Normally closed electrostatic microvalve with pressure balance mechanism for portable fuel cell application

Kazushi Yoshida; Shuji Tanaka; Yosuke Hagihara; Shigeaki Tomonari; Masayoshi Esashi

doi:10.1016/j.sna.2009.11.030

Normally closed electrostatic microvalve with pressure balance mechanism for portable fuel cell application

Kazushi Yoshida, Shuji Tanaka, Yosuke Hagihara, Shigeaki Tomonari, Masayoshi Esashi

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

This paper describes the fabrication and evaluation of an electrostatic microvalve to control the concentration of methanol in direct methanol fuel cell (DMFC) systems. The microvalve uses a novel pressure balance mechanism to realize normally closed operation against pressurized fuel, and maintained close state up to an input pressure of 40 kPa as designed. The driving voltage ranged from 50 V to 110 V depending on the input pressure. The measured results were compared with simulation results, and showed fair agreement with simulation results. Finally, the developed microvalve was applied to a prototyped portable DMFC system, and stable electric generation was demonstrated. Crown

Original language	English
Pages (from-to)	290-298
Number of pages	9
Journal	Sensors and Actuators, A: Physical
Volume	157
Issue number	2
DOIs	https://doi.org/10.1016/j.sna.2009.11.030
Publication status	Published - 2010 Feb
Externally published	Yes

Keywords

Electrostatic actuator
Fuel cell
Microvalve

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering

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10.1016/j.sna.2009.11.030

Cite this

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title = "Normally closed electrostatic microvalve with pressure balance mechanism for portable fuel cell application",

abstract = "This paper describes the fabrication and evaluation of an electrostatic microvalve to control the concentration of methanol in direct methanol fuel cell (DMFC) systems. The microvalve uses a novel pressure balance mechanism to realize normally closed operation against pressurized fuel, and maintained close state up to an input pressure of 40 kPa as designed. The driving voltage ranged from 50 V to 110 V depending on the input pressure. The measured results were compared with simulation results, and showed fair agreement with simulation results. Finally, the developed microvalve was applied to a prototyped portable DMFC system, and stable electric generation was demonstrated. Crown",

keywords = "Electrostatic actuator, Fuel cell, Microvalve",

author = "Kazushi Yoshida and Shuji Tanaka and Yosuke Hagihara and Shigeaki Tomonari and Masayoshi Esashi",

note = "Funding Information: This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) of Japan. Copyright: Copyright 2010 Elsevier B.V., All rights reserved.",

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doi = "10.1016/j.sna.2009.11.030",

language = "English",

volume = "157",

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TY - JOUR

T1 - Normally closed electrostatic microvalve with pressure balance mechanism for portable fuel cell application

AU - Yoshida, Kazushi

AU - Tanaka, Shuji

AU - Hagihara, Yosuke

AU - Tomonari, Shigeaki

AU - Esashi, Masayoshi

PY - 2010/2

Y1 - 2010/2

N2 - This paper describes the fabrication and evaluation of an electrostatic microvalve to control the concentration of methanol in direct methanol fuel cell (DMFC) systems. The microvalve uses a novel pressure balance mechanism to realize normally closed operation against pressurized fuel, and maintained close state up to an input pressure of 40 kPa as designed. The driving voltage ranged from 50 V to 110 V depending on the input pressure. The measured results were compared with simulation results, and showed fair agreement with simulation results. Finally, the developed microvalve was applied to a prototyped portable DMFC system, and stable electric generation was demonstrated. Crown

AB - This paper describes the fabrication and evaluation of an electrostatic microvalve to control the concentration of methanol in direct methanol fuel cell (DMFC) systems. The microvalve uses a novel pressure balance mechanism to realize normally closed operation against pressurized fuel, and maintained close state up to an input pressure of 40 kPa as designed. The driving voltage ranged from 50 V to 110 V depending on the input pressure. The measured results were compared with simulation results, and showed fair agreement with simulation results. Finally, the developed microvalve was applied to a prototyped portable DMFC system, and stable electric generation was demonstrated. Crown

KW - Electrostatic actuator

KW - Fuel cell

KW - Microvalve

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JO - Sensors and Actuators A: Physical

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Normally closed electrostatic microvalve with pressure balance mechanism for portable fuel cell application

Abstract

Keywords

ASJC Scopus subject areas

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