Activation energy and exothermic catalytic-chemical reaction for fluctuating heat and mass performance using Maxwell nanofluid, entropy optimization and solar radiation

作者：Zia Ullah, Mohammed Alkinidri · 发表于：Case Studies in Thermal Engineering · 年份：2025 · DOI：10.1016/j.csite.2025.106577 · 被引用次数：14 · 研究领域：Nanofluid Flow and Heat Transfer、Solar Thermal and Photovoltaic Systems、Advanced Thermodynamics and Statistical Mechanics

This analysis signifies the Maxwell nanofluid aspects for remarkable improvement of heat flux and oscillatory motion of thermophoretic diffusion along solar thermal collector plate using exothermically chemical attraction and energy/heat activation effects. For the cooling and heating efficiency of solar thermal collector plate, the effects of entropy generation and thermal radiation are applied under free/forced convection. For notable outcomes of temperature and concentration change, the appropriate mathematical model is investigated and converted to unit-free form by applying dimensionless constraints. To satisfy the boundary values and stability in oscillating amplitude, the appropriate primitive and Stokes variables of fluctuating flow rate are used. The numerical outcomes of velocity amplitude, temperature amplitude, fluctuating nanoparticle motion, streamlines, isotherms, steady flow rate, and periodical thermal-concentration change are conducted. Using the effects of radiation ( ), exothermic reaction ( ), activation energy ( ), Eckert number ( ), and Maxwell number ( ), the steady and oscillatory results are explored. It is depicted that notable amplitude in velocity and temperature field is detected on behalf of great percentage of exothermically reaction. The magnitude of streamlines and isotherms is enhanced for high value of exothermically reactions and radiating energy. The measurement efficiency of temperature and concentration change increases to 26% and 30% f...