A method for starting an aircraft engine in which the engine is coupled to a lubrication circuit including an oil pump system, the lubrication circuit being constructed and arranged to circulate oil in the engine, and in which an operating mode of the engine includes a stop mode and a standby mode, the starting method including, during a starting phase, measuring an oil temperature, the measurement being performed by a temperature detection device; depending on the temperature measured, compared to a threshold temperature, and depending on the operating mode of the engine, select a starting oil flow profile to be applied in said engine, the selection being performed by a calculator, and applying the selected starting oil flow profile by the oil pump system, the oil pump system being controlled by the calculator.

A combined cycle heat engine (10). The engine (10) comprises a first gas turbine engine (11) comprising a first air compressor system (14), a first combustion system (16) and a first turbine system (18) and a second gas turbine engine (32) comprising a second air compression system (36), a second turbine system (40), and a heat exchanger (38) configured to transfer heat from an exhaust (24) of the first turbine system (18) to compressed air from the second air compressor (36). The second gas turbine engine (32) comprises a second combustion system (20) downstream of the heat exchanger (38) and upstream of the second turbine system (40).

A combined cycle heat engine (10). The engine (10) comprises a first gas turbine engine (11) comprising a first air compressor system (14), a first combustion system (16) and a first turbine system (18) and a second gas turbine engine (32) comprising a second air compression system (36), a second turbine system (40), and a heat exchanger (38) configured to transfer heat from an exhaust (24) of the first turbine system (18) to compressed air from the second air compressor (36). The second gas turbine engine (32) comprises a second combustion system (20) downstream of the heat exchanger (38) and upstream of the second turbine system (40).

A steam turbine power generation facility and an operation method of such facility not only overcome the thermal elongation difference between a revolving body and a stationary body of a turbine so as to shorten start-up time but also suppress the efficiency of such facility from deterioration. The steam turbine power generation facility includes a boiler to generate steam; a high-pressure turbine into which the steam generated by the boiler flows; an intermediate-pressure turbine into which steam worked at the high-pressure turbine flows; and a low-pressure turbine into which steam worked at the intermediate-pressure turbine flows, in which the high-pressure turbine and the intermediate-pressure turbine are respectively provided with a heating section which is formed by communicating through the high-pressure turbine and the intermediate-pressure turbine, and further includes a pipe to make the steam worked at the high-pressure turbine flow into the heating section.

A steam turbine power generation facility and an operation method of such facility not only overcome the thermal elongation difference between a revolving body and a stationary body of a turbine so as to shorten start-up time but also suppress the efficiency of such facility from deterioration. The steam turbine power generation facility includes a boiler to generate steam; a high-pressure turbine into which the steam generated by the boiler flows; an intermediate-pressure turbine into which steam worked at the high-pressure turbine flows; and a low-pressure turbine into which steam worked at the intermediate-pressure turbine flows, in which the high-pressure turbine and the intermediate-pressure turbine are respectively provided with a heating section which is formed by communicating through the high-pressure turbine and the intermediate-pressure turbine, and further includes a pipe to make the steam worked at the high-pressure turbine flow into the heating section.

A method of assembling a first part to a second part while applying thermal energy to at least one of the parts. The application of thermal energy is terminated when the first part and second part are in a completed assembly position relative to each other. The thermal energy absorbed by the at least one of: the first part; and the second part is then dissipated until the first part and second part are engaged in an interference fit.

A turbine module (100) for a heat engine (104) wherein the turbine module (100) defines a working fluid flow duct (60) between a turbine module inlet (110) and a turbine module outlet (114) configured to expand a working fluid as the working fluid passes along the working fluid flow duct (60). The turbine module comprises a first heat exchanger (37) and a turbine rotor stage (24) each provided in the working fluid flow duct (60). The first heat exchanger (37) is provided in flow series between the turbine module inlet (110) and the turbine rotor stage (24); and the turbine stage (24) is provided in flow series between the first heat exchanger (37) and the turbine module outlet (114). The first heat exchanger (37) defined by a wall (126) having an external surface (182) which is located in the working fluid flow duct (60). There is provided a heat supply unit (136) which defines a portion (140) of the working fluid flow duct (60) in flow series between the turbine rotor stage (24) and turbine module outlet (114). The first heat exchanger (37) is in heat transfer communication with the heat supply unit (136), and the first heat exchanger (37) is configured such that it is operable to transfer heat received from the heat supply unit (136) to the working fluid (150) passing the first heat exchanger (37).

A stator blade heating system is to heat a hollow stator blade of a steam turbine, and includes: an electromagnetic coil disposed within a hollow portion of the stator blade; and a heating device electrically connected to the electromagnetic coil and capable of supplying an alternating current to the electromagnetic coil. A core wound with the electromagnetic coil is disposed within the hollow portion of the stator blade. The stator blade heating system further includes a regulator that regulates output of the alternating current of the heating device, and a temperature sensor that detects temperature of the stator blade. The regulator regulates the output of the heating device on the basis of the temperature detected by the temperature sensor.

A stator blade heating system is to heat a hollow stator blade of a steam turbine, and includes: an electromagnetic coil disposed within a hollow portion of the stator blade; and a heating device electrically connected to the electromagnetic coil and capable of supplying an alternating current to the electromagnetic coil. A core wound with the electromagnetic coil is disposed within the hollow portion of the stator blade. The stator blade heating system further includes a regulator that regulates output of the alternating current of the heating device, and a temperature sensor that detects temperature of the stator blade. The regulator regulates the output of the heating device on the basis of the temperature detected by the temperature sensor.

A stator vane for a steam turbine includes: a vane body having an airfoil cross section including a pressure-side partition wall having a concave surface shape and a suction-side partition wall having a convex surface shape, the vane body having a hollow section formed between an inner surface of the pressure-side partition wall and an inner surface of the suction-side partition wall; and a first division wall dividing the hollow section into a first hollow section positioned at a leading edge side and a second hollow section positioned at a trailing edge side. The first hollow section is configured to be supplied with a fluid, or as a sealed space, and a slit is formed on at least one of the pressure-side partition wall or the suction-side partition wall, the slit being in communication with the second hollow section.