A5101490731- Thermochemical Biomass Conversion Processes
- Heat Transfer Mechanisms
- Biodiesel Production and Applications
- Advanced Combustion Engine Technologies
- Nanofluid Flow and Heat Transfer
- Fluid Dynamics and Turbulent Flows
- Coal Combustion and Slurry Processing
- Lubricants and Their Additives
- Heat Transfer and Optimization
- Anaerobic Digestion and Biogas Production
- Heat transfer and supercritical fluids
- Aerodynamics and Acoustics in Jet Flows
- Spacecraft and Cryogenic Technologies
- Forest Biomass Utilization and Management
- Advanced Battery Technologies Research
- Hydraulic flow and structures
- Traffic control and management
- Aerodynamics and Fluid Dynamics Research
- Hybrid Renewable Energy Systems
- Advanced Thermodynamic Systems and Engines
- Rheology and Fluid Dynamics Studies
- Additive Manufacturing Materials and Processes
- Energy and Environment Impacts
- Environmental and Industrial Safety
- Electric Vehicles and Infrastructure
Jadavpur University
2013-2024
The University of Texas at El Paso
2024
Khulna University of Engineering and Technology
2023
National Institute Of Technology Silchar
2009
Indian Institute of Technology Kharagpur
2005
International Centre for Integrated Mountain Development
1986
Analysis of natural convection with heating source protruding from the nonheated lower surface a rectangular enclosure has been performed using experimental apparatus two-dimensional particle image velocimetry system. Results obtained experiments are used to validate numerical simulations. Extensive simulation is carried out in-house code based on finite-volume method and SIMPLE algorithm. Heat transfer entropy generation estimated numerically for heater different perimeters aspect ratios,...
A model of a downdraft gasifier has been developed based on chemical equilibrium in the pyro-oxidation zone and finite rate kinetic-controlled reactions reduction zone. The char reactivity factor (CRF) zone, representing number active sites its degree burn out, optimized by comparing predictions against experimental results from literature. agree well with temperature distribution exit gas composition obtained experiments at CRF=100. detailed parametric study performed different equivalence...
The rapidly growing energy demand across the globe and emission problem can be compensated by biodiesel blends. These promising renewable fuels developed from vegetable feedstock. influences of blend (B10) derived inedible oil were explored on combustion as well performance along with parameters at different percentage loading conditions in a normally aspirated liquid cooled, single-cylinder, direct-injection compression ignition (CI) engine. A combined method acid catalyst esterification...
This work investigates natural convection in an enclosure with localized heating on the bottom wall a flushed or protruded heat source and cooled top side walls. Velocity field measurements are done by using 2D particle image velocimetry (PIV) technique. Proper orthogonal decomposition (POD) has been used to create low dimensional approximations of system for predicting flow structures. The POD-based analysis reveals modal structure also allows reconstruction velocity at conditions other...
Abstract Laser Powder Bed Fusion (L-PBF) is a renowned additive manufacturing technique, celebrated for its capability to construct intricate metal components with remarkable precision. However, one of the main challenges L-PBF formation complex microstructures, which can significantly impact final material properties. To address this issue, our study proposes physics-guided and machine-learning-aided approach optimize scan paths achieving desired microstructure outcomes, such as generation...
Thermodynamic model of the pulse tube refrigeration (PTR) system has been developed based on ideal gas behaviour to study cooling effect at cold end refrigerator. Compression and expansion processes column have assumed be isothermal. Mass flow in regenerator evaluated through Ergun's law. orifice double inlet valve a nozzle with correction factor. Model predicted results validated in-house experimental as qualitative basis. compression are also that data. presented understand basic...
An extensive investigation has been carried out to study the trajectory and other hydrodynamic aspects of non-confined submerged laminar buoyant jet issuing from inclined circular nozzle into isothermal ambient medium. Brine solution different densities fresh water have used as experimental fluids flow diagnosis performed using Particle Image Velocimetry (PIV) shadow graphy technique. The results are considered in terms basic physical mechanisms which govern characteristics. Based on...
An extensive measurement using 2-D Particle Image Velocimetry (PIV) technique has been carried out during natural convection with a heating sources protruded on the non-heated lower surface of rectangular enclosure. A time-resolved data series have captured to analyse effect different Rayleigh number flow fields for fluid Prandtl 0.71. fast and efficient analysis tool based Proper Orthogonal Decomposition (POD) used create low dimensional approximations high systems predicting dominant...
Abstract In this article, investigation and analysis of an experiment for downdraft biomass gasification has been conducted using two different feed stocks namely tree waste sawdust pellet at equivalence ratio. The gas yield due to mainly hydrogen, carbon monoxide, methane, dioxide nitrogen have observed by the use online analyser. ratio air varied from 0.3 0.4 both feedstock. On basis producer yield, LHV also calculated biomass. After that compared between feedstock ratios 0.3, 0.33 0.4....
Compression ignition, single zone biodiesel engine model has been established based on geometries (stroke, cylinder diameter, connecting rod length and diameter of crank). Deviation in specific heat ratio charge burned gases to anticipate the pressure fluctuation relative crank angle, output mean effective relevant for Palm Oil Methyl Ester (POME) biodiesel. Predicted verified using diesel POME blended (B5 B10). In order find out performance results combustion nature, constant speed (1500...
As a consequence of research on developing speedy transportation system, Hyperloop is one the best solutions now as smaller resistant forces are developed capsule body compared to conventional ground systems due movement in vacuum and no contact with ground. In this study, an elliptical-shaped head semicircular-shaped rear was chosen for analysis. Aerodynamic drags were calculated at different evacuated tunnel pressures. The computational regime 360 meters long tunnel. inlet outlet pressure...