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

被引：8

作者：

Park, Jaedeuk ^{[1
]}

Cho, Jae Hyun ^{[1
]}

Jung, Heon ^{[2
]}

Jung, Kwang-Deog ^{[2
]}

Moon, Il ^{[1
]}

机构：

[1] Yonsei Univ, Dept Chem & Biomol Engn, Seoul 120749, South Korea

[2] Korea Inst Sci & Technol, Clean Energy Res Ctr, Seoul, South Korea

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2014年 / 39卷 / 01期

关键词：

Sulfuric acid decomposition; SI cycle; Exergy analysis; Hydrogen production; PRODUCTION STEP; ENERGY; IODINE; EFFICIENCY; ASSESSMENTS; PLANT;

D O I：

10.1016/j.ijhydene.2013.10.021

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 degrees 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 degrees 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. Crown Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：54 / 61

页数：8

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