Evaluating the influence of Ar/N2 flow rate and pressure on the conversion efficiency of a solar-assisted Fe2O3-FeO WS cycle for hydrogen production: A thermodynamic approach

被引：3

作者：

Sharma, Jeet Prakash ^{[1
,7
]}

Sharma, Ajit ^{[2
,6
]}

Singh, Iqubal ^{[3
]}

Kumari, Yogita ^{[3
]}

Al-Gheethi, Adel Ali ^{[4
,5
]}

机构：

[1] Lovely Profess Univ, Sch Mech Engn, Phagwara 144411, India

[2] Lovely Profess Univ, Sch Chem Engn & Phys Sci, Dept Chem, Phagwara 144411, India

[3] Lovely Profess Univ, Sch Pharmaceut Sci, Phagwara 144411, India

[4] Univ Newcastle, Global Ctr Environm Remediat GCER, Newcastle, Australia

[5] CRC Contaminat Assessment & Remediat Environm CRC, Newcastle, Australia

[6] IAAM, Inst Adv Mat, Gammalkilsvagen 18, S-59053 Ulrika, Sweden

[7] Lovely Profess Univ, Phagwara 144411, India

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2024年 / 52卷

关键词：

H2O splitting; Hydrogen production; Thermodynamic analysis; Solar fuels; SPLITTING THERMOCHEMICAL CYCLES; REDOX CYCLES; PERFORMANCE ANALYSIS; THERMAL REDUCTION; CERIA; CO2; REACTOR; OXYGEN; FUEL; H2O;

D O I：

10.1016/j.ijhydene.2023.11.084

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：

A thermodynamic analysis is carried out to evaluate the effects of oxygen partial pressure (PO2) and molar flow rate of reduction agents (mN2/Ar) on the performance of Fe2O3 -FeO solar thermochemical cycle (STC|Fe2O3-FeO). The chemical equilibrium and efficiency analysis parameters such as enthalpy, Gibbs free energy and entropy are calculated as a function of thermal dissociation temperature (TH). The chemical equilibrium analysis suggests that the thermal dissociation step is feasible above 1250 K while the re-oxidation step is practicable at 550 K. The efficiency analysis revealed that the highest value of conversion efficiency (eta solar-to-fuel) reached up to 44.42% for N2 based cycle and 45.46% for Ar based cycle without using the recuperation technique. However, the conversion efficiency (eta solar-to-fuel) attained the highest value of 57.84% for N2 based cycle and 59.14% for Ar based cycle with 50% heat recuperation.

引用

页码：1291 / 1302

页数：12