Topic
Gas compressor
About: Gas compressor is a research topic. Over the lifetime, 91817 publications have been published within this topic receiving 552209 citations.
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16 Aug 1995TL;DR: In this article, a method and apparatus for cooling air from a compressor to hot components in a gas turbine engine is presented. But the method is not suitable for the case of large-scale engines, as the main flow has an above average pressure whereas the bleed flow has a below average pressure.
Abstract: A method and apparatus provide cooling air from a compressor to hot components in a gas turbine engine. Compressed air discharged from an exit of the compressor is stratified into a main flow channeled to a combustor, and a separate bleed flow channeled to a heat exchanger. The bleed flow has an above average pressure whereas the main flow has a below average pressure. The bleed flow is cooled in the heat exchanger and channeled to hot components of the engine for cooling thereof.
75 citations
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13 Feb 1996TL;DR: In this paper, a system and process for converting a light hydrocarbon gas to a synthetic heavier hydrocarbon liquid is provided for converting light hydrocarbons to synthetic heavy hydrocarbon liquids, including an autothermal reformer, a Fischer-Tropsch reactor and a Brayton cycle.
Abstract: A system and process are provided for converting a light hydrocarbon gas to a synthetic heavier hydrocarbon liquid. The system includes an autothermal reformer, a Fischer-Tropsch reactor and a Brayton cycle that are structurally and functionally integrated. In the practice of the process, a mixture of a hydrocarbon feed gas, a compressed air feed and process steam is fed to the autothermal reformer to produce a synthesis gas. The synthesis gas is fed to the Fischer-Tropsch reactor where it is catalytically reacted to produce heavy hydrocarbons. The outlet from the Fischer-Tropsch reactor is separated into water, a low heating value tail gas, and the desired hydrocarbon liquid product. The water is pressurized and heated to generate process steam. The tail gas is heated and fed with compressed air and steam to the Brayton cycle having a combustor and a series of power turbines and compressors. The tail gas and air feed are burned in the combustor to produce a combustion gas that is used to drive a power turbine linked by a shaft to an air compressor, thereby driving the air compressor. The system further includes a plurality of heat exchangers that enable heat to be recovered from the outlet of the autothermal reformer. The recovered heat is used to make the process steam as well as to preheat the hydrocarbon feed gas before it is fed to the autothermal reformer, preheat the synthesis gas before it is fed to the Fischer-Tropsch reactor and preheat the tail gas before it is fed to the combustor.
75 citations
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TL;DR: The results show that for the 4.176MMSCFD of gas flared from the Farashband gas refinery, the electricity production gives the highest rate of return (ROR), the lowest payback period, the highest annual profit and mild capital investment.
75 citations
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31 Jul 1990
TL;DR: In this paper, a refrigeration system incorporating a scroll type compressor is described, which includes an injection system for injecting liquid refrigerant into the suction inlet opening of the compressor in response to excessive discharge gas temperature.
Abstract: A refrigeration system incorporating a scroll type compressor is disclosed which includes an injection system for injecting liquid refrigerant into the suction inlet opening of the compressor in response to excessive discharge gas temperature. A temperature sensor assembly is located within a well formed in the discharge chamber and serves to control actuation of the liquid injection system. In one embodiment the sensor assembly incorporates a pair of thermostats, one to control liquid injection and one to shut down the compressor in the event of continued overheating. In another embodiment a single thermostat having two tip temperatures is utilized. In a third embodiment a temperature sensing transducer is utilized in combination with a microprocessor.
74 citations
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24 May 2002TL;DR: In this paper, a gas turbine system that includes a compressor, a turbine component and a load is described, where fuel and compressor discharge bleed air are supplied to a combustor and gaseous products of combustion are introduced into the turbine component, and subsequently exhausted to atmosphere.
Abstract: A gas turbine system that includes a compressor, a turbine component and a load, wherein fuel and compressor discharge bleed air are supplied to a combustor and gaseous products of combustion are introduced into the turbine component and subsequently exhausted to atmosphere. A compressor discharge bleed air circuit removes bleed air from the compressor and supplies one portion of the bleed air to the combustor and another portion of the compressor discharge bleed air to an exhaust stack of the turbine component in a single cycle system, or to a heat recovery steam generator in a combined cycle system. In both systems, the bleed air diverted from the combustor may be expanded in an air expander to reduce pressure upstream of the exhaust stack or heat recovery steam generator.
74 citations