Abstract:
An aircraft includes a fuel cell device which can be operated with hydrogen from a hydrogen tank and with oxygen drawn from the surrounding air, and further includes a superconducting magnetic energy storage unit (SMES unit) which is disposed, together with the hydrogen tank, in a cryogenic container, wherein the cryogenic container does not have an active cooling system or a liquid hydrogen generating device, and has a volume for holding a maximum of 40 kg liquid hydrogen.
Abstract:
Liquid cryogen from a tank having a head space pressure P1 is vaporized with a pressure building vaporizer to gaseous cryogen and the pressure of the gaseous cryogen is built to a pressure P2. The pressurized gaseous cryogen at pressure P2 is expanded across an expander to decrease its pressure and fed to a point of use at an installation including the vaporizer at a pressure P3. P2≧2×P3. Energy from the expanded gas may be recovered in the form of mechanical energy, electrical energy.
Abstract:
A gas turbine systems of reducing NOx emissions and enhancing operability comprises a compressor; a combustor disposed downstream of and in fluid communication with the compressor; a turbine assembly disposed down stream of and in fluid communication with the combustor; an oxygen-enriched gas source disposed in selective fluid communication with the compressor, the combustor, or a combination of the foregoing, wherein the oxygen-enriched gas source is a pressure swing absorption system, an electrolyzer, or a membrane reactor.
Abstract:
A turbine power plant of particularly inexpensive construction and using static expansion of the combustion gas to accelerate slugs of liquid used as the motive power for a Pelton wheel. The turbine power plant comprises a fuel combustion unit producing combustion gas which serves to impart speed to slugs of an auxiliary liquid, like water, in output pipes; this auxiliary liquid acts on a Pelton wheel to produce rotary drive. A part of the auxiliary liquid is reconverted as slugs to compress the air supplied to the fuel combustion unit. The turbine power plant also includes a second Pelton wheel driving a common shaft for an air fan, and a pair of rotating nozzles arranged to produce the said slugs of auxiliary liquid. The second Pelton wheel is driven by part of the auxiliary liquid.
Abstract:
A nitrogen source supplies a flow of nitrogen to a cooling circuit in the turbine section of a gas turbine. The nitrogen in the cooling circuit absorbs heat from the turbine section and flows to a flow divider where the heated nitrogen is split into a combustor flow and a return flow. The combustor nitrogen flow is injected into the gas turbine combustor. The return nitrogen flow is returned to the flow of nitrogen supplied to the gas turbine cooling circuit.
Abstract:
A refrigeration apparatus (7200) includes a heat pump circuit (7201) and a power generation circuit (7100). The power generation circuit (7100) includes an evaporator (701) including a first and a second heat exchanger (710a, 710b), a turbine (702), a condenser (703) and a pump (704). The first heat exchanger (710a) absorbs heat rejected from the heat pump circuit (7201) into a power generation circuit (7100) while the second heat exchanger (710b) further heats the fluid. The power generation circuit (7100) includes a bypass (707) which allows a portion of working liquid to enter the turbine (702) without passing through the evaporator (701). A heat pump (704) with similar bypass is also disclosed. Also disclosed are dual stage turbine design and a nozzle (10300) for a turbine which includes two fluid paths (1011, 1014) that adapted to receive and mix the liquid and vapour streams of working fluid, so that the liquid working fluid is vaporized by the heat from the vapour working fluid.
Abstract:
A reactor for producing hot hydrogen in vacuo which in turn drives a power-generating device such as a turbine is disclosed. Within the reactor are injected heat-generating reactants such as beryllium and oxygen. The reactants heat hydrogen which in turn is delivered to a power-generating device such as a turbine.
Abstract:
The present invention concerns systems for storing energy and using the stored energy to generate electrical energy or drive a propeller (505). In particular, the present invention provides a method of storing energy comprising: providing a gaseous input, producing a cryogen from the gaseous input; storing the cryogen; expanding the cryogen; using the expanded cryogen to drive a turbine (320) and recovering cold energy from the expansion of the cryogen. The present invention also provides a cryogenic energy storage system comprising: a source of cryogen; a cryogen storage facility (370); means for expanding the cryogen; a turbine (320) capable of being driven by the expanding cryogen; and means (340, 350) for recovering cold energy released during expansion of the cryogen.
Abstract:
A method and apparatus for boosting the performance of gas turbine engines, pipelines, and other applications using gas turbine engine systems. A pressurizing device or other source is preferably used to deliver an intake air stream to the gas turbine engine at at least 2% above atmospheric pressure. The pressurizing device of other source is preferably not mechanically driven by the gas turbine engine itself.
Abstract:
The present application provides an integrated gasification combined cycle system. The integrated gasification combined cycle system may include a nitrogen source, a combustor, and a turbine. A flow of nitrogen from the nitrogen source passes through and cools the turbine and then flows into the combustor.