Coal Mine Methane Utilization in Gas Turbine Units for Electricity and Heat Production

D. Kulakov; N. Shchegolev; R. Z. Tumashev

doi:10.12737/16963

COAL MINE METHANE UTILIZATION IN GAS TURBINE UNITS FOR ELECTRICITY AND HEAT PRODUCTION Coal Mine Methane Utilization in Gas Turbine Units for Electricity and Heat Production

АА Аа

Published in Safety in Technosphere · Volume 4, Issue 5 · Pages 41–48 · Rubric: Energy and resource saving

DOI: https://doi.org/10.12737/16963

Received: 24.10.2015 Accepted: 24.10.2015 Published: 24.10.2015 Language of publication: ru-RU

Authors

D. Kulakov

N. Shchegolev

R. Z. Tumashev

D. Kulakov

N. Shchegolev

R. Z. Tumashev

Academic degree: candidate of technical sciences

Moskovskiy gosudarstvennyy tehnicheskiy universitet imeni N.E. Baumana docent · Russian Federation · Москва

ABSTRACT

Coal mining is accompanied by the release of coal mine methane. Its emissions into the atmosphere within methane-air mixture have a negative impact on the ecological situation. The modern approach involves the use of methane-air-mixture for heat boilers or units to generate electricity. For the generation of heat and electrical energy the coal mine methane could be used in cogeneration gas turbine plants with an altered sequence of processes. Thermo — and gas dynamics studies were conducted in a wide range of parameters of gas turbine plants. For small power plants recommended are: 2.8 compression ratio, turbine inlet — 1173 K, gas cooler inlet temperature — 303 K, 0.8 regeneration ratio. In this case the electrical efficiency of gas turbine plant is 25–26% and even 63–64% if produced heat is counted. Cogeneration gas turbine plant with an altered sequence of process has smaller capital and operating costs compared to traditional gas turbine unit. The use of methane-air mixture as fuel in such gas turbine units increases the profitability of coal mining and improves the ecological situation in the region.

KEYWORDS

coal mine methane, utilization, gas turbine unit with altered sequence of processes, numerical researches, efficiency, ecology.

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1. Введение

Добыча каменного угля из угольных пластов подземным способом связана с обеспечением безопасности ведения работ из-за выделения шахтного метана (ШМ), т.е. газа, который в результате процесса формирования угленосных отложений находится в тесной связи с углем, образуя твердый углеметановый раствор. Эмиссия (или освобождение) ШМ возникает при добыче из-за нарушения термодинамического состояния равновесия в системе «газ–уголь».

В состав газов угольных месторождений входят метан и другие продукты метаморфизма угля — тяжелые гомологи метана, водород H2, сероводород H2S, а также газы воздушного происхождения (диоксид углерода CO2, азот N2 и инертные газы), которые в процессе газового выветривания проникают в угольный пласт [1]. Компонентный состав шахтного газа определяется газовой зональностью угольного пласта (табл. 1).

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Editor-in-Chief

Vladimir Devisilov

devisil@mail.ru

Executive Editor

Dar'ya Sklyankina

501@infra-m.ru

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GOST

Kulakov D., Shchegolev N., Tumashev R. Z. Coal Mine Methane Utilization in Gas Turbine Units for Electricity and Heat Production // Safety in Technosphere. 2015. no. 5. pp. 41-48. DOI: https://doi.org/10.12737/16963. (Date of access 08.11.2026).

MLA

D. Kulakov, Shchegolev N., Tumashev R. Z.. "Coal Mine Methane Utilization in Gas Turbine Units for Electricity and Heat Production." Safety in Technosphere 4.5 (2015): 41-48. DOI: https://doi.org/10.12737/16963.

APA

Kulakov D., Shchegolev N., Tumashev R. Z. (2015). Coal Mine Methane Utilization in Gas Turbine Units for Electricity and Heat Production. Safety in Technosphere, 4(5), 41-48. https://doi.org/10.12737/16963

Chicago

D. Kulakov, Shchegolev N., Tumashev R. Z.. "Coal Mine Methane Utilization in Gas Turbine Units for Electricity and Heat Production." Safety in Technosphere 4, no. 5 (2015): 41-48. https://doi.org/10.12737/16963.

WIKI

{{cite journal | author = Kulakov D., Shchegolev N., Tumashev R. Z. | title = Coal Mine Methane Utilization in Gas Turbine Units for Electricity and Heat Production | journal = Safety in Technosphere | year = 2015 | volume = 4 | issue = 5 | pages = 41-48 | doi = 10.12737/16963 }}

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COAL MINE METHANE UTILIZATION IN GAS TURBINE UNITS FOR ELECTRICITY AND HEAT PRODUCTION Coal Mine Methane Utilization in Gas Turbine Units for Electricity and Heat Production

1. Введение

Confirmation