Effect of depth and diameter of cylindrical cavity in a plate-type methanol steam reformer on estimated net power of PEMFC

Shiang Wuu Perng, Horng-Wen Wu

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The plate-type methanol steam reformer (MSR) designed for improving its reforming performance is integrated with proton exchange membrane fuel cells (PEMFCs) regarded as a hopeful miniature power source. This study then uses computational fluid dynamics (CFD) through SIMPLE-C algorithm and Arrhenius form of reaction model to study the reforming performance of a plate-type MSR with the cylindrical cavities installed on the bottom of reformer channels. The influences of depth and diameter of cavities, and heated-wall temperature on reforming performance of reformer and estimated net power output of PEMFC have been examined with the same catalyst and inlet conditions in various flow channels of plate-type MSR. The results display that the installation of cylindrical cavities obviously improves the methanol conversion rate and hydrogen yield of a plate-type MSR. Compared with the traditional plate-type MSR, installing the cylindrical cavities of DC = 1.4 mm and HC = 1.5 mm on the plate-type MSR channels leads to the best enhancement in the methanol conversion rate by 22.65% and in the hydrogen yield by 64.52% at Theater = 250 °C. Moreover, the novel plate-type MSR with the cylindrical cavities of DC = 1.4 mm and HC = 1.5 mm acquires the best augmentation of 22.46% in the estimated net power output of PEMFC at Theater = 250 °C.

Original languageEnglish
Pages (from-to)190-209
Number of pages20
JournalEnergy Conversion and Management
Volume177
DOIs
Publication statusPublished - 2018 Dec 1

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Proton exchange membrane fuel cells (PEMFC)
Methanol
Steam
Reforming reactions
Theaters
Hydrogen
Channel flow
Computational fluid dynamics
Catalysts

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

Cite this

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title = "Effect of depth and diameter of cylindrical cavity in a plate-type methanol steam reformer on estimated net power of PEMFC",
abstract = "The plate-type methanol steam reformer (MSR) designed for improving its reforming performance is integrated with proton exchange membrane fuel cells (PEMFCs) regarded as a hopeful miniature power source. This study then uses computational fluid dynamics (CFD) through SIMPLE-C algorithm and Arrhenius form of reaction model to study the reforming performance of a plate-type MSR with the cylindrical cavities installed on the bottom of reformer channels. The influences of depth and diameter of cavities, and heated-wall temperature on reforming performance of reformer and estimated net power output of PEMFC have been examined with the same catalyst and inlet conditions in various flow channels of plate-type MSR. The results display that the installation of cylindrical cavities obviously improves the methanol conversion rate and hydrogen yield of a plate-type MSR. Compared with the traditional plate-type MSR, installing the cylindrical cavities of DC = 1.4 mm and HC = 1.5 mm on the plate-type MSR channels leads to the best enhancement in the methanol conversion rate by 22.65{\%} and in the hydrogen yield by 64.52{\%} at Theater = 250 °C. Moreover, the novel plate-type MSR with the cylindrical cavities of DC = 1.4 mm and HC = 1.5 mm acquires the best augmentation of 22.46{\%} in the estimated net power output of PEMFC at Theater = 250 °C.",
author = "Perng, {Shiang Wuu} and Horng-Wen Wu",
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