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- Heat Exchanger Performance Analysis Research
Non-dominated sorting genetic algorithm (NSGA-II) is implemented in Python to attain a set of multiple optimum solutions called ‘Pareto optimal solutions’ stating the maximum effectiveness and the minimum total cost and a detailed mechanical design is also achieved using TEMA specification.
Design and Comparative Parametric Analysis Using NSGA-II for Multivariable Constrained Optimization of Shell and Tube Heat Exchangers
- Supercapacitor Research
To examine the performance of the nanocomposite experimentally, Cyclic Voltammetry and Galvanostatic Charging Discharging experiment (Chronopotentiometry) have been performed at several scan rates and several current densities, respectively. Our computational study suggests an improved design of rGO-MnO2 nanocomposite electrode by adding nano slit-pore in a particular way which can be called ‘nano slit-pore’ model.
Electrode Surface Modification of Graphene-MnO2 Supercapacitors using Molecular Dynamics Simulations
- Earth Pipe Cooling System Research
This study focused on the optimization of the shape and pattern of the inlet which might improve the efficiency of the cooling system. ‘ANSYS Fluent’ is used to perform this simulation-based study. It is found that inclusion of aerofoil shaped turbulator in the inlet cross sectional area provide better circulation of the air inside the cooling space, thus, enhance the effectiveness of the system.
- Fire Safety Research
According to the ASHRAE standard, safe level of CO is 9 ppm for prolonged exposure. According to Occupational Safety and Health Administration (OSHA) maximum exposure of CO for 8 hours working day is 35 ppm. Death can occur within 2-3 hours with a concentration of 800 ppm and within 2-3 minutes for 12800 ppm. But in our study peak CO concentration is more than 60000 ppm. The simulation by which we get 60000 ppm had been carried out from fire of stack of polyester jacket storage units with a maximum input heat release rate per unit area (HRRPUA) of 1500kw/m2 over a 50m2 area. It indicates that how severe real situation is. Because in real garment and textile industry can have cloth stocks larger than 50 m2. So preventive measures is must to save life of people as we know smoke is more dangerous than the fire itself. In most of the fire incidents people were killed due to inhalation of smoke. Our study shows the propagation behavior of CO smoke and different ways to reduce the propagation.