摘要:
A method of adjusting the mass stream and flow density of a finely divided, fine-grained solid fuel is described. The method uses a dosing container having a fluidized bed at its bottom part and into which the solid fuel is charged above the fluidized bed. A fluidizing gas is adjustably fed to the bottom part of the container and a compensation gas is fed to the upper part of the latter. Mass stream parameters and density are measured in the discharge or supply pipe communicating with the fluidizing bed and the required weight of flow of the fluidizing gas is computed by a computer. In this manner, the regulation of the mass stream is effected by adjusting the loose density of the charge of the dusty material in the container.
摘要:
A switchgear unit switches high DC voltages, particularly for interrupting of direct current between a direct current source and an electrical device. The switchgear unit contains two connections which project from a housing and which are electrically conductively coupled by a conductor path, a contact system which is arranged between the first and second connections and an isolating apparatus that can be tripped by a thermal fuse. The thermal fuse contains a melting location which is arranged in the conductor path and which is connected first to the contact system and second via a moving conductor section to the first connection. The isolating apparatus is tripped and the connection between the conductor section and the contact system is broken at the melting location when an arc produced when the contact system is opened has caused the melting temperature of the melting location to be reached or exceeded.
摘要:
The invention comprises a satellite (1) having at least one transmitting and/or receiving unit (2), which has an antenna assembly (3) for transmitting and/or receiving air-traffic control radio signals (4), wherein the antenna assembly (3) has a plurality of directional antennas (6a to 6c), which each form a respective transmitting and/or receiving sector (7a to 7c, 22a to 22e) within a defined transmitting and/or receiving area (21) and are designed to transmit and/or receive air-traffic control radio signals (4) in the respective transmitting and/or receiving sector (7a to 7c, 22a to 22e) of the directional antenna.
摘要:
A computer program product for integrated key serving is provided. The computer program product includes a tangible storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method. The method includes using a smart card of two or more smart cards with a support element of two or more support elements to create an encryption key and storing the encryption key in an encrypted file that can only be decrypted by the smart card and the support element used to create the encryption key.
摘要:
Managing the workload across one or more partitions of a plurality of partitions of a computing environment. One or more processors are identified in a partition to be managed by a quality weight defined according to characteristics of each corresponding processor. A load of each identified processor is measured depending on the requests already allocated to be processed by each corresponding processor. Each identified processor has a performance factor determined based on the measured load and the quality weight. The performance factor is a measurement of processor load. A new request is identified to be allocated to the partition, selecting a processor from the partition with the lowest performance factor. The new request is allocated to the selected processor.
摘要:
A gas turbine and a method for operating a gas turbine includes a combustion chamber, a turbine having rows of blades, an air compressor, a combustion-air line for feeding compressed air into the combustion chamber, a fuel supply unit, at least one fuel line, at least one cooling-air line. Some of the blades have an interior defining cavities whereby first cavities direct at least a portion of fuel to the combustion chamber through the first cavities at least in a section of the blades, thereby preheating the fuel before being introduced into the combustion chamber. The system defined by the first cavities and the section of the blades is closed relative to an interior of the gas turbine. Second cavities fluidically connect to the air compressor and receive at least a portion of the cooling air for cooling the blades.
摘要:
An electric connector includes two complementary connector members, one of which has spring contacts as contact elements and the other has blade contacts as contact elements, wherein the contact elements are mounted in a row or in several parallel rows on base members. The base members are mounted on frame-like enclosing members of housings which extend parallel to the direction of insertion of the contact elements and which serve for the mutual guidance of the housings during the insertion. In the joined state of the connector members, the spring contacts and the corresponding blade contacts can be placed in contact with each other and out of contact from each other by means of contact slide members which are displaceable along the row or rows of contact elements. The connector members can be positively coupled transversely of the direction of insertion by means of locking slide members. The contact slide members and the locking slide members are mounted on the same connector member and are in engagement with a common swivel lever mounted on the same connector member. The engagement between the contact members and the locking slide members is such that, during the coupling procedure as well as during the uncoupling procedure, initially only the locking slide members are movable and the contact slide members are movable subsequently.
摘要:
A method for determining a suction mass flow of a gas turbine is provided. A turbine inlet pressure, a combustion chamber pressure loss and a pressure loss between an environment and a compressor inlet are determined as input parameters. For each input parameter a provisional value for the suction mass flow is ascertained and for each provisional value a validated value by cross-balancing with the other provisional values is ascertained. A characteristic quantity of the suction mass flow of the gas turbine is generated as an average value from the validated values. The suction mass flow is determined without solving energy balances, without information relating to a fuel calorific value, and without information relating to a fuel mass flow.
摘要:
A compressor blade having at least one nozzle for ejecting fluid, in particular for ejecting water, is provided. The at least one nozzle is produced as a laminar structure in which, in particular, individual layers such as metal sheets are laid on top of each other, and has differently orientated channel sections of a channel between an inlet and an outlet, wherein the metal sheets have cutouts corresponding to the channel sections. The nozzle geometry makes it possible to prevent the formation of droplets as water exits a compressor blade.
摘要:
A spool carrier has a winding body with a shell having a trapezoidal cross section with two substantially right angles and one acute angle, wherein the spool wire is guided on the obtuse angle edge of the winding body, beginning parallel to the front face edges of the winding body, along the side surface adjoining the obtuse angle edge, around the winding body, to the acute angle edge of the winding body, and guided on the front face from the acute to the obtuse angle edge at an angle to the front face edge, such that it comes to rest on the obtuse angle edge in one winding step directly adjacent to the winding wire of the previous winding, and in one winding step in the next adjacent groove between two windings of the previous layer, or optionally between the flange and the winding of the previous layer.