A turbine engine for an aircraft can includes a casing. The casing can be a fan casing surrounding a fan assembly for drawing air into the turbine engine. The fan casing can have a peripheral wall. A surface cooler can be provided in the turbine engine confronting the peripheral wall of the fan casing. The surface cooler can have a mounting bracket for mounting the surface cooler to the fan casing.

A turbine engine for an aircraft can includes a casing. The casing can be a fan casing surrounding a fan assembly for drawing air into the turbine engine. The fan casing can have a peripheral wall. A surface cooler can be provided in the turbine engine confronting the peripheral wall of the fan casing. The surface cooler can have a mounting bracket for mounting the surface cooler to the fan casing.

An adaptive thermal management system for a gas turbine engine includes a heat exchanger transferring heat into a coolant, a temperature sensor measuring a temperature of the coolant, and a sensor assembly that measures a parameter of the coolant during operation of the gas turbine engine. The parameter measured by the sensor assembly is indicative of a capacity of the coolant to accept heat from the hot flow. A control valve governs a flow of coolant into the heat exchanger. A controller adjusts the control valve to communicate coolant to the heat exchanger based on a determined capacity of the coolant to accept heat in view of the measured temperature of the coolant and that the measured parameter of the coolant is within a predefined range.

An adaptive thermal management system for a gas turbine engine includes a heat exchanger transferring heat into a coolant, a temperature sensor measuring a temperature of the coolant, and a sensor assembly that measures a parameter of the coolant during operation of the gas turbine engine. The parameter measured by the sensor assembly is indicative of a capacity of the coolant to accept heat from the hot flow. A control valve governs a flow of coolant into the heat exchanger. A controller adjusts the control valve to communicate coolant to the heat exchanger based on a determined capacity of the coolant to accept heat in view of the measured temperature of the coolant and that the measured parameter of the coolant is within a predefined range.

Aspects of the present disclosure relate to steam cycle methods, systems, and apparatus for efficiently reducing carbon footprints in plant systems. In one aspect, a cycle is conducted in a plant system to collect CO.sub.2. In one aspect, a cycle is conducted in a plant system to recycle energy. The plant system includes one or more of a power production system, a refining system, and/or a petrochemical processing system.

Aspects of the present disclosure relate to steam cycle methods, systems, and apparatus for efficiently reducing carbon footprints in plant systems. In one aspect, a cycle is conducted in a plant system to collect CO.sub.2. In one aspect, a cycle is conducted in a plant system to recycle energy. The plant system includes one or more of a power production system, a refining system, and/or a petrochemical processing system.

A fracturing apparatus and a fracturing system are provided. The fracturing apparatus includes: a plunger pump configured to pressurize a fracturing fluid to form a high-pressure fracturing fluid; a turbine engine coupled to the plunger pump and configured to provide a driving force to the plunger pump; an auxiliary unit including a driving electric motor, the auxiliary unit being configured to provide the fracturing apparatus with at least one selected from the group consisting of start-up assist function, lubrication function, cooling function, and air supply function; and a power supply electrically coupled to the driving electric motor of the auxiliary unit to provide driving power.

A gas turbine engine includes: a fan that is arranged in front of a compressor and rotates in association with a rotating shaft; a casing including an inner shell accommodating the compressor, a combustor, and a turbine, and an outer shell arranged such that a bypass passage through which part of air supplied by the fan flows exists between the inner shell and the outer shell; bearings arranged inside the inner shell; an oil mist generator that is arranged outside the outer shell and generates oil mist by mixing oil with compressed air extracted through an extraction port of the compressor; an air pipe through which the compressed air extracted from the compressor is guided to the oil mist generator; and an oil mist pipe through which the oil mist generated by the oil mist generator is guided to the bearings. At least one of the air pipe and the oil mist pipe includes a heat exchanger that is arranged in the bypass passage and is cooled by the air flowing through the bypass passage.

A matrix for exchanging heat between a first fluid and a second fluid, in particular for an air-oil application in a turbine engine, includes an envelope defining a flow path of the first fluid and a network extending into the flow path and in which the second fluid flows. Along the axis defined by the curvature of the matrix, the dimensions of the envelope vary circumferentially (T(A)) and radially (R(A)). The matrix may be used with a heat exchanger.

A matrix for exchanging heat between a first fluid and a second fluid, in particular for an air-oil application in a turbine engine, includes an envelope defining a flow path of the first fluid and a network extending into the flow path and in which the second fluid flows. Along the axis defined by the curvature of the matrix, the dimensions of the envelope vary circumferentially (T(A)) and radially (R(A)). The matrix may be used with a heat exchanger.