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Study on fuel supplying method and methanol concentration sensor for the high efficient operation of methanol fuel cells. Methanol nenryo denchi no unten ni okeru nenryo kyokyu hoho no kento to methanol nodo sensor no kaihatsu

Journal Article:

Abstract

A fuel supplying method was studied and demonstrated, essential to the high efficient operation of methanol fuel cells. Methanol and water were supplied independently from each tank to an anordic electrolyte tank in a circulating system, detecting a methanol concentration and liquid level of anordic electrolyte by each sensor, respectively. A methanol sensor was also developed to detect accurately the concentration based on electrochemical reaction under a constant voltage. A detection control circuit was insulated from a constant-voltage power supply to prevent external noises. The methanol sensor output was compensated for temperature, and a new level sensing method was adopted to send out a command comparing different responses to electrolyte shortage. As the methanol fuel cell was operated with this fuel supplying system, the stable characteristics of the cell were obtained within the variation of {plus minus} 0.1mol/l from the specified methanol concentration. 6 refs., 17 figs., 1 tab.
Authors:
Tsukui, Tsutomu; Doi, Ryota; Yasukawa, Saburo; Kuroda, Osamu [1] 
  1. Hirachi, Ltd., Tokyo, (Japan)
Publication Date:
Jan 20, 1990
Product Type:
Journal Article
Reference Number:
NEDO-90-910088; EDB-90-108947
Resource Relation:
Journal Name: Denki Gakkai Ronbunshi, B (Transactions of the Institute of Electrical Engineers of Japan); (Japan); Journal Volume: 110:1
Subject:
30 DIRECT ENERGY CONVERSION; ALCOHOL FUEL CELLS; DEMONSTRATION PLANTS; EFFICIENCY; METHANOL FUELS; FUEL FEEDING SYSTEMS; LEVELS; LIQUIDS; QUANTITY RATIO; MONITORS; CORRECTIONS; DISTURBANCES; ELECTROLYSIS; TEMPERATURE DEPENDENCE; ALCOHOL FUELS; DIRECT ENERGY CONVERTERS; ELECTROCHEMICAL CELLS; FLUIDS; FUEL CELLS; FUEL SYSTEMS; FUELS; LYSIS; MEASURING INSTRUMENTS; SYNTHETIC FUELS; 300502* - Fuel Cells- Performance & Testing
OSTI ID:
6763981
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: ISSN 0385-4213; CODEN: DGRBB
Submitting Site:
NEDO
Size:
Pages: 67-76
Announcement Date:
Aug 01, 1990

Journal Article:

Citation Formats

Tsukui, Tsutomu, Doi, Ryota, Yasukawa, Saburo, and Kuroda, Osamu. Study on fuel supplying method and methanol concentration sensor for the high efficient operation of methanol fuel cells. Methanol nenryo denchi no unten ni okeru nenryo kyokyu hoho no kento to methanol nodo sensor no kaihatsu. Japan: N. p., 1990. Web.
Tsukui, Tsutomu, Doi, Ryota, Yasukawa, Saburo, & Kuroda, Osamu. Study on fuel supplying method and methanol concentration sensor for the high efficient operation of methanol fuel cells. Methanol nenryo denchi no unten ni okeru nenryo kyokyu hoho no kento to methanol nodo sensor no kaihatsu. Japan.
Tsukui, Tsutomu, Doi, Ryota, Yasukawa, Saburo, and Kuroda, Osamu. 1990. "Study on fuel supplying method and methanol concentration sensor for the high efficient operation of methanol fuel cells. Methanol nenryo denchi no unten ni okeru nenryo kyokyu hoho no kento to methanol nodo sensor no kaihatsu." Japan.
@misc{etde_6763981,
title = {Study on fuel supplying method and methanol concentration sensor for the high efficient operation of methanol fuel cells. Methanol nenryo denchi no unten ni okeru nenryo kyokyu hoho no kento to methanol nodo sensor no kaihatsu}
author = {Tsukui, Tsutomu, Doi, Ryota, Yasukawa, Saburo, and Kuroda, Osamu}
abstractNote = {A fuel supplying method was studied and demonstrated, essential to the high efficient operation of methanol fuel cells. Methanol and water were supplied independently from each tank to an anordic electrolyte tank in a circulating system, detecting a methanol concentration and liquid level of anordic electrolyte by each sensor, respectively. A methanol sensor was also developed to detect accurately the concentration based on electrochemical reaction under a constant voltage. A detection control circuit was insulated from a constant-voltage power supply to prevent external noises. The methanol sensor output was compensated for temperature, and a new level sensing method was adopted to send out a command comparing different responses to electrolyte shortage. As the methanol fuel cell was operated with this fuel supplying system, the stable characteristics of the cell were obtained within the variation of {plus minus} 0.1mol/l from the specified methanol concentration. 6 refs., 17 figs., 1 tab.}
journal = {Denki Gakkai Ronbunshi, B (Transactions of the Institute of Electrical Engineers of Japan); (Japan)}
volume = {110:1}
journal type = {AC}
place = {Japan}
year = {1990}
month = {Jan}
}