Numerical analysis on inlet position and orientation for enhanced thermal performance of a solar thermochemical reactor for two-step WS cycle for hydrogen production
Sharma J.P. Kumar R. Ahmadi M.H. Bekbolatova Z. Sarsenbayev Y. Najser J. Blazek V. Prokop L.
August 2024Springer Science and Business Media B.V.
Journal of Thermal Analysis and Calorimetry
2024#149Issue 158409 - 8429 pp.
This study presents the effect of inert gas flow inlet positioning and orientation on the conversion efficiency of the proposed solar thermochemical reactor for hydrogen production. The nitrogen gas was used as (i) a reducing agent, (ii) a cooling agent to control the porous matrix temperature and (iii) removing oxygen from the STCR chamber. The result of the study demonstrates that the highest average temperature yield of 1570 K occurred at an inlet position of 10 mm with a 75° inclination, while 1665 K was obtained at an inlet position of 10 mm with a 90° inclination. Additionally, a temperature of 1353 K was achieved at an inlet position of 12 mm with a 75° inclination, both radially (for 20 mm thickness) and axially (over 80 mm length) along the centerline of the STCR chamber (extending 125 mm in length). The optimized inlet positioning and orientation provided the improved design of the solar thermochemical reactor (STCR) chamber capable of achieving the uniform solar flux profile and high-temperature distribution in the porous media to successfully carry out the redox reactions and achieve high solar-to-fuel conversion efficiency.
Hydrogen production , Porous media , Solar reactor , Temperature distribution , WS cycle
Text of the article Перейти на текст статьи
School of Mechanical Engineering, Lovely Professional University, Punjab, India
Faculty of Mechanical Engineering, Shahrood University of Technology, Shahrood, Iran
Department of Power Engineering Almaty, Satbayev University, 22a Satpaev Str., Almaty, 050013, Kazakhstan
ENET Centre, VSB—Technical University of Ostrava, Ostrava, 708 00, Czech Republic
School of Mechanical Engineering
Faculty of Mechanical Engineering
Department of Power Engineering Almaty
ENET Centre
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026