Research Papers/Topics in Mechanical Engineering

Energy and Exergy Analysis of Boiler Systems

ABSTRACT  In this work, the results of the analysis of the NBC boiler plant using energetic and exergetic methods are presented. The main aim of this study is to investigate the effects of boiler rotary burner cup speed, oil nozzle size, excess air and fuel types on its performance and emissions with a view to identifying and quantifying components having greatest losses of energy and exergy efficiencies. Optimization of the boiler operating system is also carried out. The specific objective...

Exergetic Efficiency of Passive Solar Air Heater with Phase Change Energy Storage Material

ABSTRACT  Energy and exergy analysis of solar air heater with phase change material energy storage is considered in this research work. Energy and exergy models for component systems like flat plate solar collector and phase change material in one-dimensional heat conduction in a cylindrical pipe, for storing periods were obtained. Exergy analysis, which is based on the second law of thermodynamics, and energy analysis, which is based on first law, was applied to improve system efficiency. M...

Fracture Mechanics of Glass Fibre Reinforced Polyester Composites (Gfrp) Subjected to Impact Load

ABSTRACT Glass mat reinforcement, which can be easily shattered, is widely used across the world in military, automobile, civil, railway and electronic engineering among others. This research investigated the fracture mechanics of reinforced polyester composites on exposure to sudden impact force, using experimental and analytical methods based on impact and Linear Elastic Fracture Mechanics (LEFM) test procedures, to study the stress distribution around crack tip and zone. Plies of randomly...

Use of Finite Time Thermodynamic Simulation of Performance of an Otto Cycle with Variable Specific Heats of Working Fluid

Abstract  A finite time thermodynamic modelling and simulation of irreversible Otto cycle engines has been developed taking into account the variability of specific heats for working fluid due to temperature variation. The effect of three different parameters on the engine was discussed, which are: the internal irreversibility, the heat losses and the friction losses. A program was developed by using MATLAB software to perform the necessary calculations of thermodynamic model. According to t...

Effect of Delay Period on Performance of Compression Engine Running on Jatropha Fuel

Abstract Jatropha Biodiesel was tested in a single cylinder direct-injection, water cooled diesel engine to investigate the operational parameters of a small capacity diesel engine under five engine loads, constant speed test. The jatropha oil is used as a non edible oil to produce the biodiesel. The investigated blends were B0, B25, B50, B75 and B100, where (B#) denotes bio-diesel fuel volume percentage in diesel oil. The jatropha biodiesel was prepared locally in Sudan, specifications of wh...

Design and Construction of a Machine for the Production of Pulverized Coal-Rice Husk Briquettes

ABSTRACT The first part was the design and construction of a machine model using wood and the second part w pulverized coal-rice husk briquettes. The dt find the different loads due to shear stress on varlous parts or the nlachlne as the materials flow during consolidation. The loads obtained were used to dimension gears, shafts and pulleys that form the power transmission system of the machine. The machine was then drawn to produce a detail dimensional model in software form using AutoCAD. A...

Optimum Buckling Response Model of Grp Composites

ABSTRACT Relevant literature for the modeling and analysis of failure of GRP composites were reviewed. Samples of GRP composites were prepared by hand-lay up. Composites samples were subjected to compressive tests using a tensometer. Mechanical characteristics, such as modulus of elasticity; compressive strength, proportionality limit, elastic limit and critical strain of composites were evaluated from compression tests results. It was found that the compressive strength of all the samples is...

Improvement of the Performance of Thermal Power Systems Through Energy and Exergy Analysis

ABSTRACT This research work is aimed at using the energy and exergy analysis with thermodynamic data to suggest improvements in the performance of steam and gas turbine power plants. In this regard, specific data from Egbin steam power plant and Geregu I gas turbine power plant were used for the analysis. In the analysis, scientific tools such as Engineering Equation Solver (EES) programme with built-in functions for most thermodynamic and transport properties was used to calculate the enthal...

Experimental Performance Evaluation of Charcoal-Stove

ABSTRACT An experimental evaluation of the performance of a charcoal stove designed to reduce human labour and health hazards associated with frying in open fire was carried out. The channel- type metallic stove was lagged with 2.54 mm thick glass wool. The charcoal grate is 160 mm from the floor and has 44 holes of 12 mm diameter each to serve as air holes and provide passage for ashes, drilled in it. The charcoal bed is 230 mm from the bottom of the pot and the channel gap is 8mm. A 300 mm ...

Machine learning techniques for quality control in manufacturing environment

v> In the present exceptionally serious worldwide market, winning expects close wonderful quality. Albeit most mature associations work their cycles at exceptionally low imperfections per million open doors, clients expect totally deformity free goad ucts. Thus, the brief location of interesting quality occasions has turned into an issue of fundamental significance and a chance for assembling organizations to push quality norms ahead. This article presents the educational experience ...

Artificial Intelligence in Aero Industry

AI has as of late tracked down numerous applications in aviation and remote detecting. These applications range from predisposition rectification to recovery calculations, from code speed increase to identification of illness in crops. As a wide subfield of computerized reasoning, AI is worried about calculations and methods that permit PCs to "learn". The significant focal point of AI is to extricate data from information consequently by computational and measurable techniques. Over th...

Controlling Induction Motor Using Variable Speed Drive With Supervisory Control And Data Acquisition

Abstract Three phase induction motors are mostly used in industry for various operations. In this thesis the Variable Frequency Derive control the speed of 3-phase induction motor based on programmable logic controller and supervisory control and data acquisition technology. An implementation of a hardware and software for speed control, direction control, parameter monitoring on supervisory control and data acquisition screen is also provided. tank filling ,bottle filling and capping system ...

IMPLEMENTATION OF REAL TIME, INFORMATION MANAGEMENT FOR INSTITUTE OF TECHNOLOGY (I.O.T)

ABSTRACTThis project work focuses on the creation of a website and e-portal for the institute of Technology in order to enhance communication and improve the educational system of Kwara State Polytechnic. A website is a collection of web pages, images, video and other digital assets that hosted on one or several web server, usually accessible via the internet, cell phone or a LAN. The pages of website can usually be accessed from a common root URL called the homepage, and usually be resi...

DESIGN AND FABRICATION OF A PORTABLE CASSAVA GRATER

ABSTRACTThere is need for a hygienic processing of cassava. Prevalent condition in the commercial grating area of this staple food shows a susceptibility of food contamination. This project addresses the need for the development of a home scale cassava grater where the materials, the tuber s of cassava being grated can be properly monitored.Some design considerations used in this project are; the machine should be efficient during use in the household as well as moveable (portable) and Safety...

FABRICATION OF ELECTRICAL POP CORN MACHINE

ABSTRACTAn electric pop corn machine is a machine that is used to pop com for human consumption. It uses electricity as its source of energy, transfer heat energy, that is used to rotate due to the convention of electrical energy from the source to mechanical energy in the motor, the stirrer turns the corn so that it will not burns. This project went as far as meeting most of the requirement of advancement in technology, which lead to make work easy and comfortable for the user.To be can...


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