http://localhost:8081/jspui/handle/123456789/3 Sat, 17 Oct 2026 03:34:03 GMT 2026-10-17T03:34:03Z http://localhost:8081/jspui/handle/123456789/21211 Title: Drain Pollution Modelling and Validation Using Different Software Authors: Kumar, Vivek Abstract: River water quality models are used extensively in research as well as in the design and assessment of water quality management measures. The application of mathematical models for that purpose dates back to the initial studies of oxygen depletion due to organic waste pollution. Since then models have been constantly refined and updated to meet new and emerging problems of surface water pollution such as eutrophication, acute and chronic toxicity etc. Modelling of the oxygen-sag model with the help of Streeter Phelps equation are used to demonstrate the potential benefits of the application of user-friendly numerical software packages in environmental engineering education and practice. The simulation is used to obtain the profiles of oxygen concentration, oxygen deficit, as well as de-oxygenation and re oxygenation rates as a function of distance for a steady state drain velocity. Simulations are carried out for using previously published results. It is shown that the solution profiles obtained by numerical simulation demonstrate the processes involved more than the point values provided by an analytical solution. Due to the many benefits of modelling and simulation, we can envision rapid spread of the use of simulation in environmental, chemical and biotechnology engineering education and practice. In the current research two different software POLYMATH6.10 and MATLAB, 2019 Ra has been used for the same data and compared to check the feasibility, flexibility and accuracy for the same model but different software. Tue, 01 Jun 2021 00:00:00 GMT http://localhost:8081/jspui/handle/123456789/21211 2021-06-01T00:00:00Z http://localhost:8081/jspui/handle/123456789/21210 Title: Simulation of Underground Coal Gasification Authors: Mahawar, Viplav Abstract: The underground coal gasification is a process which we extract use products from the coal bed without actually mining the coal.Two wells are drilled in the bed one is to inject air into the bed while the other is to extract the product formed inside.Combustion is occurred inside with the help of incombustible (Oxygen and air) send via first well.The second well is used to extract product formed by combustion of coal inside (mainly carbon monoxide) which can further be used to form snygas. We know that syngas is a key component of the polymer industry. Also electric plants can be attached to UCG to produce electricity with the gases coming out of the UCG plant. Tue, 01 Jun 2021 00:00:00 GMT http://localhost:8081/jspui/handle/123456789/21210 2021-06-01T00:00:00Z http://localhost:8081/jspui/handle/123456789/21209 Title: Comparative Study of Removal of Arsenic and Fluoride from Groundwater: LCA Approach Authors: Gupta, Vipin Abstract: This present study deals with the comparative study of arsenic and fluoride removal from groundwater by metal oxides i.e Iron Oxide and Aluminium Oxide by Adsorption process. Life Cycle Assessment is done for both the adsorbent and Environmental impacts are compared. Arsenic and Fluoride content in Groundwater for this study is considered on the basis of various studies which illustrate the content of Arsenic and Fluoride in Groundwater in South-East Asian Countries. Management of Waste Adsorbent is done by making bricks. No pretreatment of Groundwater is considered. Tue, 01 Jun 2021 00:00:00 GMT http://localhost:8081/jspui/handle/123456789/21209 2021-06-01T00:00:00Z http://localhost:8081/jspui/handle/123456789/21208 Title: MONTE-CARLO SIMULATION FOR SEI-BASED AGEING OF LI-ION BATTERIES Authors: Khange, Subham Abstract: Since the development of lithium-ion batteries, there is a rapid rise in production because of their excellent performance, which is due to their high energy density, and lower self- discharge rate as compared to other cell chemistries like NiCd. Lithium-ion batteries were initially installed in electronic devices such as laptops, computer and mobile phones but now the gear has been updated as lithium-ion batteries have entered the automotive industry. With the decrease in the cost of lithium-ion batteries from the past few years, the world is now truly accepting electrics vehicles. The recent interest in electric vehicles powered with lithium ion batteries has promoted in-depth battery ageing characterization and predictions. In this present work, different battery degradation mechanism on anode and cathode are separately discussed. As this topic has become popular in research communities, different methods for battery ageing studies are being discussed, ranging from the black box type approach coming from the electrical engineers to the physics-based methods mainly brought by the chemical engineers. In the first section, basic battery components are discussed along with different battery ageing mechanism. The second section consists of a literature review a different paper on ageing on li-ion battery. The next section discusses the problem statement of the work i.e., Monte Carlo simulation of a mathematical model including the effect of SEI layer formation where the model is simulated with varied parameters whose values are generated randomly from the population. After this, we have discussed the solution methodology in which various steps that are involved in modelling and simulation are discussed. In the next chapter various result are discussed based on sensitivity analysis. Finally, the varied parameters are ranked according to their sensitivity towards battery capacity in the last section. Tue, 01 Jun 2021 00:00:00 GMT http://localhost:8081/jspui/handle/123456789/21208 2021-06-01T00:00:00Z