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Design, Simulation, Construction and Performance Evaluation of a Solar Oven

Design, Simulation, Construction and Performance Evaluation of a Solar Oven

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DEDICATION

This research material, titled “Design, Simulation, Construction and Performance Evaluation of a Solar Oven” is dedicated to God for His boundless grace and guidance. It is also a tribute to all computer enthusiasts whose contributions made my research journey smoother and enriched my documentation process, making the experience truly fulfilling.



ACKNOWLEDGEMENT

I am profoundly grateful to everyone who contributed to the successful completion of this project. I am especially grateful to my Supervisor (Name), the Head of Department (Name), and the Lecturers in the Department of Mechanical Engineering for their invaluable guidance and support. I also acknowledge the contributions of authors and scholars whose works on Design, Simulation, Construction and Performance Evaluation of a Solar Oven provided essential insights. Special thanks go to my study area (and any funding organizations, if applicable) for their financial assistance. I am equally thankful to stakeholders, including mentors, teachers, and colleagues, for their encouragement and support. Finally, I deeply appreciate my family and friends for their patience and unwavering support throughout this journey. Your contributions have been instrumental in making this research a reality.



ABSTRACT

A solar ovenis a device that converts solar energy into useful heat in a confined space (oven chamber) which can be utilised for cooking and baking purposes.The oven consists of plane reflectors to concentrate the solar radiation on the collector.The heat gain is maximum if the collector and reflectors are continuously adjusted such that the incidence angle of the reflected and direct radiations are minimised. In practise, it is always difficult to manually track the movement of the sun and the use of trackers can be very expensive. As such, an analytical model was developed to evaluate the optimum monthly collector and reflector tilts for maximum output hen employing the single axis tracking mode.

The operation of the different components of the oven was modelled using TRNSYS, Microsoft Excel and EES programs alongside solar data for Zaria. Optimisation of the design was carried out based onweather conditions prevalent on the average day of the design month i.e. The month with the least solar radiation. The tilt angles of collector and reflectors required for the optimum collection of solar irradiation for each month were obtained from the simulation results of the oven model carried out for 12 months of the year.

The optimum collector area and insulation thickness were also obtained through parametric studies by varying the aforementioned parameters until a stagnation temperature of 100?C was obtained for the average day of the design month. The simulation results for the design with different collector areas and insulation thickness show that an area of 0.49m2 and thickness of 0.12m yields a stagnation temperature of 100?C. However, the stagnation temperature achieved was insensitive to larger values of the design parameters.


Design, Simulation, Construction and Performance Evaluation of a Solar Oven

CHAPTER ONE

1.0 Introduction

1.1 Background of Study

Energy is the focal point of all human activities; it is the basis of industrial civilization. Without energy, modern life would cease to exist. in the past, the demand for energy sources was minimal because it was primarily used for cooking and local production. But as time went on, population increase and technological advancement led to more demand for energy. The major sources of energy are the conventional sources, which include: fossil fuels, and nuclear fuels. Fossil fuels, which include petroleum, coal, and natural gas, provide most of the energy need of modern industrial society. Other uses are found in the transportation, residential heating, and electric-power generation. Nuclear fuels are used to generate electricity, but it is utilised mainly in the developed countries due to high level of supervision and maintenance required.

The non-conventional (renewable) sources of energy include: hydroelectric power, solar energy, wind energy, biomass, ocean thermal energy, tidal energy, and geothermal energy, but the potential of these sources is still underutilised because they are much more expensive to harness than energy derived from fossil fuels. Hydroelectric power requires a large capital investment, so it is often uneconomical for a region where coal or oil is cheap. As such, they contribute a little percentage to the massive energy requirement of the world population. However, the fear of depletion of fossil fuels due to the fast rate of consumption has provoked further development of these alternative energy sources, such as solar energy.

…

CHAPTER TWO

2.0 Literature Review

2.1 Introduction

This chapter focuses on the review of related literature. A literature review includes the current knowledge as well as theoretical and methodological contributions to a particular topic. It documents the state of the art with respect to the topic you are writing. It surveys the literature in the topic selected. In this research work the literature review includes the conceputal review, theoretical framework, the review of related literature …

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