Division of Mechanical Sciences: Recent submissions
Now showing items 181-200 of 2294
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Oxidation of ortho-xylene
The thesis embodies the work on the vapour?phase oxidation of o-xylene over sintered and compacted vanadium pentoxide catalyst in a fixed?bed reactor (FBR) and a continuous stirred?tank catalytic reactor (CSTCR). A survey ... -
Chemical process deveoopment for sodium dithionite- a kinetic study of sodium formate process
(1) The kinetics of formation of sodium dithionite has been investigated in homogeneous aqueous phase. The rate of hydrolysis of sodium formate has been found to be the rate?controlling step. The following rate equation ... -
Studies in drop formation
An exhaustive survey of literature has indicated that no investigation has been carried out on drop formation in non?Newtonian fluids. Further, it is noted that little attention has been paid to the problem of drop formation ... -
Investigations on gas-liquid ejectors
A gas–liquid ejector offers relatively higher interfacial area and can be seriously considered as a cocurrent gas–liquid contactor. A model has been proposed, which assumes the contactor comprises a series of stirred vessels ... -
studies on thermal decomposition of calcium carbonate /calcium hydroxide for energy storage
Alternate energy sources are essential to meet the present?day energy demands. Non?conventional energy resources may substitute for natural sources to some extent and they alleviate discomfortable thoughts about the impending ... -
Dynamics of gas bubbles in liquids
The study of bubble formation in liquids is of great importance because of its application in the design of many industrial bubble contactors like distillation columns, bubble cap columns, absorption towers, reactors, extraction ... -
Enzymatic synthesis of esters in supercritical fluids
Lipases are enzymes that are widely used to catalyze a variety of industrially important reactions. However, lipase?catalyzed reactions are heterogeneous and mass?transfer limited. Therefore, in most cases the reaction ... -
Structure and Rheology of Lyotropic Liquid Crystals
The aim of the present work is to probe the structure and rheology of the various lyotropic liquid crystalline substances. For this purpose, a commercial rheometer is used for studying the rheology of the substance and a ... -
Experimental studies on swirling flows at vertically upward intakes
The experimental investigations presented in this thesis are concerned with the aspects of sump geometry and sump parameters, which govern the flow conditions at vertically upward intakes. Detailed studies are made to ... -
Flow characteristics of sharp-edged orifices,quadrant-edged orifices and nozzles
This thesis presents an integrated study of flow past sharp-edged orifices, quadrant-edged orifices and long radius nozzles, covering different aspects such as metering characteristics, loss characteristics and flow ... -
Studies on erosion due to liquid jet impingement
The problem of erosion due to liquid jet impingement and cavitation is gaining importance with the rapid technological progress in the recent years. The possible uses of liquid jets in the mixing processes in chemical ... -
On The Theory of burning of monopropellant droplets
This thesis is concerned with theoretical investigations on some aspects of monopropellant droplet combustion. The burning characteristics have been obtained by solving the governing differential equations which are ... -
Some experimental investigations of the fine scale structure of turbulence
In this thesis some properties of the fine scale structure have been investigated experimentally. The terminology “fine scale structure” means, in the author's opinion, small eddies which are different from energy?containing ... -
Nonequilibrium wake flows
In order to study the memory of the larger eddies in turbulent shear flow, experiments have been conducted on plane turbulent wakes subjected to external pressure gradients. In some of these experiments the pressure gradient ... -
Overcoming Processing Constraints in Organic Electronics: Crosslinking Strategies and Ultra-Thin Film Integration
The evolution of modern electronics has been dominated by Si-based technologies for many years, as they have enabled reliable, powerful, and compact devices. While the silicon-based technologies are powerful, they face ... -
Design of Structures and Mechanisms using Topological Derivatives and Exploration of 4D-printed Shape Morphing Structures
We employ topological derivatives to design supports for stiff structures and compliant mechanisms along with exploration of design features for 4D-printed shape-morphing structures. Topological derivative (TD) has been ... -
Data-Driven Prediction of Concrete Behaviour and Performance Enhancement Through CO₂ Inclusion Techniques
Concrete remains the most widely used construction material globally, valued for its versatility, strength, and durability. However, the conventional approach to concrete mix design, governed by empirical codal provisions ... -
Coupled vibro-acoustics of an unbaffled plate
In this work, that falls largely in the realm of applied mathematics, we consider a fluid-loaded finite simply-supported rectangular unbaffled plate with the following objectives: a) to derive a closed form mathematical ... -
Unified Effort Measure for Natural Posturing of Digital Humans
Digital Human Models (DHMs) are extensively used in industrial ergonomic simulations to predict, understand, and analyse human behavior. However, most existing DHMs are built upon principles developed for robotic manipulators, ...