Design and control method for compact BOP of direct methanol fuel cell

Y. S. Chang, C. Cho, Yong Chan Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have developed an electro-chemical model of a DMFC (Direct methanol fuel cell) stack to analyze its performance. The model includes methanol solution at the anode to "cross over" to the cathode through MEA (membrane electrode assembly), which reduces the system efficiency and increases fuel consumption. BOP (Balance of plants) system - condenser, cooler, and methanol solution tank - was modeled. Dynamic simulation was performed to evaluate and develop a control algorithm of the fuel cell system for an efficient operation of DMFC We simulated the effects of the varying total UA (overall heat transfer coefficient), and proposed minimum UA of the condenser and cooler. When the volume of the methanol solution tank decreases below a certain level, ON/OFF based control algorithm leads to an unstable fuel cell operation. By adopting PID based control algorithm, the system has better controllability of methanol concentration and power generation in response to load change under the same methanol solution tank volume.

Original languageEnglish
Title of host publicationECS Transactions
Pages1519-1524
Number of pages6
Volume16
Edition2 PART 2
DOIs
Publication statusPublished - 2008
EventProton Exchange Membrane Fuel Cells 8, PEMFC - 214th ECS Meeting - Honolulu, HI, United States
Duration: 2008 Oct 122008 Oct 17

Other

OtherProton Exchange Membrane Fuel Cells 8, PEMFC - 214th ECS Meeting
CountryUnited States
CityHonolulu, HI
Period08/10/1208/10/17

Fingerprint

Direct methanol fuel cells (DMFC)
Methanol
Fuel cells
Controllability
Fuel consumption
Heat transfer coefficients
Power generation
Anodes
Cathodes
Membranes
Electrodes
Computer simulation

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Chang, Y. S., Cho, C., & Kim, Y. C. (2008). Design and control method for compact BOP of direct methanol fuel cell. In ECS Transactions (2 PART 2 ed., Vol. 16, pp. 1519-1524) https://doi.org/10.1149/1.2981992

Design and control method for compact BOP of direct methanol fuel cell. / Chang, Y. S.; Cho, C.; Kim, Yong Chan.

ECS Transactions. Vol. 16 2 PART 2. ed. 2008. p. 1519-1524.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chang, YS, Cho, C & Kim, YC 2008, Design and control method for compact BOP of direct methanol fuel cell. in ECS Transactions. 2 PART 2 edn, vol. 16, pp. 1519-1524, Proton Exchange Membrane Fuel Cells 8, PEMFC - 214th ECS Meeting, Honolulu, HI, United States, 08/10/12. https://doi.org/10.1149/1.2981992
Chang YS, Cho C, Kim YC. Design and control method for compact BOP of direct methanol fuel cell. In ECS Transactions. 2 PART 2 ed. Vol. 16. 2008. p. 1519-1524 https://doi.org/10.1149/1.2981992
Chang, Y. S. ; Cho, C. ; Kim, Yong Chan. / Design and control method for compact BOP of direct methanol fuel cell. ECS Transactions. Vol. 16 2 PART 2. ed. 2008. pp. 1519-1524
@inproceedings{e13ec3a97e274570b0143fa646acf34a,
title = "Design and control method for compact BOP of direct methanol fuel cell",
abstract = "We have developed an electro-chemical model of a DMFC (Direct methanol fuel cell) stack to analyze its performance. The model includes methanol solution at the anode to {"}cross over{"} to the cathode through MEA (membrane electrode assembly), which reduces the system efficiency and increases fuel consumption. BOP (Balance of plants) system - condenser, cooler, and methanol solution tank - was modeled. Dynamic simulation was performed to evaluate and develop a control algorithm of the fuel cell system for an efficient operation of DMFC We simulated the effects of the varying total UA (overall heat transfer coefficient), and proposed minimum UA of the condenser and cooler. When the volume of the methanol solution tank decreases below a certain level, ON/OFF based control algorithm leads to an unstable fuel cell operation. By adopting PID based control algorithm, the system has better controllability of methanol concentration and power generation in response to load change under the same methanol solution tank volume.",
author = "Chang, {Y. S.} and C. Cho and Kim, {Yong Chan}",
year = "2008",
doi = "10.1149/1.2981992",
language = "English",
isbn = "9781566776486",
volume = "16",
pages = "1519--1524",
booktitle = "ECS Transactions",
edition = "2 PART 2",

}

TY - GEN

T1 - Design and control method for compact BOP of direct methanol fuel cell

AU - Chang, Y. S.

AU - Cho, C.

AU - Kim, Yong Chan

PY - 2008

Y1 - 2008

N2 - We have developed an electro-chemical model of a DMFC (Direct methanol fuel cell) stack to analyze its performance. The model includes methanol solution at the anode to "cross over" to the cathode through MEA (membrane electrode assembly), which reduces the system efficiency and increases fuel consumption. BOP (Balance of plants) system - condenser, cooler, and methanol solution tank - was modeled. Dynamic simulation was performed to evaluate and develop a control algorithm of the fuel cell system for an efficient operation of DMFC We simulated the effects of the varying total UA (overall heat transfer coefficient), and proposed minimum UA of the condenser and cooler. When the volume of the methanol solution tank decreases below a certain level, ON/OFF based control algorithm leads to an unstable fuel cell operation. By adopting PID based control algorithm, the system has better controllability of methanol concentration and power generation in response to load change under the same methanol solution tank volume.

AB - We have developed an electro-chemical model of a DMFC (Direct methanol fuel cell) stack to analyze its performance. The model includes methanol solution at the anode to "cross over" to the cathode through MEA (membrane electrode assembly), which reduces the system efficiency and increases fuel consumption. BOP (Balance of plants) system - condenser, cooler, and methanol solution tank - was modeled. Dynamic simulation was performed to evaluate and develop a control algorithm of the fuel cell system for an efficient operation of DMFC We simulated the effects of the varying total UA (overall heat transfer coefficient), and proposed minimum UA of the condenser and cooler. When the volume of the methanol solution tank decreases below a certain level, ON/OFF based control algorithm leads to an unstable fuel cell operation. By adopting PID based control algorithm, the system has better controllability of methanol concentration and power generation in response to load change under the same methanol solution tank volume.

UR - http://www.scopus.com/inward/record.url?scp=63149179128&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=63149179128&partnerID=8YFLogxK

U2 - 10.1149/1.2981992

DO - 10.1149/1.2981992

M3 - Conference contribution

AN - SCOPUS:63149179128

SN - 9781566776486

VL - 16

SP - 1519

EP - 1524

BT - ECS Transactions

ER -