Water ion interactions within nanoconfinement
Water ion interactions within nanoconfinement
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Ion Water interaction within nanoconfinement is crucial for applications like water desalination, DNA hybridization, nanoparticle characterisation, and biomedical applications.
Ion water dynamics are influenced by various parameters like nanopore dimensions, ion concentrations, external electric field, and nanopore surface properties.
Here, we attempt to delve deeper into the dynamics of ion-water interaction under the effect of the external electric field where the surface properties of the nanopore are varied.
Nanoporous membranes are widely used in water desalination, filtration, energy conversion devices, batteries, and biomedical devices.
Ion water interaction may have non-trivial flow characteristics.
Applications: Drug delivery systems, Water desalination, ion current rectification (ICR), ion current polarisation (ICP), micro-nanofluidic devices etc.
The physical and chemical characteristics of the surface within nanoconfinement may have dynamic effects on the flow outcomes and water ion interaction within the system.
Future technologies manipulating these properties externally can take part in the evolution of today's devices.
Micro and Minichannel Heat Sinks
Experiments on cooling a heating system using minichannel heat sinks.
CFD simulation validated with experimental observations are used to calculate different properties and outcomes that can not be obtained from the experiments.
The Experiments are performed with varying mass flow and heat flux.
Hydrovoltaic energy generation
Energy generation from moisture
Droplet-based energy generation
PSSA membrane-based energy generation
Al2O3 and CB (Carbon Black) based nanoporous membranes for transpiration-driven energy generation.
Investigating droplet impact phenomena
Droplet impacting microstructured surfaces.
Applications: Solar cell cleaning, anti-icing, anti-fouling surfaces.
Wenzel to Cassie-Baxter state of wetting can be obsrved depending upon various factors.
Applications: Droplet based energy generation (DEG) , water management etc.
Thermal Management of Devices
Microelectronic cooling using microchannel heat transfer devices has become essential due to the highly concentrated heat transfer in microelectronics and the effectiveness of the microchannel heat sink due to the large surface-to-volume ratio.
The nanofluid has been proven to be an efficient coolant due to its elevated heat transfer properties.
The nanoparticle inclusion may result in rheological changes that seek attention.
Additionally, base fluids with non-Newtonian rheology are being tested largely for enhanced thermal performance.
This work focuses on all these issues and is aimed at understanding the thermal and rheological behaviour in a bifurcated microchannel heat transfer device.
Droplets interacting with natural surfaces
The surface irregularities present on the surface are often overlooked in theoretical analysis. On the contrary, bio-inspired microstructured surfaces are becoming popular for water harvesting and droplet directional transport etc.
Jet into Transverse Flows
The dispersed phase entering into a transverse flow field can involve a wide variety of flow dynamics and consequent flow regimes.
These flow dynamics play a significant role in a wide variety of applications namely spray, aomisation, cooling, cleaning, and water management in PEM fuel cells.
We aim to understand the influence of the interplay of surface property like wettability and bulk charcteristics like confinement dimension and flow velocity on the flow dynamics.
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