http://172.22.28.37:8080/xmlui/handle/1/388 2026-03-23T09:14:57Z 2026-03-23T09:14:57Z SONAR SHANKAR DATTATRYAYA http://172.22.28.37:8080/xmlui/handle/123456789/1787 2025-11-15T10:33:59Z 2025-01-01T00:00:00Z

Title: Experimental and Numerical Analysis for Thermal Management Innovations of Ultra-Fast Charging Authors: SONAR SHANKAR DATTATRYAYA

2025-01-01T00:00:00Z Prashant Rajesh Dhongade http://172.22.28.37:8080/xmlui/handle/123456789/1786 2025-11-15T10:31:48Z 2025-01-01T00:00:00Z

Title: Numerical Analysis and Optimization of Shell-and-Tube Heat Exchangers Using CFD: A Comparative Study with Traditional Correlation-Based Methods Authors: Prashant Rajesh Dhongade Abstract: This thesis presents a comprehensive performance evaluation of a shell-and-tube heat exchanger using analytical methods—Kern and Bell-Delaware correlations—and Computational Fluid Dynamics (CFD). The study investigates the influence of mass flow rate and number of baffles on heat transfer characteristics and pressure drop. Results show that increasing the mass flow rate from 0.5 to 2.0 kg/s significantly enhances the heat transfer coefficient due to increased turbulence, but also results in higher pressure losses. Among the analytical methods, the Kern method consistently underestimated both heat transfer and pressure drop, particularly at higher flow rates and baffle counts, with deviations exceeding 50% compared to CFD. The Bell- Delaware method demonstrated better agreement with CFD, as it accounts for shell- side effects such as bypassing and leakage; however, it still underpredicted pressure drops under high-resistance flow conditions. Description: Under the Supervision of Prof. S. V. Kadam

2025-01-01T00:00:00Z Pawar, Yuvraj Gahininath http://172.22.28.37:8080/xmlui/handle/1/487 2018-11-12T11:23:04Z 2017-01-01T00:00:00Z

Title: Static and Dynamic analysis of Structural Systems of a Launcher System Authors: Pawar, Yuvraj Gahininath Abstract: The main objective of following research work is to carry out the finite element analysis of of structural sub-systems of Launcher system. The objective of this analysis is to check the entire launcher structural assembly for adequacy in strength and rigidity under various operating conditions. The Transporter, Articulator cum Launcher (TASL) System has been designed and configured to perform the role of Transportation, Emplacement, Articulation and Launching of article in a cold launch mode from a stationary vertical firing position. The Launcher assembly includes Launch-beam, Trailer, article, actuators, outriggers and other accessories. . The geometric modeling and meshing of the assembly is done in ANSYS software. Detailed analysis using FEA technique and ANSYS software has been carried out with a view to optimize it from weight considerations without sacrificing the strength and stiffness as well as ensuring adequate factor of safety and safety Margins. Static analysis of Launcher structure has been carried out for different loading cases while encountering different conditions such as braking, cornering, encountering any ditch or bump. Modal analysis has been carried to find out the mode shapes and natural frequencies of the system. Transient analysis has been carried out to find the settling time of the Launcher. Description: Under the Supervision of Prof A.M Mulla & Mr. KautilyaJha

2017-01-01T00:00:00Z Dhongade, Rohit Laxman http://172.22.28.37:8080/xmlui/handle/1/486 2018-11-12T11:18:42Z 2017-01-01T00:00:00Z

Title: Design, Analysis and Manufacturing of pump body casting Authors: Dhongade, Rohit Laxman Abstract: Pattern making is primary stage in the manufacturing of any casting. Here the dissertation work is carried out for pump body casting of PSP Pump Pvt. Ltd., Kolhapur. CAD modeling is used to observe the core complexities for the pump body pattern. Improper pattern and core design may increase complexity in mold and may affect the casting also. So these can be easily visualized by CAD software before manufacturing. Manufacturing of this pattern is to be done with the CAM software. While finishing of metal pattern the key issues arises in surface finish and depth of cut. So these can be solved by CAM software. Gating system design is done for the pump body casting in order to get defect free components. As far as the casting of pump casing is concerned, finding the hotspot is very important, as most of the casting defects occur at the hotspot. Hotspot is the part of casting that gets solidified last. To avoid improper solidification of the casting the simulation software’s such as AutoCAST-X1 is used. Hotspot is observed by AutoCAST software and the feeder location is to be selected to avoid hotspot in the casting. The cooling curves are observed for the proper solidification of the casting. Description: Dr. Sachin K. Patil Guide

2017-01-01T00:00:00Z