Abstract:
An improved binary cycle sulphur-water power plant comprising a closed topping sulphur loop and a water loop. The sulphur is vaporized in a heat exchanger where it is at approximately the same pressure as a heating fluid (combustion gas or coolant of a nuclear reactor for instance).
Abstract:
In an electric generator capable of producing surplus electrical energy at certain periods, that improvement which comprises utilizing the surplus electrical energy to directly heat an electricity conducting heat storing magma, the magma having passages therethrough for the selective reception of water producing steam during high demand or low energy producing periods to increase the total production of electrical energy.
Abstract:
The efficiency and the power output of a gas turbine power plant, to a large extent, depend upon the turbine inlet temperature (TIT). The strength of conventional metallic materials puts an upper limit to the TIT. Ceramic materials will withstand much higher temperatures, but their practically usable strength is considerably less than that of metallic materials.The strains imposed upon a rotor to a large degree is a function of the centrifugal stress and thus the peripheral speed. In order to secure simplicity of design the turbine driving the compressor rotor shall be mounted upon the same shaft as the latter, which means that the turbine will rotate at the same speed as the compressor.The specific power obtainable at, or consumable by, a rotor is approximately a function of the square of its peripheral speed, and in a conventional arrangement the turbine rotor usually has as somewhat smaller diameter then the compressor it drives, assuming that the compressor is the only power consumer.A ceramic material will not withstand such high peripheral speeds as are used in metallic turbines, and according to the invention the first, ceramic turbine rotor driving the compressor is "undersized" and has a reduced diameter. This means that the power output of this turbine will not be sufficient to drive the compressor, so the turbine has to be supported, either by power transfer from a further turbine rotor operating on a separate shaft, or by a further ceramic rotor being mounted upon the compressor/first turbine rotor shaft.
Abstract:
A gas turbine circuit system in which the individual heat exchanging components are never subjected to maximum temperature and maximum pressure simultaneously so to reduce maximum stress for the component material, a feed back circuit from the outlet of the first turbine stage back to the heat source gas inlet comprising a mixing path in which the operational hot gas is mixed with injected cold gas under high pressure and substantial pressure-gain for the hot gas.
Abstract:
In a plant of a composite cycle which includes a steam turbine having a high pressure portion and a low pressure portion, a gas turbine, and a waste heat boiler having heat exchangers producing high pressure steam and low pressure steam to be fed to the steam turbine, by the use of exhaust gas from the gas turbine as a heat source; there are provided steam valves on steam passages through which steam is fed from the heat exchangers of waste heat boiler to the steam turbine; a detecting device for detecting the condition of steam flowing into the steam valve; and another detecting device for detecting the r.p.m. of the steam turbine; whereby the opening and closing of the steam valves are controlled by means of a selecting device which preferentially selects either of signals from the aforesaid detecting devices to adjust the quantity of steam to be fed to the steam turbine for controlling the steam turbine.
Abstract:
The invention described herein is a power plant in which energy is produced by means of a gas turbine driving, for example, an electric generator. The head for the gas turbine is produced by passing the compressed gas through tubes immersed in a fluidised bed burner, the heated gas then driving the turbine. In one preferred form of the invention the fluidised bed burner is fired with a sulfur contaminated fuel such as oil and the bed is constituted by particles, which will react with the sulfur. These sulfur-containing particles are then removed and the sulfur recovered by, for example, burning these particles to give SO2 gas which can be used in the preparation of sulfuric acid. In this way, polution of the atmosphere which occurs with conventional power plants fired with sulfur contaminated fuels can be avoided and the sulfur recovered and used.
Abstract:
A gas turbine engine including an auxiliary gasifier engine having an input air supply thereto provided from an intermediate bleed from the main engine compressor and including an auxiliary combustor and an auxiliary turbine for producing a combustion gas supply to a main combustion chamber having a primary and a secondary zone therein with the combustion gas supply producing recirculation air flow to mix a secondary air supply from the main compressor with the fuel supply to reduce emissions from the main combustion chamber.
Abstract:
In addition to tapping off a flow of steam from the steam turbine for mixing into the combustion gas flow to the gas turbine in order to regulate the temperature of the combustion gas flow, the plant can be regulated to insure continued operation of the air compressor and generator at low loads. To this end, a supplementary means is provided to tap off steam for mixing into the gas flow when the load decreases. The decrease in load can be measured off the generator run by the gas turbine or the generator run by the steam turbine.
Abstract:
When a failure occurs in a fuel control for a turbine engine in a multi-engine aircraft, the fuel metering valve for the engine with the failed fuel control is connected to operate in a slaved mode in response to the control signal produced by the prime fuel control of one of the other aircraft engines. For slaved mode operation, the control signal produced by the prime fuel control is slightly attenuated and lag compensation is applied thereto before the control signal is fed to the fuel metering valve of the slaved engine in order to compensate for variations in engine characteristics and to provide additional safety margin.
Abstract:
A system of apparatus for controllable in-situ combustion in subterranean hydrocarbon bearing formations containing bitumens with simultaneous production and recovery of energy sources supplying the mechanical and thermal energy required for the insitu combustion and operation of the facilities involved.