Effects of CuO/Al2O3/Water-WO3 nanomaterials on NETZERO energy/emission-based hydrogen generation

• Published in: Fuel (Guildford) 2023-07, Vol.343, p.127938, Article 127938
• Main Authors: Sathish, T., Saravanan, R., Vijay Muni, T., Sivasankar, G.A., Prem Kumar, J., Rajasimman, M., Vasseghian, Yasser, Park, Y.-K.
• Format: Article
• Language: English
• Subjects: Exergy; Hydrogen Generation; Nanomaterials; Parabolic Through Collector; Rankine cycle; Solid Oxide Electrolyzer Cell
• ISSN: 0016-2361; 1873-7153
• DOI: 10.1016/j.fuel.2023.127938

[Display omitted] •Net Zero Emission /Energy utilized for Hydrogen Generation with PTC and Nanofluids.•Neglected viscosity changes by 0.02 wt% concentration of CuO, Al2O3, and Water-WO3.•High thermal efficiency recorded by CuO Nanofluid as 79% and Exergy was 7.2%.•Net power output of the absorber system is 897 KW with CuO Nanofluid.•Average rate of hydrogen generation is roughly 0.031 kg/s with CuO Nanofluid.•By using Al2O3 & WO3 Nanofluids achieved were 72% & 68% respectively. Net Zero Emission/Energy can be utilized by using solar energy in parabolic through collector (PTC), having an effective design process and the good option of adjustable operating settings are both extremely important factors. The Ranking cycle is used to produce hydrogen. In this comparative study, the power output and hydrogen generation of a parabolic trough solar collector integrated independently with a Rankine cycle and an electrolyzer are examined. Within the scope of this investigation, hydrogen was generated by employing a Solid Oxide Electrolyzer Cell (SOEC) with three distinct nanofluids being introduced to the base fluid. In this experiment, the nanomaterials of CuO, Al2O3, and WO3 were utilized to prepare nanofluids with a low concentration of 0.02 wt% with water (Base fluid). Because of this, the absorber containing CuO nanomaterials has a thermal efficiency of approximately 79% and an exergy efficiency of approximately 7.2%. When compared to absorbers containing other nanomaterials, the one with CuO nanomaterials demonstrated the highest thermal efficiency for heat gain. The thermal efficiencies of utilizing Al2O3 and Water-WO3 nanomaterials were approximately 72% and 68%, respectively and the exergy efficiency was about 6.8% and 6.1% respectively. Because of this, the absorber containing the CuO nanomaterials improved the hydrogen generation and rate of transfer of heat.