APPROPRIATENESS OF APPLYING A TURBOEXPANDER WORKING WIDTH NATURAL GAS ON THE STEAM-GAS POWER STATION “HRAZDAN-5”

Abstract

A general outline of combined (steam-gas) power unit's gas-supply is presented. It is purposed to equip the gas control point of the thermal power plant with a gas expander-generating installation, carrying out pressure reduction of the delivered gas to the low pressure steam generator due to its adiabatic expansion and production of an electricity, as distinct from pressure regulating valves used nowadays where the pressure decrease of the gas is carried out by gas throttling. Preliminary heating of the supplied gas in an expander is provided to be carried out partially by heat generated from the gas-compressor installation, and partially due to the network hot water. The research is also conducted under the conditions of varying regimes of the power plant.