Volume 6 | Issue 1 |

 Abstract

This Paper deals with the conversion of Plastic Wastes into alternative fuels. Waste Plastic from municipal solid waste were collected and were sorted based on their types like PET bottles, Polypropylene, Polystyrene, HDPE and LDPE. These Plastic wastes are graded and shredded and then heated in a closed chamber (Similar to a process called Pyrolysis) to attain temperatures up to 150-2000C. The Plastic waste is melted and gases produced at this temperature are condensed to liquid state. Both, Condensed and Uncondensed gases can be used as fuel to engines. The Fuel produced is tested for Viscosity and Calorific Value, and is compared with Gasoline and Diesel Fuel and the results Obtained are tabulated.

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 Keywords

Plastic wastes, Alternative Fuel, Polystyrene, Pyrolysis, Thermal Cracking and Calorific Value

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 Abstract

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Turbocharger, thermal stresses and thermo-mechanical fatigue life

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In this paper, analysis is carried on extended surfaces, which are commonly used to enhance convection heat transfer in a wide range of engineering applications. The conception of introducing perforations on the lateral surface of fin is to enhance heat transfer rate effectively. This analysis helps in deciding the optimal geometry and configuration of perforations on the surface of the fin. Finely perforated aluminum (k=210W/mK), copper (k=410W/mK) fins are selected for investigation because both has higher thermal conductivities and are predominantly used in heat transfer applications.

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 Keywords

Heat transfer, heat transfer coefficient, temperature, fins, and perforations

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: A colloidal mixture of Nano fluid particles in a base fluid is called Nano fluid which is a new generation of Heat transfer fluid for various heat transfer applications. This paper analyses and summarizes the various factors affecting Nano-fluid thermal performance such as particle size, fluid type, temperature, volume concentration, PH, particle shape and the latest developments regarding the mechanisms that influences the enhancement of Heat transfer by using Nano fluids.

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 Keywords

Nano fluid, Thermal conductivity, Brownian motion

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In this paper, isolated Diesel generator set is integrated with static synchronous compensator (DSTATCOM) for harmonics elimination, reactive power compensation and injection of active power. The control of scheme of DSTATCOM is derived from instantaneous reactive power theory. The dc bus voltage is regulated to constant value with proportional integral (PI) controller of DSTATCOM. The controlling pulses DSTATCOM is carried out with hysteresis controller. The overall system consisting of DG set, DSTATCOM and nonlinear load simulation is carried out with MATLAB environment using Simulink and power system block-set toolboxes. The MATLAB modeling is performed for a synchronous generator coupled to a diesel engine, along with the three-leg VSC working as a PV-DSTATCOM. The simulated responses of PV-DSTATCOM with DG set are presented to verify the effectiveness of the control of PV-DSTATCOM for the compensation harmonics, reactive power and active injection without separate DSTATCOM.

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 Keywords

DSTATCOM, MPPT,harmonics, reactive power.

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This paper deals with the design and implementation of variable hysteresis band voltage controller based dynamic voltage restorer (DVR). The aim of variable hysteresis band voltage controller is overcomes the major drawbacks in fixed hysteresis band voltage controller i.e., uneven stress on switches due to large ripples in filter currents and variation in switching frequency can be eliminated by using variable hysteresis band control scheme. The performance of the variable hysteresis band voltage controller based DVR depends on the values of system parameters and components and injects appropriate compensated voltages into the system and regulates the load voltages. The DVR is to mitigate all typical voltage related problems at the distribution system load center like voltage sag, voltage swell, voltage harmonics and interruptions etc. The compensation capability of this proposed topology is analyzed based on simulation studies and corresponding results are compared with different switching control strategies

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 Keywords

Power Quality (PQ), Fixed Hysteresis Band Controller (FHBC), Variable hysteresis band Controller (VHBC), Dynamic Voltage Restorer (DVR)

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 Abstract

The five level inverter is most widely used inverter in medium and high voltage applications, since it has many advantages and easy to develop when compared to higher level(7 or 9) inverters. There are several modulation techniques and most popular among them is Sinusoidal Pulse Width Modulation.(SPWM). There are different Sinusoidal Pulse width Modulation techniques such as In Phase Disposition(IPD), Anti Phase Disposition(APD), Phase Opposition Disposition(POD), Phase shift(PS), Anti-Phase Shift(APS), Variable Frequency(VF), Anti-Variable Frequency(AVF) and Carrier Overlap(CO)The THD of different Sinusoidal Pulse width Modulation techniques are found as carrier frequency is varied and compared .

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 Keywords

five level inverter, modulation technique, pulse width modulation, phase disposition, phase shift, variable frequency.

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 Abstract

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Simulation, Photovoltaic, MATLAB/SIMULINK

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Three phase Induction motors especially multiphase motor drives has proved to be much efficient for high power drives application such as Electric vehicles/Hybrid Electric vehicles. In this paper a simulated Electric Vehicle (EV) with four-wheel-drive with Electronic Differential System (EDS) is presented. The Electric Vehicle (EV) is controlled with five phase induction motor and the EDS distributes torque and power to each in-wheel motor according to the requirements, adapts the speed of motor to the driving conditions and simulates the behavior of a differential. The working conditions including the condition of the vehicle with the constant speed, accelerating and decelerating are studied , and the control strategy of the EDS for the vehicle with four in-wheel motors is designed and simulated. The simulation with Matlab/Simulink is made and the results are verified with the rationality of the EDS controller, and proved that the system has more favorable dynamic performance.

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 Keywords

Eletric Vehicle, Electronic Differential System

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 Abstract

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 Keywords

Teachers learning based optimization (TLBO),Valve-point loading effects,non-convex optimization.

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