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Hydrodynamics in stirred vessels is vital for transport phenomena for various applications in chemical and environmental systems like aerobic and anaerobic systems, effluent treatment and biological applications like bioreactors. Design of efficient impellers reduces power consumption which contributes to reduction in greenhouse gases especially power obtained from thermal power plants thus decreasing the carbon footprint. In the present work, Computational Fluid Dynamics (CFD) simulations have been carried out for two different Rushton turbines (one axial and one radial flow) for two different height to diameter (H/T) ratio. The model is first validated for a Pitched Blade Turbine Downflow (PBTD) impeller with data available in the literature. A qualitative study of the flow patterns in stirred tanks shows good axial and radial flow profiles for the respective impellers. A decrease in H/T showed higher power consumption for both impellers. The power number (Np) for these impellers has also been calculated for two H/T ratio and Reynolds number (Re) in the range (2500 < Re < 1000. Np was found to be a strong function of liquid level for both impellers considered in the study. Interesting trends of variation of Np with Re have been observed which suggest there is a critical Re where the impellers have least power consum

Flexible and stretchable supercapacitors developed on MXene‐enabled Titanium Carbide (TiC) impurities‐based electrodes with novel electrolytes are the point of focus in this work. Five different electrodes are prepared with different TiC content and symmetric supercapacitors are fabricated with three electrolytes named acrylamide, N,N′‐Dimethylacrylamide, and 2‐Hydroxyethyl methacrylate to achieve flexibility and improved energy storage. Before electrode fabrication, all the samples are tested with the X‐ray Diffraction technique. Cyclic voltammetry is performed at a potential window from −1 to 1 V to evaluate the specific capacitance of fabricated supercapacitors at multiple scan rates. Electrochemical impedance spectroscopy is performed to study the Randles circuit, and Rs values are calculated to examine the maximum physical area used for the evaluation of supercapacitors. Open‐circuit and short‐circuit tests are performed after charging the capacitor at 1 V for 2 min each time and compatibility of electrodes with different electrolytes is analyzed. The figures of merits for all the techniques used are discussed in detail. The highest values of the specific capacitances reported in our work are 50 and 79 F/g with novel electrolytes termed as N,N′‐Dimethylacrylamide and 2‐Hydroxyethyl methacrylate, respectively. [ABSTRACT FROM AUTHOR]