Repair and Rehabilitation of a Faulty Air Condition
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Abstract
The need for an authentic and dependable report relating to the repairs and recuperation of a defective air conditioner is ineluctable. The fact that numerous people use the air conditioner to cool the temperature in their separate home and services make its conservation a top precedence to every existent in order to avoid huge expenditure in the repairs of the system.
This report gives sapience into the applicability of an air conditioner, the history, the working principle and the general conservation one is anticipated to carry out for effective performance of the air conditioner. It also includes the report on the faults discovered with the form work carried out in the design.
latterly, advanced information pertaining to the repairs involving a defective air conditioner have been given in this report; this will salutary to those interested in the repairs of the defective air conditioner in future. TABLE OF CONTENTS CHAPTER ONE
1.1 Introduction
1.2 Literature Review
1.3 Definition Of An Air Conditioner
1.4 Why We Use Air Conditioner
1.5 Significance Of Study
1.6 Limitation Of Study
1.7 Basic Components Of Air Conditioner
1.8 Functions Of The Components
1.9 Air Conditioning System And Properties Of Air
CHAPTER TWO
2.1 Statement Of Problem/Faults
2.2 How To Detect The Faults
2.3 Brief Explanation Of Major Tools And Equipment’s Used
2.4 Detecting Of Faults
2.5 Correction Of Faults
2.6 Connection Of The Electrical Components
2.7 Detection Of Shortage Of Gas In The System
2.8 Replacement Of Front Grille And Filter
CHAPTER THREE
3.1 Maintenance Of Breakdown Air Conditioner
3.2 Causes Of Air Conditioner Breakdown
3.3 What Is Breakdown Maintenance
3.4 Categories Of Maintenance
3.5 Groups Of Air Conditioner Maintenance
3.6 General Maintenance And Repairs Schedules
3.7 Safety Precautions
CHAPTER FOUR
4.1 Principle Of An Air Conditioner
4.2 Mathematical Representations And Thermal Efficiency
4.3 Mathematical Analysis And Calculations
CHAPTER FIVE
5.1 Cost Analysis
CHAPTER SIX
6.1 Performance
6.2 Conclusion
6.3 References
CHAPTER ONE
1.1 INTRODUCTION
Over the years, all the tropical countries have been faced with the problem of air around them. The relative humidity of air in most of the tropics is very low; Hence the comfort is not there with the populace especially in the places of work. This consequently reduces the work rate of workers thereby affecting the GROSS NATIONAL PRODUCT of a country.
To this effect, the engineers and scientists are looking into the methods of bringing comfort to the people while at home and at work. They produced an appliance to help produce a cooler temperature for individuals known as AIR CONDITIONER. This appliance has been in operation for a very long time but most users prefer dumping their old ones for new Air conditioner due to lack of knowledge on how to maintain, repair or even rehabilitate minor faults in an air conditioner.
1.2 LITERATURE REVIEW
The origin of an air conditioner is necessary to trace. Its original conception, and the people that were involved in its production at its initial state.
An air conditioner was gradually developed and produced for cooling, cleaning heating and facilitating ventilating processes such as:
The end of the 15th century, Leonardo da rinci had built the first ventilating fan.
In the year 1959, Boyle and also in the year 1800, Dalton discovered both discovered laws for ideal gases.
In 1815 Robertson Buchanan published the first book on heating and ventilation.
In the middle of the 19th century fans, boilers and radiators had been invented.
In 1834, Alexander Twinning started commercial production of water ice, using the compression pump and sulphuric either as refrigerant.
Second half of 19th century, brought about the further development of ice making and air conditioning processes.
In the 20th century, Willis H. Carrier who is known as the “Father of Air Conditioning” designed and installed the first year round air conditioning system. It was performing the four major functions of heating, cooling, humidifying and dehumidifying of the air or rather using the air washer.
Willis H. Carrier (1976 – 1950) developed the applications of a forced draft fans, pipe coil heaters, centrifugal compressors, invented a psychometric chart and generally laid down the theory of air conditioning on a complete thermodynamic basis. On the most famous paper “Regional psychometric formulae” published in the year 1911, Willis Carrier related the dry bulb, we bulb; dew point temperatures of air with its sensible, latent and total heat and presented a theory adiabatic chart.
Air conditioning was increasingly been in use after Willis carrier’s invention; in cotton, rayon, silk, paper, tobacco, cady pharmaceutical and printing industries all around the world.
The first comfort for the people the air-conditioning was first installed in cinema building in 1920 in Chicago, employing dry ice machine and in 1922 in Los – Angeles using ammonia compressors.
This brought about an increase in demand and expansion in air conditioning equipments sales to cinema, office building, hostels, hospitals, airport terminal, departmental stores, banks, shops, and individual homes etc in the market, the buyers were assumed of better packages than the earlier ones.
1.3 WHAT IS AN AIR CONDITIONER
The provision of it can be defined as the process of treating air in order to clean or purify it, to control its temperature and humidity by heating or cooling and by humidifying and dehumidifying and to supply sufficient outdoor air for ventilation. The word air conditioning is employed to any process or system which fulfil all these requirements.
1.4 WHY WE USE AIR CONDITIONER
1. According to science, oxygen is needed for human life and for any living thing to stay alive, is one of the vital use of an air conditioner.
2. Air acts as a dilatants; ie the amount of air required depends on the permissible contaminant level for the room. The contaminant may be C02 human skin or omission from any other processes.
3. The air condition promotes air movement in t he space; this brings one of the environment comfort factors.
4. An air conditioner controls air borne contamination i.e industrial ventilation.
1.5 SIGNIFICANCE OF STUDY
The purpose of studying about Air – conditioner is to show how necessary it is needed in a house. In other words, when one owns this appliance and its not functioning properly due to a faulty in the system, this study is very important and a guide to the relevant steps of maintaining and knowing what one should do in order to discover a fault in the air conditioner and having a solution.
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