Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

VIT Unitversity

Department of Automotive Engineering

School of Mechanical Engineering

Vellore Campus

International Journal of Engineering Trends and Technology

Optimization of Eye End Design of a Single Leaf Spring

Department of Manufacturing Engineering

Fulltext

Procedia Engineering

Optimization of Makespan in Job and Machine Priority Environment

IOSR Journal of Mechanical and Civil Engineering

Finite Element Analysis of Universal Joint

International Journal of Applied Information Systems

Analyzing a few Heuristic Algorithms Considering Machine Idle Time and Processing Time in Permutation Flow Shop Scheduling Problems

Advanced Science Letters

A Simple Model to Obtain More Than One Sequence Having Optimal/Near Optimal Make Span Using Dummy Machines

2013 International Conference on Energy Efficient Technologies for Sustainability

Experimental investigation of oxygen enrichment on performance of twin cylinder diesel engine with variation of injection pressure

In recent years, many researches are being carried out on the integration of solar thermal systems with solar photovoltaic modules in many countries for heat generation along with electricity generation. The electrical energy generated by the solar PV modules is utilized for the operation of fan. The hybrid solar photovoltaic - Thermal (PV/T) technology provides an opportunity to enhance the electrical and thermal performances. This paper deals with analysis of various parameters which affect the electrical and thermal performances of different types of hybrid solar photovoltaic - Thermal (PV/T) air heating systems. These systems deliver more useful energy per unit area of the heater than that of individual solar PV and solar thermal systems and can be used for preheating the air for many applications such as drying of agricultural products, space heating and industrial process heating. The performance comparisons among the various models reveal that the model III in which the air flows above and below the absorber plate is most suitable for converting the solar energy into high quality electrical energy and low quality heat energy.

Department of Thermal and Energy Engineering

Advanced Materials Research

A Review of Mathematical Models for Performance Analysis of Hybrid Solar Photovoltaic - Thermal (PV/T) Air Heating Systems

With the constant hike in fuel prices on a day to day basis, maximum performance with minimum compromise on the front of fuel economy and emissions is highly desirable and expected from a vehicle's drivetrain. In this context, a drivetrain comprising a Continuously Variable Transmission (CVT) plays the role to the best extent possible. CVT facilitates a continuous change in gear ratios between the driver and the driven shaft. CVTs are superior to automatic transmissions with a fixed number of gear ratios in that it offers greater acceleration and more efficient fuel economy. In this paper, we propose to model a drivetrain of a vehicle comprising CVT. A detailed mathematical model based on the geometry of the components has been formulated and also, equations of their respective motions representing their behaviour have been derived. Furthermore, a dynamic model of a drivetrain, using bond graph method, is prepared which captures the behaviour of the CVT during the transient shift ratio condition and the complete simulation is implemented in MATLAB Simulink. The results substantiate the effect of mass of flyweights and spring constant of torsion springs on the performance of CVT.

World University root node

International Journal of Engineering and Technology

Simulation of a drivetrain of a vehicle comprising continuously variable transmission

Structural analysis of multiplate clutch

Analysis of a Drive Shaft for Automobile Applications

Material Optimization and Weight Reduction of Drive Shaft Using Composite Material

Due to the pressure in a shop floor to complete a set of jobs within due date, all the materials are to be processed within a minimum possible time. This is linked to the problem of finding an optimal sequence in terms of total completion time (Make Span) for processing ‘n’ jobs in ‘m’ processing centers in the shop floor. The problem is NP hard as the total number of sequences is (n!) for a permutation flow shop scheduling problem. In the shop floor, due to the limitation in the computing capabilities and computer knowledge, still the Classical heuristics are popular because of their simplicity. However, in most of the cases, we get only one sequence except in CDS algorithm where the best sequence is selected from (m-1) alternatives. This paper deals with optimization of total material processing time in a manufacturing flow shop using the concept of Dummy Machine in one Heuristics proposed by the authors, based on the Pascal’s triangle. In such cases, more sequences having make spans which may be optimal/ near optimal can be obtained. This results in optimization of total material processing time and enables the shop floor supervisor to complete the jobs within a minimum possible time.

Optimization of Total Material Processing Time in a Manufacturing Flow Shop Environment

A Simple Model to Optimize General Flow-Shop Scheduling Problems With Known Break Down Time And Weights Of Jobs

Lecture Notes in Mechanical Engineering Emerging Trends in Science, Engineering and Technology

Effect of Dummy Machines in the Gupta’s Heuristics for Permutation Flow Shop Problems

Improvement of fuel properties is essential for the suppression of diesel pollutant emissions along with the optimization of combustion-related design factors and exhaust after-treatment equipment. Studies conducted in the past have shown that a significant reduction of pollutants using oxygenates as alcohols, ethers, glycol ethers, methylals and carbonates. The present paper experimentally investigates the influence of oxygenated diesel fuels on the emissions with the use of two different synthetic oxygenated compounds namely Diphenyl ether (DPE) and Diethelene glycol dimethyl ether (DIGLYME). Several diesel fuel blends, which contain 10% and 15% by volume of DPE and DIGLYME, were prepared and the effect of these blends on emission characteristics were studied on a twin cylinder direct injection diesel engine. The blends were tested under the different load conditions and the results shows, there is significant reduction of engine emissions of hydrocarbon and carbon mono oxide emissions while the coefficient of light absorption of smoke opacimeter decreases by about 50% for DPE10, DIGLYME10 blend and it was reduced by about 60%for DPE15 and DIGLYME15 blend. © 2006-2011 Asian Research Publishing Network (ARPN).

ARPN Journal of Engineering and Applied Sciences

The effect of two oxygenates on diesel engine emissions

Air pollution is fast becoming a serious global problem with increasing population and its subsequent demands. This has resulted in increased usage of hydrogen as fuel for internal combustion engines. Hydrogen resources are vast and it is considered as one of the most promising fuel for automotive sector. As the required hydrogen infrastructure and refueling stations are not meeting the demand, widespread introduction of hydrogen vehicles is not possible in the near future. One of the solutions for this hurdle is to blend hydrogen with methane. Such types of blends take benefit of the unique combustion properties of hydrogen and at the same time reduce the demand for pure hydrogen. Enriching natural gas with hydrogen could be a potential alternative to common hydrocarbon fuels for internal combustion engine applications. Many researchers are working on this for the last few years and the work is now focused on how to use this kind of fuel to its maximum extent. This technical note is an assessment of hydrogen enriched compressed natural gas usage in case of internal combustion engines. Several examples and their salient features have been discussed. Finally, overall effects of hydrogen addition on an engine fueled with hydrogen enriched compressed natural gas under various conditions are illustrated. In addition, the scope and challenges being faced in this area of research are clearly described.

Mechanical

Chennai Campus

Thermal Science

Hydrogen enriched compressed natural gas - A futuristic fuel for internal combustion engines