A5101798111- Heat Transfer and Optimization
- Heat Transfer and Boiling Studies
- Surface Modification and Superhydrophobicity
- Fluid Dynamics and Heat Transfer
- Icing and De-icing Technologies
- Additive Manufacturing Materials and Processes
- Thermal Radiation and Cooling Technologies
- High Entropy Alloys Studies
- Refrigeration and Air Conditioning Technologies
- Phase Equilibria and Thermodynamics
- Spacecraft and Cryogenic Technologies
- Advanced ceramic materials synthesis
- Electrohydrodynamics and Fluid Dynamics
- High-Temperature Coating Behaviors
- Laser Material Processing Techniques
- Atmospheric aerosols and clouds
- Advanced Thermodynamic Systems and Engines
- Fire dynamics and safety research
- Adsorption and Cooling Systems
- Wind and Air Flow Studies
- Nuclear Engineering Thermal-Hydraulics
- Aluminum Alloys Composites Properties
- Advanced materials and composites
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
Birla Institute of Technology and Science, Pilani
2025
Indian Institute of Technology Gandhinagar
2024
Jadavpur University
2018-2024
Lehigh University
2023-2024
Abstract In hot climates, subcooling or after-cooling is an effective method to enhance the coefficient of performance (COP) CO 2 transcritical refrigeration system. This study investigates improvement two contemporary arrangements: Integrated mechanical (IMS) and dedicated (DMS) evaporative cooling arrangement gascooler by introduction gravity-fed evaporator in a dual parallel compression system suitable for milk processing. Using location-specific average meteorological data, proposed...
We introduce a scalable thermally activated solvent extraction based additive manufacturing process to produce lightweight, yet high-hardness, multicomponent alloys. The cost-effective involves layer-wise curing slurry composed of AlCoCrFeNi high-entropy alloy powder and transparent ultraviolet-sensitive photopolymer, by stereolithography 3D printing followed sintering. pellets assume density 4.3 g/cm3 hardness 400 HV with BCC/FCC multiphase microstructure. A broad distribution in the...
Condensation is a ubiquitous phenomenon which depends on several factors, ranging from the degree of subcooling to relative humidity condensing environment. Characterizing condensation in experimental setups, therefore, requires proper control strategy operating parameters. Although industrial vapor chambers are available for carrying out experiments under precisely controlled environments, these setups prohibitively expensive. Here we have developed low-cost, prototype chamber that equipped...
Abstract The process involving heat and mass transfer during filmwise condensation (FWC) in the presence of noncondensable gases (NCG) has great significance a large variety engineering applications. Traditionally, is expressed literature as function degree subcooling—reckoned difference between ambient dry bulb temperature condenser wall temperature. However, NCG, there exists finite gradient vapor fraction near plate, which directly influences flux to surface, thus limiting rate. effects...
The initial transient behavior of condensation water vapor from humid air plays vital roles in a large variety engineering applications. Although such influences on the steady-state attributes dropwise and filmwise condensations have been widely investigated literature, description their behaviors is rather limited. Herein we characterized regimes under varying NCG fractions condenser plates four different wettability. Results experiments provide droplet size distribution condensing surface,...
The complex solidification cycles experienced by multi-principal element alloys (MPEAs) during laser-based additive manufacturing (LBAM) often lead to structural defects that affect the build quality. underlying thermal processes and phase transformations are a function of process parameters employed. With moving Gaussian heat source mimic LBAM leveraging material thermodynamics guidelines from CALculation PHAse Diagrams (CALPHAD), we estimate temperature-dependent properties, fractions,...