Abstract
The article discusses the possibilities of generating electricity without burning fuel by expanding high-pressure natural gas at gas distribution stations with lower specific capital costs. It is proposed to reduce the pressure of the transported natural gas using expander-generator units instead of traditional throttle devices.
Highlights
Renewable forms of energy are one of the promising areas of scientific and technological progress
A 300 MW power unit was commissioned at New Angren Thermal Power Plant (TPP), as well as an 800 MW unit at Talimarjan TPP; a project was completed to expand Navoi TPP with the construction of a combined cycle gas turbine unit (CCGT) with a capacity of 478 MW, and a cogeneration gas turbine unit was introduced at the Tashkent Thermal Power Plant. with a capacity of 27 MW
In the framework of projects on the use of alternative and renewable energy sources, expansion units were introduced at Syrdarya and Talimarjan TPPs
Summary
CH4 C2H6 C3H8 iC4H10 nC4H10 C5H12+higher N2+rare CO2 H2S Content of C5+higher: - % mol. - g/m3 Molecular mass of C5+higher Gas density (760 mm Hg 200C), kg/m3 Relative gas density (760 mm Hg 200C). A characteristic feature of the turbo-expander design developed by the authors is location of the turbine and compressor wheels on one shaft, which determines the predominant use of radial or radial-axial runners in order to simplify the design of the supply and removal of the working medium. In this regard, to use the physical energy of the gas, obtained by reducing the pressure on GDS and GCP, instead of traditional throttle devices, it is advisable to use EGU, which allow to generate electricity due to the pressure drop of the gas [2,3,4,5].
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