Engineering essays

ABSTRACT 3 ABBREVIATIONS 5 1. INTRODUCTION 7 1.1 PHOTONIC CRYSTALS 7 1.2 METAMATERIALS 12 1.3 NUMERICAL CALCULATIONS 18 1.4 IMPROVING THE FMM CONVERGENCE 21 1.5 OPTIMIZATION METHODS FOR PHOTONIC PROBLEMS 22 2. FOURIER ANALYSIS FOR MICRO/NANO-STRUCTURES 24 2.1 SPECTRAL CONCEPT 24 2.2 GIBBS PHENOMENON 26 2.3 NUMERICAL APPROACH 29 2.4 MAXWELL EQUATIONS IN RECIPROCAL SPACE … Read more

Control Engineering Prepared by Hxxxx Fxxxx Mxxxxx ‘ Summary The need for power generation from renewable sources is rapidly increasing worldwide because they are more environment-friendly and because fossil fuels reserves are decreasing over time. The potential for renewable energy resources is enormous because they can, in principle, exceed the world’s energy demand in addition … Read more

PROJECT REPORT ON ‘Design and manufacturing of flexible fixture for different frame welding’ Mechanical Engineering Submitted by 1) G Jxxxxxx 2) Z Pxxxxxxxxxxx 3) K Pxxxxx 4) R Nxxxx 1. INTRODUCTION 1.1 Jigs and fixture:- The fixture is a special tool for holding a work piece in proper position during manufacturing operation. For supporting and … Read more

ABSTRACT It is said that third world war will be for water. Water is very precious source for survival of mankind and it cannot be produced. In our daily life we are getting water from the water tank. So cleaning of water tank is very necessary from hygienic point of view. Cleaning of water tank … Read more

3.1 Introduction Chapter three presents an overview of the experimental methodology and materials used in the study reported in this thesis. The first part of the chapter shows the method, the experimental details and a description of the test vehicles used in carrying out the study. The second part describes the innovative materials, equipment and … Read more

LP EGR loop is one of the method to further reduce NOx while maintaining PM Emissions at low level. When variable geometry turbine (VGT) get closed there are chances of higher boost pressure allowing a high rate of supplemental EGR. The study discusses about the influence of boost pressure and injection pressure on combustion which … Read more

Recent developments in the oil industry have led to renewed interest in artificial lift methods such as, electrical submersible pumps (ESP’s), gas lift and sucker-rod pump. When the oil is being extracted from the ground is due to the difference among the reservoir and well-bore pressure by producing naturally or using artificial lift mechanisms. In … Read more

Aeroplanes are one of the main means of transportation in the 21st Century. The main part of the Airplane that enables it to fly is the wings (also known as aerofoil). This essay will examine in great detail about the physical characteristics of the aerofoil and the importance of these parts in enabling the airplane … Read more

Let us discuss the terms: 1. Afflux and 2. Back water curve and Derive an expression for the length of the back water curve. Whenever an obstruction comes across the width of the channel, the water surface in the upstream side of the obstruction no longer remains parallel to the bed but the depth of … Read more

Abstract: The Seismic noise attenuation is very important for seismic data interpretation and analysis. In our paper, we propose a 2D F-X Prediction Design Levinson-Durbin filter mode method for2D seismic land data random noise attenuation by applying Design Levinson-Durbin filter The key idea of this paper is to consider that The FXDecon works on each … Read more

During the process of construction, the slip-forms are raised while the concrete is in a plastic state. These are used for the construction of tall structures, e.g., chimney. Slip-forms may be classified as : (i)Straight slip-forms (ii)Tapering slip-forms (iii)Sand slip-forms for special applications. Straight slip-forms are used for silos, straight-chimneys, water towers, etc. Tapering chimneys … Read more

Types of Casing in Centrifugal Pump: 1) Volute casing. 2) Vortex casing. 3) Casing with Guide Blades. Priming in centrifugal pump: It is the first operation in which the suction pipe casing of the pump and portion of the delivery pipe up to delivery valve are completely filled with liquid so that all the air … Read more

1.1 Problem Summery In packaging industries, flexible packaging and lidding seal materials are manufactured by dry bond lamination process. This dry bond lamination is done by heat seal coating machine. In heat seal coating machine dry bond lamination is achieved by blow of dry hot air, which is provided by gas fired furnace. Aim of … Read more

I Table of contents I Table of contents II II List of figures IV III List of tables VI IV Symbols VII 1 Introduction 8 1.1 Classification according to DIN 8580 9 1.2 Specific energy consumption of manufacturing processes 10 2 Primary Shaping 11 2.1 Liquid initial material state 11 2.1.1 Gravity Die Casting 12 … Read more

Recently used turbines for power generation and aero-jet aircraft engines applications experience incessant efforts towards increasing the thermal efficiency [1]. Greater efficiency and higher output inescapably need to increase the turbine operating temperature, which needs novel methods to overcome the restraints of hot sections materials [2]. Early, before 25 years ago, the increase in the … Read more