Abstract: A gas turbine engine that has a turbine (1) mounted downstream of a combustor (5), a compressor turbine (2) mounted downstream of turbine (1) for producing power for driving a compressor (3), a heat exchanger (6) having a first circuit (61) connected to compressor turbine (2) and a second circuit (62) connected between compressor (2) and turbine (1) and a fluid discharge device (7) between compressor (3) and combustor (5). The gas turbine engine has a reactor (8) that has a heating device (9), inlets (F, W) connected to sources of fuel and water and an outlet connected to combustor (5). Heating device (9) is connected the outlet of compressor turbine (2). The engine also has a system for keeping the temperature at the outlet of compressor turbine (2) constant.

Abstract: A gas turbine system includes a compressor side for compressing an air/fuel mixture, and a turbine side for driving the compressor side. A heat exchanger transfers heat from turbine exhaust gases to the air/fuel mixture from the compressor side. A main catalytic combustor is disposed between the heat exchanger and the turbine side for combusting the air/fuel mixture and supplying the resultant products of combustion to the turbine side. The main catalytic combustor has a volume which is sufficient for oxidizing enough fuel to achieve a predetermined turbine inlet temperature, but insufficient for oxidizing all of the fuel. A secondary catalytic combustor is disposed downstream of the turbine side for combusting at least some of the fuel that was not combusted by the main catalytic combustor. The second catalytic combustor typically operates at a lower temperature than the main catalytic combustor.

Abstract: Described are a gas-turbine construction and a method of operating this gas-turbine construction, having an air compressor, a heat exchanger connected downstream of the air compressor, a combustion chamber, and a turbine which can be driven by hot combustion gases and from which the combustion gases are fed to the heat exchanger for heating the compressed supply air coming from the air compressor. The invention is distinguished by the fact that the heat exchanger and the combustion chamber are integrated in a common unit, and that fuel can be added to the supply air before entry into the unit, which fuel can be ignited catalytically in the form of an air/fuel mixture inside the unit, in which a catalyst is provided.

Abstract: In a method for operating a gas turbogenerator set, an exhaust gas stream (13) from the last turbine (5) is divided at least into two part streams (14, 15) routed in parallel. The first part stream (14) flows through a recuperator (26), and the second part stream (15) flows through a steam generator (27). The steam quantity (16) obtained from the steam generator (27) is introduced at a suitable point into combustion air (2, 27) used for operating a combustion chamber (2) belonging to the gas turbogenerator set. The exhaust gases from the turbine are consequently optimally cooled to good effect, this resulting in maximized efficiency.

Abstract: A microturbine power generation system includes an electrical generator, a turbine and a compressor intermediate the generator and the turbine. The turbine, compressor and electrical generator are secured together by a tieshaft. The tieshaft is prestressed such that faces of the turbine, electrical generator and compressor maintain contact during high-speed, high-temperature operation of the system.

Abstract: A microturbine power generating system includes a primary compressor, an electrical generator and a turbine that can be rotated as a unit. Hot, expanding gases resulting from combustion are expanded through the turbine, and the resulting turbine power is used for powering the electrical generator. The microturbine power generating system further includes an auxiliary compressor that is driven by the turbine power. During operation of the system, a small portion of air can be bled off the primary compressor and further compressed in the auxiliary compressor to provide an auxiliary supply of pressurized air. The heat of high pressure compression is recovered to increase the overall efficiency of the machine.

Abstract: A gasification power generation system includes: a gasifying section for allowing a fuel, such as coal, to react with a gasifying agent, such as air, to produce a gasified product gas; a power-generating section for generating electricity using energy obtained by burning the gasified product gas, which is produced by the gasifying section; and a preheating section for preheating the gasifying agent supplied to the gasifying section, to a self ignition temperature of, e.g., about 1000° C. The preheating section raises the temperature of air supplied into the gasifying section, to a high temperature of about 1000° C. when a fossil fuel, such as coal, is used as the fuel. Thus, it is possible to achieve gasification power generation with a high generating efficiency using inexpensive, simple constructions and to realize a stable and low NOx combustion of the gasified product gas.