Publications by authors named "Likhan Das"
Article Synopsis
- The study investigates how changing the porosity of twisted tape inserts (TTI) affects various heat transfer metrics in heat exchangers, specifically within a Reynolds number range from 5000 to 12500.
- High porosity TTIs were found to lower temperature differences, boost fluid velocities, and significantly enhance heat transfer coefficients compared to lower porosity options and plain tubes.
- The results suggest that utilizing high porosity TTIs can improve energy efficiency and system performance in industrial applications, achieving over 6.44% better performance than low porosity TTIs and an impressive 62.5% increase over typical TTIs.
MXene-based nanofluids are novel trends with improved dispersion stability and thermophysical characteristics over previously established nanofluids. In the present work, the thermohydraulic characteristics of a double pipe heat exchanger (DPHEX) with a Therminol55(TH55)/MXene + AlO nanofluid and various geometrically shaped (triangular, rectangular) ribbed twisted tape (TT) inserts are numerically investigated using the ANSYS Fluent interface. A counter flow arrangement with three different types of inserts (RRTT, TRTT, TT) and TH55/MXene + AlO nanofluid at 0.
View Article and Find Full Text PDFNanofluids are identified as advanced working fluids in the solar energy conversion field with superior heat transfer characteristics. This research work introduces carbon-based diamond nanomaterial and Therminol55 oil-based nanofluids for implementation in a concentrated photovoltaic/thermal (CPV/T) solar collector. This study focuses on the experimental formulation, characterization of properties, and performance evaluation of the nanofluid-based CPV/T system.
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- The study reviews advancements in deep eutectic solvents (DESs) as effective inhibitors for controlling swelling in hydraulic fracturing of shale reservoirs, comparing them to traditional inhibitors.
- It analyzes factors such as concentration, temperature, and different types of DESs, along with their impacts on various properties like rheology, surface tension, and particle size distribution.
- The study concludes that DESs are advantageous for swelling inhibition due to their performance, cost-effectiveness, and environmental benefits, and offers guidelines for their optimal selection and design.
The current research focuses on formulating a new class of Therminol55-based nanofluids that incorporates an MXene/AlO nanocomposite as the new class of dispersant at three different concentrations of 0.05, 0.10, and 0.
View Article and Find Full Text PDFIn recent years, solar energy technologies have developed an emerging edge. The incessant research to develop a power source alternative to fossil fuel because of its scarcity and detrimental effects on the environment is the main driving force. In addition, nanofluids have gained immense interest as superior heat transfer fluid in solar technologies for the last decades.
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