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Title: Pumping power considerations in the designs of NASA-Redox flow cells

Abstract

The NASA-Redox Energy Storage system uses two fully soluble redox couples as anode and cathode fluids. Both fluids are pumped through a redox cell, or stack of cells, where the electrochemical reactions take place at porous carbon felt electrodes. Pressure drop losses are therefore associated with this system due to the continuous flow of reactant solutions. The exact pressure drop within a redox low cell is directly dependent on the flow rate as well as the various cell dimensions. Pumping power requirements for a specific set of cell operating conditions can be found for various cell geometries once the flow rate and pressure drop have been determined. Since these pumping power requirements contribute to the overall system parasitic energy losses which must be minimized, the choice of cell geometry becomes critical. Pressure drop data for six different cell geometries of various flow port, manifold, and cavity dimensions are presented and discussed.

Authors:
Publication Date:
Research Org.:
National Aeronautics and Space Administration, Cleveland, OH (USA). Lewis Research Center
OSTI Identifier:
6467640
Report Number(s):
DOE/NASA/12726-7; NASA-TM-82598
ON: DE81028789
DOE Contract Number:  
AI04-80AL12726
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; 25 ENERGY STORAGE; ENERGY STORAGE SYSTEMS; REDOX FUEL CELLS; DESIGN; CHROMIUM CHLORIDES; ENERGY LOSSES; FLOW RATE; FLUIDS; IRON CHLORIDES; PRESSURE DROP; PUMPING; REDOX REACTIONS; CHEMICAL REACTIONS; CHLORIDES; CHLORINE COMPOUNDS; CHROMIUM COMPOUNDS; DIRECT ENERGY CONVERTERS; ELECTROCHEMICAL CELLS; ENERGY SYSTEMS; FUEL CELLS; HALIDES; HALOGEN COMPOUNDS; IRON COMPOUNDS; LOSSES; REGENERATIVE FUEL CELLS; TRANSITION ELEMENT COMPOUNDS; 300503* - Fuel Cells- Materials, Components, & Auxiliaries; 250800 - Energy Storage- Chemical

Citation Formats

Hoberecht, M A. Pumping power considerations in the designs of NASA-Redox flow cells. United States: N. p., 1981. Web.
Hoberecht, M A. Pumping power considerations in the designs of NASA-Redox flow cells. United States.
Hoberecht, M A. Mon . "Pumping power considerations in the designs of NASA-Redox flow cells". United States.
@article{osti_6467640,
title = {Pumping power considerations in the designs of NASA-Redox flow cells},
author = {Hoberecht, M A},
abstractNote = {The NASA-Redox Energy Storage system uses two fully soluble redox couples as anode and cathode fluids. Both fluids are pumped through a redox cell, or stack of cells, where the electrochemical reactions take place at porous carbon felt electrodes. Pressure drop losses are therefore associated with this system due to the continuous flow of reactant solutions. The exact pressure drop within a redox low cell is directly dependent on the flow rate as well as the various cell dimensions. Pumping power requirements for a specific set of cell operating conditions can be found for various cell geometries once the flow rate and pressure drop have been determined. Since these pumping power requirements contribute to the overall system parasitic energy losses which must be minimized, the choice of cell geometry becomes critical. Pressure drop data for six different cell geometries of various flow port, manifold, and cavity dimensions are presented and discussed.},
doi = {},
url = {https://www.osti.gov/biblio/6467640}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {6}
}

Technical Report:
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