Substitutional and Vacancy defects in Two-dimensional ALSB: a First Principle Approach

Description

Download Substitutional and Vacancy defects in Two-dimensional ALSB: a First Principle Approach. Mechanical Engineering students who are writing their projects can get this material to aid their research work.

Abstract

This study adopts the theory of fluidization to design a combustor suitable for use in the rural communities of Nigeria.

The Combustor, which will use sand particles as bed material, will burn maize cobs supplied at 5kg/h to generate heat energy for thermal applications including steam generation.

Like most African countries, the lack of adequate electricity supply in Nigeria has hampered economic activities, with less than 40% of the rural community connected to the national grid due to the high cost of rural electrification exercises.

Furthermore, the rural population continuously relies on the direct burning of solid biomass (like fuelwood) as means of obtaining much-needed heat energy for basic applications like cooking and heating, constituting an environmental nuisance.

The study contends that using a bubbling fluidized bed combustor, it is possible to reduce energy poverty in the rural areas of Nigeria while complying with the sustainable development goals.

Introduction

Global demand for energy has led to the rapid depletion of non-renewable energy resources (fossil fuels). This demand, along with high crude oil prices are key factors driving renewable energy development and utilization (Omer, 2013).

Renewable energy is the energy that comes from natural sources such as the sun, wind, water, and plant or animal organic matter. It is replenished by natural processes at a rate equal to or faster than the rate at which it is consumed.

Biomass, a renewable energy source, refers to biological material from living or recently living plants and animals. It can either be used directly or converted into other energy products such as biofuel.

While the discovery of fossil fuels has led to a decline in the use of biomass, recent data have indicated renewed efforts towards the conversion of biomass to bioenergy either by combustion, gasification, conversion of biomass to biofuels, or biomass briquettes.

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