine)

Abstract. Main problems associated with necessity to increase effectiveness of the mine power-cogeneration complexes include rational coal methane use in energy facilities and, consequently, maximal recovery of the produced thermal and electrical energy. The article presents the following variants of cogeneration schemes: power plant consisting of a gas engine plant on the shaft of which a reactive steam-water  turbine is installed; and scheme with backpressure turbine and reactive steam-water turbine installed on the same shaft with the gas engine plant. A comparative analysis of the energy efficiency of the cogeneration schemes under consideration was conducted at different operational modes of thermal circuit of the gas engine plant. The analysis shown that at proper circuitry and structural decisions for recovering heat from the modules of the mine power complexes efficiency of the heat and electric power generation can reach up to 75%. This fact is an evidence of investment attractiveness of the cogeneration schemes under consideration.

Keywords: cogeneration, gas engine setting, steam-water turbine.

References:

1. Bulat, A.F. and Chemeris, I.F. (2006), Nauchno-tehnicheskie osnovyi sozdaniya shahtnyih kogeneratsionnyih energeticheskih kompleksov [Scientific and technical basis for mine cogeneration power complexes], Naukova dumka, Kyiv, Ukraine.

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6. Dyakun, I.L. and Kozar, I.Y. (2012), “Cogeneration scheme with the placement back-pressure and steam-water turbines on a common shaft with a gas engine setting”, Geotekhnicheskaya Mekhanika [Geo-Technical Mechanics], no.103, pp. 88-93.

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About the authors:

Dyakun Inna Leonidovna, junior Researcher in Department of Mine Energy Complexes, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Kozar Iryna Yurevna, Engineer in Department of Mine Energy Complexes, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

 

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