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Title: Single channel double-duct liquid metal electrical generator using a magnetohydrodynamic device

Abstract

A single channel double-duct liquid metal electrical generator using a magnetohydrodynamic (MHD) device. The single channel device provides useful output AC electric energy. The generator includes a two-cylinder linear-piston engine which drives liquid metal in a single channel looped around one side of the MHD device to form a double-duct contra-flowing liquid metal MHD generator. A flow conduit network and drive mechanism are provided for moving liquid metal with an oscillating flow through a static magnetic field to produce useful AC electric energy at practical voltages and currents. Variable stroke is obtained by controlling the quantity of liquid metal in the channel. High efficiency is obtained over a wide range of frequency and power output.

Inventors:
 [1];  [2]
  1. (Dadeville, AL)
  2. (Knoxville, TN)
Issue Date:
Research Org.:
LOCKHEED MARTIN ENRGY SYST INC
OSTI Identifier:
872387
Patent Number(s):
5923104
Assignee:
Lockheed Martin Energy Research Corporation (Oak Ridge, TN) ORNL
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
single; channel; double-duct; liquid; metal; electrical; generator; magnetohydrodynamic; device; mhd; provides; useful; output; electric; energy; two-cylinder; linear-piston; engine; drives; looped; form; contra-flowing; flow; conduit; network; drive; mechanism; provided; moving; oscillating; static; magnetic; field; produce; practical; voltages; currents; variable; stroke; obtained; controlling; quantity; efficiency; wide; range; frequency; power; flow conduit; single channel; device provides; drive mechanism; electrical generator; power output; magnetic field; liquid metal; wide range; mhd generator; static magnetic; electric energy; variable stroke; metal electrical; flowing liquid; double-duct liquid; channel double-duct; metal mhd; moving liquid; useful output; metal electric; channel device; produce useful; /310/

Citation Formats

Haaland, Carsten M., and Deeds, W. Edward. Single channel double-duct liquid metal electrical generator using a magnetohydrodynamic device. United States: N. p., 1999. Web.
Haaland, Carsten M., & Deeds, W. Edward. Single channel double-duct liquid metal electrical generator using a magnetohydrodynamic device. United States.
Haaland, Carsten M., and Deeds, W. Edward. Fri . "Single channel double-duct liquid metal electrical generator using a magnetohydrodynamic device". United States. https://www.osti.gov/servlets/purl/872387.
@article{osti_872387,
title = {Single channel double-duct liquid metal electrical generator using a magnetohydrodynamic device},
author = {Haaland, Carsten M. and Deeds, W. Edward},
abstractNote = {A single channel double-duct liquid metal electrical generator using a magnetohydrodynamic (MHD) device. The single channel device provides useful output AC electric energy. The generator includes a two-cylinder linear-piston engine which drives liquid metal in a single channel looped around one side of the MHD device to form a double-duct contra-flowing liquid metal MHD generator. A flow conduit network and drive mechanism are provided for moving liquid metal with an oscillating flow through a static magnetic field to produce useful AC electric energy at practical voltages and currents. Variable stroke is obtained by controlling the quantity of liquid metal in the channel. High efficiency is obtained over a wide range of frequency and power output.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

Patent:

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