Combined use of coal mine gases for efficient energy generation

• Autorzy: Postrzednik S.

Identyfikatory

DOI

10.1515/aoter-2016-0026

• Języki publikacji: EN

Abstrakty

EN

There are two basic types of coal mine gases: gas from demethanation of coal deposits, and ventilation gas; containing combustible ingredients (mainly methane, CH₄). Effective use of these gases is an important technical and ecological issue (greenhouse gas emissions), mainly due to the presence of methane in these gases. Serious difficulties in this area (e.g. using them as the fuel for internal combustion (IC) engine) occur mainly in relation to the ventilation gas, whereas the gas from demethanation of coal deposits can be used directly as the fuel for internal combustion engines. The proposed solution of this problem shows that the simple mixing of these two gases (without supplying of oxygen from ambient air) is the effective way to producing the gaseous combustible mixture, which can be used for the fueling of internal combustion gas engines. To evaluate the energy usefulness of this way produced combustible mixture the process indicator has been proposed, which expresses the share of the chemical energy supplied with the ventilation gas, in the whole chemical energy of the produced fuel combustible mixture. It was also established how (e.g., by appropriate choice of the mixed gas streams) can be achieved significantly higher values of the characteristic process indicator, while retaining full energy usefulness of the gained gaseous mixture to power combustion engines.

Słowa kluczowe

EN

mine firedamp gases; preparing of flammable mixture; fuelling of IC engines

PL

kopalnia; gaz; przygotowanie palnej mieszaniny; silnik; zasilanie

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2016
• Tom: Vol. 37, no. 4
• Strony: 37--53
• Opis fizyczny: Bibliogr. 9 poz., rys., wz.

Twórcy

autor

Postrzednik S.

• Silesian University of Technology, Institute of Thermal Engineering, Konarskiego 18, 44-100 Gliwice, Poland

Bibliografia

• [1] Assessment of the Worldwide Market Potential for Oxidizing Coal Ventilation Air Methane. U.S. Environmental Protection Agency, EPA 430-R-03-002. USEPA, 2003.
• [2] Beard J.T.: Mine Gases and Ventilation: Theory and Practical Ventilation, 2nd Edn. Mc.Graw-Hill Book Company. London 1920.
• [3] Bibbler C., Carothers P.: Overview of coal mine gas use technologies. Second Int. Methane Mitigation Conf., Novosibirsk 2000.
• [4] Global Anthropogenic Non-CO2 Greenhouse Gas Emissions: 1990 - 2020. Office of Atmospheric Programs Climate Change Division. U.S. Environmental Protection Agency, Washington 2006.
• [5] McPherson M.J.: Subsurface Ventilation and Environmental Engineering with Ventilation Planning. Chapman State & State Hall, New York 1993.
• [6] Nawrat S., Gatnar K.: Estimate of condition and capabilities of VAM utilization from underground coal mines. Polityka energetyczna 11(2008), 2, 69–83 (in Polish).
• [7] Postrzednik S., Żmudka Z., Przybyła G.: Main conditions and effectiveness of gas fuel use for powering of dual fuel IC self-ignition engine. Transp Prob. 10(2015), 3, 99-111.
• [8] Przybyła G., Postrzednik S., Żmudka Z.: The combustion process analysis of SI engine fuel led with lean air-gas mixture. Sci. Mag. Combus. Eng. 154(2013), 3, SC-038 (in Polish).
• [9] Somers J.M., Schultz H.L.: Thermal oxidation of coal mine ventilation air methane. 12th U.S. North American Mine Ventilation Symp. 2008, 301–306.