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- W2917401728 abstract "Generation of electricity by magnetohydrodynamic (MHD) means and by an electrochemical fuel cell is discussed. (1) MHD. If a stream of an electrically conducting fluid interacts with a magnetic or electric field, the kinetic energy of the stream may be converted to electric power. In order to do this, the fluid must be a gas and, at low gas temperatures, a substance with low ionization potential must be injected in order to induce ionization, e.g., an alkali metal such as Cs. Several conceptions of a MHD generator are described in which transverse and radial magnetic fields are used, and in which induction and pulsed streams are used. An estimate of the duct size of a 100-Mwe MHD generator is presented as a function of the gas electric conductivity. (2) Fuel Cell. The fuel is supplied to the cathode and the oxidant to the anode, the two cathcdes being connected through an electrolyte. An important disadvantage of such a cell is its low d-c voltage even with extensive series connection; the chemical reaction rates will have to be increased for economic operation. There are three fuel cell types: cells using H/sub 2/ and O/sub 2/ with aqueous electrolytes, redox cells, andmore » high-temperature cells operating above 500 deg C with molten salts. Fuel gases from coal or oil gasification prccesses (H/sub 2/, CO, hydrocarbons) appear to be promising in conjunction with a high-temperature fuel cell. The best direct generation methcds are concluded tentatively to be a gas- cooled reactor with thermionic diode fuel elements and a MHD generator coupled to a very hightemperature reactor. Fuel cells may find application as an economic means of increasing the operating load factor of nuclear installations. (D.L.C.)« less" @default.
- W2917401728 created "2019-03-02" @default.
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- W2917401728 date "1960-07-01" @default.
- W2917401728 modified "2023-09-27" @default.
- W2917401728 title "THE DIRECT GENERATION OF ELECTRICITY. PART 2" @default.
- W2917401728 hasPublicationYear "1960" @default.
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