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http://dx.doi.org/10.7316/KHNES.2022.33.6.819

A Study on PSA Controll Strategy for Part Load Operation of a Hydrogen Generator  

SANGHO LEE (Department of Mobility Power Research, Korea Institute of Machinery & Materials)
SEONYEOB KIM (Department of Mobility Power Research, Korea Institute of Machinery & Materials)
YOUNG CHOI (Department of Mobility Power Research, Korea Institute of Machinery & Materials)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.33, no.6, 2022 , pp. 819-826 More about this Journal
Abstract
Fuel cell systems are being supplied to households and buildings to reduce greenhouse gases. The fuel cell systems have problems of high cost and slow startup due to fuel processors. Greenhouse gas reduction of the fuel cell systems is also limited by using natural gas. The problems can be solved by using a hydrogen generator consisting of a reformer and pressure swing adsorption (PSA). However, part load operation of the hydrogen generator is required depending on the hydrogen consumption. In this paper, PSA operation strategies are investigated for part load of the hydrogen generator. Adsorption and purge time were changed in the range of part load ratio between from 0.5 to 1.0. As adsorption time increased, hydrogen recovery increased from 29.09% to 48.34% at 0.5 of part load ratio. Hydrogen recovery and hydrogen purity were also improved by increasing adsorption and purge time. However, hydrogen recovery dramatically decreased to 35.01% at 0.5 of part load ratio.
Keywords
Hydrogen generator; Methane steam reformer; Pressure swing adsorption; Part load; Fuel cell;
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Times Cited By KSCI : 1  (Citation Analysis)
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