Exergy analysis of a simulation of the sulfuric acid decomposition process of the SI cycle for nuclear hydrogen production

Jaedeuk Park, Jae Hyun Cho, Heon Jung, Kwang Deog Jung, Il Moon

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

This article details comprehensive energy and exergy analyses of the sulfuric acid decomposition process of the sulfur-iodine (SI) thermochemical cycle for hydrogen production. Energy and exergy efficiencies of the proposed process were evaluated over a variety of reaction temperatures and pressures. At an atmospheric temperature of 25 °C, the calculated values of exergy destruction of the H2SO4 decomposer ranged between 157 kJ/mol and 360 kJ/mol over reaction temperatures of 800-1000 °C and pressures between 1 and 50 atm. It was shown that the exergy efficiency of the H2SO4 decomposer improved with an increase in reaction temperature, while reaction pressure had a negative effect on exergy efficiency.

Original languageEnglish
Pages (from-to)54-61
Number of pages8
JournalInternational Journal of Hydrogen Energy
Volume39
Issue number1
DOIs
Publication statusPublished - 2014 Jan 2

Bibliographical note

Funding Information:
J.P. and J.H.C. contributed equally to this work. This study was supported in part by the Ministry of Education of Korea by the BK21 program at Yonsei University, and the Nuclear Research & Development Program funded by the Ministry of Education, Science and Technology of Korea .

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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