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 journalArticle

3 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

Fingerprint

exergy
Exergy
hydrogen production
sulfuric acid
Hydrogen production
Iodine
Sulfuric acid
iodine
sulfur
Sulfur
Decomposition
decomposition
cycles
simulation
Atmospheric temperature
atmospheric temperature
Temperature
destruction
temperature
energy

All Science Journal Classification (ASJC) codes

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

Cite this

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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.",
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Exergy analysis of a simulation of the sulfuric acid decomposition process of the SI cycle for nuclear hydrogen production. / Park, Jaedeuk; Cho, Jae Hyun; Jung, Heon; Jung, Kwang Deog; Moon, il.

In: International Journal of Hydrogen Energy, Vol. 39, No. 1, 02.01.2014, p. 54-61.

Research output: Contribution to journalArticle

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AU - Moon, il

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