A5101640634- Heat Transfer Mechanisms
- Fluid Dynamics and Turbulent Flows
- Heat Transfer and Optimization
- Solar Thermal and Photovoltaic Systems
- Nanofluid Flow and Heat Transfer
- Phase-change materials and chalcogenides
- Glass properties and applications
- Heat Transfer and Boiling Studies
- Wind and Air Flow Studies
- Phase Change Materials Research
- Erosion and Abrasive Machining
- Solid-state spectroscopy and crystallography
- Wind Turbine Control Systems
- Forest Biomass Utilization and Management
- Combustion and flame dynamics
- Innovative Energy Harvesting Technologies
- Vibration and Dynamic Analysis
- Thermal Radiation and Cooling Technologies
- Plasma and Flow Control in Aerodynamics
- Electric Vehicles and Infrastructure
- CNS Lymphoma Diagnosis and Treatment
- Advanced Thermoelectric Materials and Devices
- Drug-Induced Ocular Toxicity
- Electric Motor Design and Analysis
- Bioenergy crop production and management
National Institute of Technology Hamirpur
2022-2025
Delft University of Technology
2017
Nuclear Research and Consultancy Group
2017
National Institute of Technology Kurukshetra
2007
Indian Institute of Technology Bombay
2003-2004
Himachal Pradesh University
1991
Ganesh Shankar Vidyarthi Memorial Medical College
1983
fThe traditional solar air heater (SAH) has poor thermal performance due to low heat transfer coefficient. Artificial roughness, flow passage alteration, absorber modification, etc. can enhance it. Thus, an experimental investigation is performed study the thermohydraulic characteristics of a reverse SAH with perforated and delta wing (DW) structure. The present investigates effect attack angle (15°–75°) at constant streamwise pitch (35 mm), transverse (70 height ( h ), width w ) DW 20 mm,...
ABSTRACTABSTRACTSolar air heaters (SAHs) are one of the most basic forms solar thermal energy conversion devices. In this study, a numerical analysis has been done to investigate thermo-hydraulic characteristics triangular and sinusoidal corrugated absorbers under jet impingement, using CFD code on ANSYS (Fluent) 2022-R1 software. The impingement techniques can boost efficiency SAHs. impact different corrugation depths (d = 3, 4, 5, 6, 7 mm) pitch (P 12.5, 25, 50, 75, 100 thermohydraulic...
Solar Air Heater (SAH) serves as a pivotal device for converting solar radiation into heat applications. This study focuses on enhancing the performance of SAH through modifications to absorber surface by introducing ribs artificial roughness. A two-dimensional CFD analysis investigates impact C-shape, reverse and R-shape thermal hydraulic within channel. RNG (k-ϵ) turbulence model is employed numerical simulation accuracy validated against established correlations literature results. The...
Abstract The roughness geometry has been introduced to improve the rate of heat transfer in a solar air heater duct. In current work, circular and triangular shape geometries are used as elements rectangular channel enhance thermal performance reversed flow (RFSAH). important parameters selected for research Reynolds number (Re = 5000–18,000 (5 values)), pitch ratio (P/e 4–12 height (e/D 0.0392–0.1571 (4 values)). A 2D-computational fluid dynamics (CFD) model was developed using ansys...
Solar Air Heaters (SAHs) are widely used to harness solar energy for various heating applications. Recent research aims improve the ability capture maximum irradiation, addressing weather-dependent and intermittent nature of availability. The incorporation Phase Change Materials (PCMs) in SAHs can capacity absorb irradiation due their high latent storage capacity. However, conventional PCMs often exhibit low thermal conductivity. Various enhancement techniques conductivity pure enhance...
Abstract The present study investigated the performance of dual function reverse flow solar collector (RFSC). impact mass rate air and water on outlet temperature, thermal performance, overall dual‐function heater (SAH) has also been investigated. An experimental investigation three different working models namely, Model‐A: SAH, Model‐B: (SWH), Model‐C: integrated air‐water (SAWH) for heating applications was performed to analyze actual these models. time intervals inlet temperatures at...
†Turbulent mixing enhancement of two co-axial jets having a low annular to core area ratio is studied using fiber-optic LDV system. Mixing with finds application in the chamber bypass turbofan engines used military aircraft. A chute mixer geometry was employed enhance jets. Experiments, at velocity 1.8, which close typical value real engine, were conducted probably biggest facility this kind study effect injecting part stream 10 o towards region on turbulent process. Contours mean and...
Abstract The thermal performance of heat exchangers can be improved by increasing the rate transfer. Heat transmission and fluid flow characteristics have been in this experimental study adopting a dual-side serrated insert tape with triangular wings. Different geometrical parameters such as wing pitch ratio (P/W), width (w/W), depth (d/W), serration (x/W), perforation index (PI) are considered. work is performed various configurations direction forward backward without alternate axis using...
In the field of wind energy, doubly fed induction generator (DFIG) is commonly used in variable speed energy conversion systems (WECS). This paper presents a review various topologies, configurations, power converters and control schemes with operation DFIG. The DFIG based on both slip ring brushless arrangement has been discussed. grid integration its influence system stability, reliability, quality transmission reviewed.