MAN Energy Solutions SE

A device providing a synthetic gas mixture, providing a mass flow of carbon dioxide at a first pressure level and a mass flow of hydrogen at a second pressure level, having a splitting device splitting the mass flow of carbon dioxide into a first and second part mass flow, a part mass flow turbine expanding the first part mass flow, a first mixing device mixing the expanded first part mass flow with the mass flow of hydrogen, a compression device compresses the carbon dioxide and hydrogen to a third pressure level, a bypass line that conducts the second part mass flow past the part mass flow turbine, the first mixing device and the compression device in the direction towards a second mixing device, to mix at the second mixing device the second part mass flow conducted via the bypass line with the mixture compressed by the compression device.

A fuel injector of an internal combustion engine, having a first nozzle needle guided in a first needle guide, which interacts with first fuel injection orifices such that the first nozzle needle either opens or blocks flow of a first fuel through the first fuel injection orifices, a second nozzle needle guided in a second needle guide, which interacts with second fuel injection orifices such that the second nozzle needle either opens or blocks flow of a second fuel through the second fuel injection orifices, a first solenoid valve controls the first nozzle needle, a second solenoid valve controls the second nozzle needle. The first and second solenoid valve are integrated in the fuel injector such that the first and second solenoid valves are each arranged in the longitudinal or axial direction of the fuel injector between the nozzle needles and a fuel storage space of the fuel injector.

Fuel injector for supplying fuel to a combustion chamber of a cylinder, having a first nozzle needle guided in a first nozzle guide, which interacts with first fuel injection orifices such that the first nozzle needle either opens or blocks a fuel flow of a first fuel through the first fuel injection orifices, a second nozzle needle guided in a second needle guide, which interacts with second fuel injection orifices such that the second nozzle needle, either opens or blocks a fuel flow of a second fuel through the second fuel injection orifices, a first fuel storage space for the first fuel, and a second fuel storage space for the second fuel me. The first and second fuel storage spaces are arranged next to one another in the transverse or radial direction of the fuel injector and overlap in the longitudinal or axial direction of the fuel injector.

A DAC plant for extracting carbon dioxide from ambient air, having a first air flow channel for ambient air, from which carbon dioxide is extracted, a system for drying the ambient air, a carbon dioxide extraction device for extracting carbon dioxide, and a second air flow channel for waste air. The system includes a first rotating storage body, which carries an adsorbent for water and is driven such that segments of the storage body are periodically in operative flow connection with the first second air flow channels. The carbon dioxide extraction device includes at least one second rotating storage body, which carries an adsorbent for carbon dioxide. The second rotating storage body is driven such that segments of the storage body are periodically in operative flow connection with the first air flow channel and a carrier gas flow channel.

The disclosure relates to a system for separating carbon dioxide from a gas flow, in particular from an air flow. The system comprises at least one first functional unit and at least one second functional unit connected downstream of the first functional unit in the flow direction of a main air flow through the system. It is provided that the first functional unit has a first number of functional modules and the second functional unit has a second number of functional modules, wherein the second number is higher than the first number.

A multi-stage compressor, namely a multi-stage radial compressor or a multi-stage diagonal compressor, having a compressor rotor, the compressor rotor has a rotor shaft and multiple impellers fastened to the rotor shaft which are subjected to inflow in the axial direction and impellers which are subjected to outflow in the radial direction or diagonal direction. Each impeller has a curved inner shroud, a curved outer shroud and multiple curved impeller blades arranged between the inner shroud and the outer shroud. The inner shroud, the outer shroud, and the impeller blades each consists of a fibre composite material. The rotor shaft extends through a recess in the inner shroud of the respective impeller.

A method for operating a compressor. A flow rate of the process gas through the compressor is determined. Dependent on a measured inlet pressure of the compressor and a measured outlet pressure of the compressor, a delivery head of the compressor is determined. A surge limit controller, dependent on the flow rate and dependent on the delivery head determines a control variable for a control element interacting with the compressor such that the compressor is operated along a control line, which has a defined distance from the surge limit of the compressor. A proportion of steam of the process gas is determined, and the control line, along which the compressor is operated, is adapted dependent on the proportion of steam.

A gas supply system, having a gas regulating station for supplying an engine with gaseous fuel and a double-walled gas line extending from the gas regulating station to the engine, which comprises an inner and an outer pipe, in a gas fuel operating mode the inner pipe is flowed through by the gaseous fuel towards an engine-side end of the double-walled gas line, an inert gas purging line, and a first shut-off valve assigned to the inert gas purging line. In a purging mode inert gas can be fed to the outer pipe at the gas regulating station-side, which inert gas flows through the outer pipe in the direction of the engine-side end of the double-walled gas line, where it passes into the inner pipe and flows via the inner pipe towards the gas regulating station-side end of the double-walled gas line.

A geothermal energy system, having a carbon dioxide store at a first temperature and density, a retrieving device for retrieving carbon dioxide at a second temperature higher than the first temperature and a second density lower than the first density, a heat pump having a first heat exchanger, a compressor, a second heat exchanger, and an expander or a throttle. The first heat exchanger transmits thermal energy of the carbon dioxide to a process medium of the heat pump. The compressor compresses the process medium downstream of the first heat exchanger. The second heat exchanger transmits thermal energy of the compressed process medium to a consumer, and the expander or the throttle expands the process medium downstream of the second heat exchanger, and an introduction device introduces carbon dioxide downstream of the retrieving device and upstream of the heat pump into the system.

A device for generating energy from compressed air, having an air turbine for expanding gaseous air starting out from a first pressure level to a second pressure level and in the process produce first energy, a combustion chamber for receiving the air expanded in the air turbine and combust fuel in the same, and an exhaust gas turbine for expanding exhaust gas generated during the combustion of the fuel in the combustion chamber and in the process produce second energy. At least the air turbine and the exhaust gas turbine have a common housing.