GAS-PIPE MAIN, a structure for transportation of combustible gases from a place of production or manufacture to points of consumption. Distinguish underground, above-ground (on supports), in a dike. The gas pressure in a main gas-pipe is sustained gazokompressornymi by stations. In terminations of a main gas-pipe gas-distribution stations are constructed. A maximum diameter of pipes of a main gas-pipe of 1420 mm.

GAS PERMEABILITY, property of solid partitions (membranes) to drop gas at existence of swing pressure on both parties of a partition. At a constant temperature fluence of gas is proportional to a pressure fall per unit of depth of a membrane. The constant of proportionality dependent on structure of a membrane and a nature of gas, calls as quotient of gas permeability.

DISCHARGE LIGHT SOURCES, gas-discharge devices, in which electrical power will be converted to power of optical radiance at transit of a current flow through gases (more often inert), pairs of substances (napr., pairs of mercury) or their mixes. According to a direct stimulus source distinguish gazosvetnye (neon, mercurial, sodium, xenon), luminescent, etc. Apply primarily to illumination, irradiation and the signalling.

The GAS-DISCHARGE DEVICE (the ion device), the electronic device, which action it is based on use of different kinds of electric discharges in gases or pairs of metals. Distinguish gas-discharge devices of a glow discharge (cold-cathode thyratrons, digital indicator lamps, etc.), an arc discharge, primarily with the glowed cathode (thyratrons, tacitrons, mercury-arc rectifiers, etc.), a spark discharge (three-electrode arcs, etc.), corona discharge (stabilitrons, etc.). The separate group of gas-discharge devices is compounded with discharge light sources, gaseous optical masers, etc.

GAS-DISTRIBUTION STATION, the installation depressing a gas pressure at his feed in distribution networks of consumption.

GAZOSVETNAJA the TUBE, a discharge light source by the way a glass tube, gap-filling a neon, argon, etc. gases with the additive of mercury. Gazosvetnaja the tube with a neon shines orange-red light, with argon and pairs of mercury - blue. It is applied to illuminated signs.

The GAS-FILLED RECTIFIER DIODE (from gas and... A throne), the discharge 2-electrode device with the semi-self-sustained arc or a glow discharge, gap-filling noble gas, pairs of mercury or hydrogen. It is used primarily as a valve in high-voltage rectifiers.

The GAS-TUBE BOILER, steam boiler in which light-end products of combustion of fuel pass on steel pipes (water circulates in outside of tubes). Distinguish zharotrubnye and fire-tube boilers. Gas-tube boilers are extruded by water tube boilers (were saved only on motorships and steam locomotives).

The GAS-TURBINE POWER STATION, TES in which in the capacity of a drive of an electricity generator the combustion turbine is used.

GAS-TURBINE FUEL, the mix of fluid hydrocarbon used in the capacity of of fuel for gas-turbine fixed (cogeneration stations) and transport (locomotives, automobiles, court) installations. Receive a crude distillation or at its recycling (napr., cracking).

GAS-TURBINE ENGINE (turbine engine), the thermal engine in which power of the steam-and-gas mixture received at combustion of fuel in a combustion chamber, will be converted to mechanic activity with the help of a combustion turbine. It is applied basically on the cogeneration station to a drive of electric generators, in the capacity of engines of transport machines, power plants of courts.

GAZOTURBOVOZ, the locomotive with a gas-turbine engine, an electricity generator and thrust electric motors. First gazoturbovozy have appeared in it is grey. 20 century. As contrasted to a gasoline locomotive have smaller unit weight, it is easier on a design, but have low efficiency (approximately in 2 times below, than for a gasoline locomotive).

GAZOTURBOHOD, a vessel with a gas-turbine power plant. First gazoturbohody have appeared in it is grey. 20 century. Light turbines of air type establish on foilcrafts and on an air buffer, heavy - on timber carriers, "roll-on" ships, etc.

GAZOFRAKTSIONIRUJUSHCHAJA INSTALLATION, a complex of apparatuses gazopererabatyvajushchih, petrochemical and chemicals plants for unmixing light hydrocarbon on personal substances.

FLUE, 1) the channel derivated by surface elements of heating steam or a hot-water boiler. 2) the Gas passage from furnace plants and furnaces in a flue (calls also as duct or a pig).

GASES PETROLEUM WAY, hydrocarbon gases (ethane, propyl hydride, butane, etc.), concomitant petroleum and secreted from it at separation; valuable raw material for petrochemical and a chemical industry.

GASES NATURAL COMBUSTIBLE, mixes of hydrocarbon of methanoic lines and not hydrocarbon components, meeting in a sedimental volva of earth crust as loose clumps, and also in dissolved (in petroleum and edge water), dissipated (sorbed by breeds) and solid (in gazogidratnyh deposits) conditions. In gases natural combustible the main component - methane (up to 98 %), ethane, propyl hydride, butane, isobutane and pentane enter also. Combustion heat of 32,7 MDZH/M3 and is higher. World reserves over 113 bln. in m3 (1992).

GAI, State automobile inspection.

GAIANIJA (Gajane) Armenian (mind. 304), igumenija, prepodobnomuchenitsa, one them 35 maidens damaged in persecution of the Armenian tsar Tiridata. Memory in the Orthodox church on September, 30 (on October, 13).

GAY (1 century), apostle from 70-òè, the pupil of apostle Paul (the Message to Romans 16:23; 1 epistle to the corinthians 1:14), diocesan Efessky (after apostle of Timotheus). Memory in the Orthodox church on January, 4 (17) and on November, 5 (18).