摘要:
A cycloidal magnetic gear system for a turbine system is disclosed. The system includes a first stator magnet ring, a second stator magnet ring positioned opposite the first stator magnet ring, and a rotor positioned between the first and second stator rings of magnets. The rotor may include a first side positioned adjacent the first stator magnet ring, and a second side positioned adjacent the second stator magnet ring. The system may include a first rotor magnet ring affixed to the first side of the rotor, adjacent the first stator magnet ring. Additionally, the system may include a second rotor magnet ring affixed to the second side of the rotor, adjacent the second stator magnet ring. The rotor may be configured to rotate eccentrically about a center-axis of the first and/or second stator magnet ring.
摘要:
Drilling tool with downhole electric power generator assembly (500), wherein the drilling tool comprising a bottom hole assembly (11) with a foremost full-face drill bit (20) driven by an internal drive shaft (150) transferring feed and rotation forces from a drill string of a drill rig onto the full-face drill bit (20), and further comprising a rotation preventing assembly (100) including at least one pressure pad or packer element (102) for engagement with a borehole wall by activation by pressure from supply of drilling fluid, and a downhole power generator assembly (510), wherein the downhole electric power generator assembly (510) is formed by an outer tube (511) housing at least one stator generator segment (512) and at least one rotor generator segment (513), wherein the at least one stator generator segment (512) is arranged to the outer tube (511) and wherein a part or segment of the inner drive shaft (150) is arranged for accommodating the at least one rotor generator segment (513), wherein the stator generator segment (512) is arranged for accommodating the inner drive shaft (150) with the at least one accommodated rotor generator segment (513).
摘要:
The present teachings include an energy recovery device usable in multiple applications, for example hydropower and vehicle power plant applications. In one aspect, an energy recovery device includes a housing having an inlet and an outlet in fluid communication with an internal cavity, and a pair of counter-rotating rotors having intermeshed lobes disposed within the housing internal cavity. Each rotor defines a transport volume between the housing and a pair of adjacent lobes and has a calculated maximum ideal twist angle below which the transport volume will be sealed from both the housing inlet and housing outlet. Each rotor also has an actual twist angle that exceeds the maximum ideal twist angle.
摘要:
Liquid cryogen from a tank having a head space pressure P1 is vaporized with a pressure building vaporizer to gaseous cryogen and the pressure of the gaseous cryogen is built to a pressure P2. The pressurized gaseous cryogen at pressure P2 is expanded across an expander to decrease its pressure and fed to a point of use at an installation including the vaporizer at a pressure P3. P2 ? 2 X P3. Energy from the expanded gas may be recovered in the form of mechanical energy, electrical energy.
摘要翻译:来自具有顶部空间压力P1的罐的液体冷冻剂通过压力建筑蒸发器蒸发到气态冷冻剂,并且将气态冷冻剂的压力构建为压力P2。 在压力P2处的加压气态冷冻剂在膨胀器上膨胀以降低其压力,并在包括蒸发器在P3的压力下的装置处被供给到使用点。 P2? 2 X P3。 来自膨胀气体的能量可以以机械能,电能的形式被回收。
摘要:
Optimizing power generation from waste heat in large industrial facilities such as petroleum refineries by utilizing a subset of all available hot source streams selected based, in part, on considerations for example, capital cost, ease of operation, economics of scale power generation, a number of organic Rankine cycle (ORC) machines to be operated, operating conditions of each ORC machine, combinations of them, or other considerations are described. Subsets of hot sources that are optimized to provide waste heat to one or more ORC machines for power generation are also described. Further, recognizing that the utilization of waste heat from all available hot sources in a mega-site such as a petroleum refinery and aromatics complex is not necessarily or not always the best option, hot source units in petroleum refineries from which waste heat can be consolidated to power the one or more ORC machines are identified.
摘要:
Configurations and related processing schemes of specific inter-plants and hybrid, intra- and inter- plants waste heat recovery schemes for thermal energy consumption reduction in integrated refining-petrochemical facilities synthesized for grassroots medium grade crude oil semi-conversion refineries to increase energy efficiency from specific portions of low grade waste heat sources are described. Configurations and related processing schemes of specific inter-plants and hybrid, intra- and inter- plants waste heat recovery schemes for thermal energy consumption reduction in integrated refining-petrochemical facilities synthesized for integrated medium grade crude oil semi-conversion refineries and aromatics complex for increasing energy efficiency from specific portions of low grade waste sources are also described.
摘要:
A heat engine system and a method for cooling a fluid stream in thermal communication with the heat engine system are provided. The heat engine system may include a working fluid circuit configured to flow a working fluid therethrough, and a cooling circuit in fluid communication with the working fluid circuit and configured to flow the working fluid therethrough. The cooling circuit may include an evaporator in fluid communication with the working fluid circuit and configured to be in fluid communication with the fluid stream. The evaporator may be further configured to receive a second portion of the working fluid from the working fluid circuit and to transfer thermal energy from the fluid stream to the second portion of the working fluid.
摘要:
An auxiliary power unit for an aircraft, having an engine core, a compressor having an outlet in fluid communication with the engine core inlet, a turbine section in fluid communication with the engine core outlet, and an excess air duct having a first end in fluid communication with the compressor outlet and a second end in fluid communication with a turbine inlet of the turbine section. The excess air duct defines a flow path between the compressor outlet and the turbine section separate from the engine core. The auxiliary power unit may include a generator in driving engagement with the engine core to provide electrical power for the aircraft. A method of providing compressed air and electrical power to an aircraft is also discussed.
摘要:
A power generator assembly having a housing with a hollow chamber or shell. Received within the shell is a canister having generator sets. The housing and generators are mounted to a rotatable shaft that is connected to an anchor stand. The anchor stand has a lever with a counter weight that resists anchor torque.