A5004750596- Solar Thermal and Photovoltaic Systems
- Lattice Boltzmann Simulation Studies
- Spacecraft and Cryogenic Technologies
- Characterization and Applications of Magnetic Nanoparticles
- Chemical Looping and Thermochemical Processes
- solar cell performance optimization
- Hybrid Renewable Energy Systems
- Heat Transfer and Boiling Studies
- Photovoltaic System Optimization Techniques
- Magnetic confinement fusion research
- Fluid Dynamics and Turbulent Flows
- Advanced optical system design
- Nanofluid Flow and Heat Transfer
- Solar Radiation and Photovoltaics
Indian Institute of Technology Kanpur
2024
Indian Institute of Technology Patna
2019-2021
In this paper, a ray-tracing model is developed using MATLAB based on mathematical formulations used in the design of Fresnel lens with spherical facets. Further, chart for facets to determine aperture radius and angle given focal length focus size. Concentration ratio aberration are also compared those plano-convex conventional triangular Furthermore, present validated SolTrace experimental study conducted prototype fabricated CO2 laser cutting machine. Focal proposed found be same....
Conventional coil designs, such as helical and flat serpentine (FS) coils, are commonly employed for heat transfer applications due to their higher performance compactness. In the last few decades, chaotic designs have attracted attention of a researchers superior thermohydraulic performance. this paper, we present novel simple design termed curved (CS-θ) coil, which is modified version conventional FS coil. The straight tubes length L in bent arcs radius R1 subtended angle θ (i.e., = × θ),...
In the present work, two variants of novel curved serpentine coil formed by relaxing switching angle at junctions are explored and compared with original design for same mean radius Rm concentric tubes. With α as semi-cone θ subtended tubes, general notation given to different is CS-α-θ. The three named a cylindrical (α = 0°), conical (0° < 90°), spiral 90°). fluid experiences 90° − + entrance exit every U-bend, respectively. laminar flow water in CS-α-θ coils (45° ≤ 270°, 0° 90°)...
Abstract This paper describes the design methodology for a novel Fresnel lens. The original lens is obtained from plano-convex lens, whose spherical surface split into number of divisions (called facets), collapsed onto flat base. Thus, all facets have same radius as that proposed aims to achieve better ray concentration and reduced aberration than by constructing with unequal radii. centers radii are constrained so refracted bottom vertex each facet on one side optical axis outer...
Hydrogen energy will be essential in transitioning towards clean and reducing greenhouse emissions. A novel concept of solar tower-based hydrogen generation by direct thermo-catalytic cracking ammonia is proposed to address this vital aspect. The simulator comprises three sub-systems: the volumetric receiver-based heating system, a 2.45 kWe high-concentration radiation source (HCRS), an air-cooling system for HCRS. thermodynamic analysis shows that net solar-to-hydrogen efficiency, first law...
Abstract In the present work, a ray tracing model based on Snell’s law of refraction is developed using MATLAB for design Fresnel lens with spherical facets equal height. practice, facet curvature approximated by straight line, which causes an increase in aberrations and reduction concentration ratio. The proposed takes into consideration, will result effective utilization incident solar radiations. lenses are available having constant width A comparison two cases has also been presented...