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公开(公告)号：US4645959A
公开(公告)日：1987-02-24
申请号：US741548
申请日：1985-08-14
申请人： Flavio Dobran
发明人： Flavio Dobran
CPC分类号： H02K44/085
摘要： The liquid lithium may be used in a magnetohydrodynamic generator to produce the electrical power. The lithium expansion in the generator is accomplished by a gas whose expansion process is kept nearly isothermal from the high rate of heat transfer from lithium to the gas. The near-constant temperature of lithium in the generator is produced by a chemical reaction with the oxidizer gas sulfur hexafluoride which is also used to expand lithium at a high velocity. Since the oxidizer gas is depleted as it reacts with the fuel lithium, another gas such as helium is introduced at the generator inlet to accelerate the liquid metal across the magnetic field which is applied perpendicularly to the main flow direction. The liquid metal lithium combustion with the sulfur hexafluoride yields a high rate of energy release and the products of combustion are liquids above 1065 degrees Kelvin. By operating the system below the consulate point temperature of 1638 degrees Kelvin, the combustion products can be easily separated and lithium recirculated by an electromagnetic pump or a nozzle-diffuser combination. The neutral gas helium can be also easily separated and may or may not be recirculated through the system. The proposed power system is estimated to yield a power density in excess of 30 MWe/m.sup.3 at an operating temperature of about 1200 degrees Kelvin and with an applied magnetic field strength of a few Tesla.
摘要翻译： 液体锂可用于磁流体动力发电机以产生电力。 发电机中的锂膨胀通过一种气体实现，其膨胀过程从锂从气体的高热传递速率几乎保持恒定。 发生器中锂的近似恒定温度是通过与六氟化硫的化学反应而产生的，六氟化硫也用于高速膨胀锂。 由于氧化剂气体与燃料锂反应而耗尽，所以在发生器入口处引入诸如氦气的其它气体，以加速垂直于主流动方向施加的磁场的液态金属。 用六氟化硫燃烧的液态金属锂产生较高的能量释放率，并且燃烧产物是高于1065开氏度的液体。 通过将系统操作在领馆温度1638开氏度以下，可以容易地分离燃烧产物，并通过电磁泵或喷嘴 - 扩散器组合再循环锂。 中性气体氦气也可以容易地分离，并且可以或可以不通过系统再循环。 估计所提出的电力系统在约1200开氏度的操作温度下和在特斯拉施加的磁场强度下产生的功率密度超过30MWe / m3。
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2.发明授权Method of generating electricity using an endothermic coal gasifier and MHD generator 失效使用吸热煤气化炉和MHD发电机发电的方法
公开(公告)号：US4345173A
公开(公告)日：1982-08-17
申请号：US177327
申请日：1980-08-12
申请人： David D. Marchant , John M. Lytle
发明人： David D. Marchant , John M. Lytle
CPC分类号： H02K44/08
摘要： A system and method of generating electrical power wherein a mixture of carbonaceous material and water is heated to initiate and sustain the endothermic reaction of carbon and water thereby providing a gasified stream containing carbon monoxide, hydrogen and nitrogen and waste streams of hydrogen sulfide and ash. The gasified stream and an ionizing seed material and pressurized air from a preheater go to a burner for producing ionized combustion gases having a temperature of about 5000.degree. to about 6000.degree. F. which are accelerated to a velocity of about 1000 meters per second and passed through an MHD generator to generate DC power and thereafter through a diffuser to reduce the velocity. The gases from the diffuser go to an afterburner and from there in heat exchange relationship with the gasifier to provide heat to sustain the endothermic reaction of carbon and water and with the preheater to preheat the air prior to combustion with the gasified stream. Energy from the afterburner can also be used to energize other parts of the system.
摘要翻译： 一种产生电力的系统和方法，其中加热碳质材料和水的混合物以引发并维持碳和水的吸热反应，从而提供含有一氧化碳，氢和氮的气化流以及硫化氢和灰分的废物流。 气化物流和离子化种子材料和来自预热器的加压空气进入燃烧器，用于产生温度为约5000°至约6000°F的离子化燃烧气体，其加速至约1000米/秒的速度并通过 通过MHD发生器产生直流电力，此后通过扩散器降低速度。 来自扩散器的气体进入后燃器，并从那里与气化器的热交换关系，以提供热量以维持碳和水的吸热反应，并与预热器在气化燃烧之前预热空气。 来自加力器的能量也可以用于激励系统的其他部分。
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公开(公告)号：US4317057A
公开(公告)日：1982-02-23
申请号：US159815
申请日：1980-06-16
CPC分类号： H02K44/08
摘要： A channel of a series-type magnetohydrodynamic generator comprises a central section with sectionalized electrodes, the ends of the central section adjoining respective transition sections including sectionalized electrodes. Adjacent the free end of each transition section is an end section made as a continuous load electrode. There is a switching element between each pair of the electrodes of the transition sections and between the "outermost electrode of the transition section--load electrode". Connected in parallel with the switching elements are relay and a respective type limit voltage switching elements. Sensitive elements of the same type are inserted between the outermost adjoining sectionalized electrodes of the central and the transition sections.
摘要翻译： 串联型磁流体动力发电机的通道包括具有分段电极的中心部分，中心部分的端部邻接包括分段电极的各个过渡部分。 在每个过渡段的自由端附近是作为连续负载电极的端部。 在过渡部分的每对电极之间以及“过渡部分负载电极的最外侧电极”之间存在开关元件。 与开关元件并联连接的是继电器和相应的类型限制电压开关元件。 相同类型的敏感元件插入在中心部分和过渡部分的最邻近的分段电极之间。
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公开(公告)号：US4140931A
公开(公告)日：1979-02-20
申请号：US822971
申请日：1977-08-08
CPC分类号： H02K44/10
摘要： An improved electrode for use as a current collector in the channel of a magnetohydrodynamid (MHD) generator utilizes an elongated monolithic cap of dense refractory material compliantly mounted to the MHD channel frame for collecting the current. The cap has a central longitudinal channel which contains a first layer of porous refractory ceramic as a high-temperature current leadout from the cap and a second layer of resilient wire mesh in contact with the first layer as a low-temperature current leadout between the first layer and the frame. Also described is a monolithic ceramic insulator compliantly mounted to the frame parallel to the electrode by a plurality of flexible metal strips.
摘要翻译： 在磁流体动力学（MHD）发生器的通道中用作集电器的改进的电极利用兼容地安装到MHD通道框架上的收集电流的致密耐火材料的细长单片盖。 盖具有中心纵向通道，其包含第一层多孔耐火陶瓷作为来自盖的高温电流引出，以及与第一层接触的第二层弹性丝网，作为第一层之间的低温电流引出 层和框架。 还描述了通过多个柔性金属条，它们通过柔性地安装到平行于电极的框架上的单片陶瓷绝缘体。
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公开(公告)号：US4134034A
公开(公告)日：1979-01-09
申请号：US775996
申请日：1977-03-09
申请人： Pal Dardai , Ferenc Meckl , Jozsef Papp , Elemer Varga
发明人： Pal Dardai , Ferenc Meckl , Jozsef Papp , Elemer Varga
摘要： In combustion fired magnetohydrodynamic power systems conventional fuels such as coal, oil, natural gas and the like are first completely burned, and then shock waves are generated in the combustion products by means of small amounts of explosives which are preferably initiated by pulsed lasers. Thus, highly ionized particles of great flow velocities are obtained which are supplied into a usual MHD generator to induce a ripple current in a load circuit at high efficiency.
摘要翻译： 在燃烧发射的磁流体动力系统中，首先将诸如煤，油，天然气等常规燃料完全燃烧，然后借助于优选由脉冲激光器起动的少量爆炸物在燃烧产物中产生冲击波。 因此，获得大流速的高电离粒子，其被提供给通常的MHD发生器，以在高效率下在负载电路中引起纹波电流。
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公开(公告)号：US4093879A
公开(公告)日：1978-06-06
申请号：US773360
申请日：1977-03-01
摘要： An electrode capable of withstanding high temperatures and suitable for use as a current collector in the channel of a magnetohydrodynamic (MHD) generator consists of a sintered powdered metal base portion, the upper surface of the base being coated with a first layer of nickel aluminide, an intermediate layer of a mixture of nickel aluminide - refractory ceramic on the first layer and a third or outer layer of a refractory ceramic material on the intermediate layer. The sintered powdered metal base resists spalling by the ceramic coatings and permits greater electrode compliance to thermal shock. The density of the powdered metal base can be varied to allow optimization of the thermal conductivity of the electrode and prevent excess heat loss from the channel.
摘要翻译： 能够耐受高温并适合用作磁流体动力学（MHD）发生器的通道中的集电器的电极由烧结的粉末金属基部分组成，基体的上表面涂覆有第一层镍铝化物， 第一层上的镍铝 - 耐火陶瓷的混合物的中间层和中间层上的难熔陶瓷材料的第三或外层。 烧结的粉末状金属基体可以抵抗陶瓷涂层的剥落，并允许更大的电极符合热冲击。 可以改变粉末状金属基底的密度，以便优化电极的导热性，并防止通道发生多余的热损失。
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公开(公告)号：US3710153A
公开(公告)日：1973-01-09
申请号：US3710153D
申请日：1970-10-20
发明人： BARBACSY L , MUCK G
CPC分类号： H02K44/085
摘要： An MHD alternating current generator for electric power supply, preferably for aerospace application having a liquid, conducting medium, e.g., a liquid metal, which is alternately moved in only one of, e.g., two channels which are located within a steady magnetic field perpendicular to the direction of flow ''''A,'''' the magnetic field being produced by superconducting coils.
摘要翻译： 一种用于电力供应的MHD交流发电机，优选用于具有液体，导电介质（例如，液态金属）的航空航天应用，该液体金属在仅仅一个例如两个通道中移动，所述两个通道位于垂直于 流动方向“A”，磁场由超导线圈产生。
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公开(公告)号：US3586890A
公开(公告)日：1971-06-22
申请号：US3586890D
申请日：1969-06-12
CPC分类号： H02K44/08
摘要： The invention relates to a thermoelectric device including parallel, spaced discs axially of which is provided a plasma chamber with means being included for producing a magnetic field perpendicular to the discs and electrodes for collecting the current generated in the plasma.
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公开(公告)号：US3524086A
公开(公告)日：1970-08-11
申请号：US3524086D
申请日：1967-04-26
申请人： PARSONS & CO LTD C A
CPC分类号： H02K44/08
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