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Title: Electrochemical heat engine

Electrochemical heat engines produce electrochemical work, and mechanical motion is limited to valve and switching actions as the heat-to-work cycles are performed. The electrochemical cells of said heat engines use molten or solid electrolytes at high temperatures. One or more reactions in the cycle will generate a gas at high temperature which can be condensed at a lower temperature with later return of the condensate to electrochemical cells. Sodium, potassium, and cesium are used as the working gases for high temperature cells (above 600 K) with halogen gases or volatile halides being used at lower temperature. Carbonates and halides are used as molten electrolytes and the solid electrolyte in these melts can also be used as a cell separator.
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. (Los Alamos, NM)
  2. (Alcalde, NM)
  3. (Cockeysville, MD)
  4. (Albuquerque, NM)
Publication Date:
OSTI Identifier:
863087
Report Number(s):
US 4090012
Resource Type:
Patent
Research Org:
Los Alamos National Laboratory (LANL), Los Alamos, NM
Country of Publication:
United States
Language:
English
Subject:
electrochemical; heat; engine; electrochemical; heat; engines; produce; electrochemical; mechanical; motion; limited; valve; switching; actions; heat-to-work; cycles; performed; electrochemical; cells; heat; engines; molten; solid; electrolytes; temperatures; reactions; cycle; generate; gas; temperature; condensed; temperature; return; condensate; electrochemical; cells; sodium; potassium; cesium; gases; temperature; cells; 600; halogen; gases; volatile; halides; temperature; carbonates; halides; molten; electrolytes; solid; electrolyte; melts; cell; separator; heat engines; heat engines; solid electrolytes; cell separator; chemical heat; chemical heat; heat engine; heat engine; heat engine; molten electrolyte; electrochemical cells; electrochemical cells; electrochemical cell; electrochemical cell; solid electrolyte; solid electrolyte; halogen gas; mechanical motion; temperature cells; switching action; electrochemical heat; electrochemical heat /429/