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

doi:10.1016/j.ijhydene.2013.10.021

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

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

6 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 language	English
Pages (from-to)	54-61
Number of pages	8
Journal	International Journal of Hydrogen Energy
Volume	39
Issue number	1
DOIs	https://doi.org/10.1016/j.ijhydene.2013.10.021
Publication status	Published - 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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ijhydene.2013.10.021

Cite this

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

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.",

author = "Jaedeuk Park and Cho, {Jae Hyun} and Heon Jung and Jung, {Kwang Deog} and Il Moon",

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 .",

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AU - Jung, Heon

AU - Jung, Kwang Deog

AU - Moon, Il

N1 - 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 .

PY - 2014/1/2

Y1 - 2014/1/2

N2 - 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.

AB - 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

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

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