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TITLE PAGE
THE DESIGN AND CONSTRUCTION OF AC (WINDOW UNIT) CONTAINING HEAT PUMP
BY
---
--/H2013/01430
DEPARTMENT OF ----
SCHOOL OF ---
INSTITUTE OF ---
DECEMBER,2018
APPROVAL PAGE
This is to certify that the research work, " the design and construction of ac (window unit) containing heat pump" by ---, Reg. No. --/H2007/01430 submitted in partial fulfillment of the requirement award of a Higher National Diploma on --- has been approved.
By
--- . ---
Supervisor Head of Department.
Signature………………. Signature……………….
……………………………….
---
External Invigilator
DEDICATION
This project is dedicated to Almighty God for his protection, kindness, strength over my life throughout the period and also to my --- for his financial support and moral care towards me.Also to my mentor --- for her academic advice she often gives to me. May Almighty God shield them from the peril of this world and bless their entire endeavour Amen.
ACKNOWLEDGEMENT
The successful completion of this project work could not have been a reality without the encouragement of my --- and other people. My immensely appreciation goes to my humble and able supervisor mr. --- for his kindness in supervising this project.
My warmest gratitude goes to my parents for their moral, spiritual and financial support throughout my study in this institution.
My appreciation goes to some of my lecturers among whom are Mr. ---, and Dr. ---. I also recognize the support of some of the staff of --- among whom are: The General Manager, Deputy General manager, the internal Auditor Mr. --- and the ---. Finally, my appreciation goes to my elder sister ---, my lovely friends mercy ---, ---, --- and many others who were quite helpful.
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This project study is applicable to the field of heating and air conditioning. The design and construction of a window unit air conditioner with heat pump was carried out to achieve a suitable comfort in our home and office environment. After a study of existing air-conditioners and survey for availability of materials, the design concept of the window unit air-conditioner was achieved. And the following standard part were estimated as; compressor power rating 2.5hp, condenser power 8KW, evaporator power 5.85KW, power rating of blower as 120watts and heat pump of 100W. And with a working fluid of refrigerant R410A which is weak compared to refrigerant R22 but less hazardous to the environment. The window unit air conditioner was tested for conformance to specification and it was satisfactory.
TABLE OF CONTENTS
COVER PAGE
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWELDGEMENT
ABSTRACT
CHAPTER ONE
- INTRODUCTION
- BACKGROUND OF THE PROJECT
- AIM OF THE PROJECT
- OBJECTIVE OF THE PROJECT
- PURPOSE OF THE PROJECT
- SIGNIFICANCE OF THE PROJECT
- APPLICATION OF THE PROJECT
- PURPOSE OF USING ICS
CHAPTER TWO
LITERATURE REVIEW
- OVERVIEW OF THE STUDY
- HISTORICAL BACKGROUND OF THE STUDY
- OPERATING PRINCIPLES
- REVIEW OF EXISTING INSTALLATION TYPES OF AIR CONDITIONER
- OVERVIEW OF HEAT PUMP
- TYPES OF HEAT PUMP SYSTEMS
CHAPTER THREE
MATERIALS AND METHOD
- OPERATING PRICIPLE OF WINDOW AC UNIT
- DESIGN SPECIFICATION
- DESIGN CONSIDERATION
-
DESIGN CALCULATION
Calculation of Areas in Building Space
Area of Door
Calculation of Area of Concrete Wall
Estimation of Internal Heat Gain
Estimation of Heat Gain due to Air Inflation
Estimation of Coefficient of Performance of the System (COP)
Calculation for Mass Flow Rate
Calculation for Compressor Power
Calculation of Heat Rejected By Condenser
Volume of Air Flow
Capacity of the humidity (mass of water) removed per hour
Latent Heat Removed From the Air (LH)
Sensible Heat Removed From the Air (SH)
Sensible Heat Factor (SHF) Of the System
- MATERIAL REQUIREMENTS AND SELECTION
- FABRICATION REQUIREMENT
- MATERIAL SELECTION
- FABRICATION PROCEDURE
- HEAT PUMP DESIGN
- OPERATION OF HEAT PUMP
CHAPTER FOUR
- RESULTS AND DISCUSSION
- IC PIN NUMBERING
- MOUNTING STYLE
CHAPTER FIVE
- CONCLUSION
- REOCMMENDATION
- REFERENCES
CHAPTER ONE
1.0 INTRODUCTION
1.1 BACKGROUND OF THE STUDY
Air conditioning is the process of altering the properties of air to favorable conditions, typically with the aim of distributing the conditioned air to an occupied space is to improve comfort whilst heat pump only produces heat which is mostly used during the time of cold. In the most general sense, air conditioning can refer to any form of technology humidification, de-humidification, heating, cooling, cleaning, ventilation, or air movement that modifies the condition of air [1-3]. In general, the air conditioner is a device that lowers the air temperature. The cooling is most done using a simple refrigeration cycle, but sometimes the evaporation is used, commonly for the comfort of cooling in buildings and motor vehicles [4-5]. In construction, a complete system of heating, ventilation and air conditioning is referred to as "HVAC" [6]. Air conditioning can also be provided by the simple process called free cooling which uses pumps to circulate a coolant (typically or a glycol mix) from a cold source, which in turn acts as a heat sink for the energy that is removed from the cooled space [7].
Generally, air conditioner can be classified into [8-9]; window unit air-conditioners, central unit air-conditioner, and split unit air-conditioner. In this air conditioner, all the component, namely; the compressor, condenser, expansion valve evaporator and cooling coil are enclosed in a single box. Window unit air conditioners are installed in an open window. The interior air is cooled as a fan blows it over the evaporator. On the exterior the heat drawn from the interior is dissipated into the environment as a second fan blows outside air over the condenser. A large house or building may have several such units, allowing each room to be cooled separately.
The central unit air conditioning unit is for cooling big building houses, offices, entire hotels, cinema hall, and factory etc. If the whole building is to be air condition, HVAC engineers find that putting individual units in each of the room is very expensive initially as well in the long run. The central air conditioning unit is comprises of huge compressor that has the capacity to produce hundreds of tons of air conditioning. The window unit air conditioning system comprises of thermostat, a fan or blower, tubing filled with refrigerant, a compressor, an evaporator coil and a condenser coil.. The heat pump takes care of the heating of the environment. A window air conditioner is the simplest type of AC unit. It’s a single unit with all of the parts and components contained inside one box or casing. This type of AC is usually mounted or installed in a window and plugs into a traditional electrical outlet. It’s convenient because it can be moved from window to window as needed and operates independently from a home HVAC system. However, considering the fact that Nigeria is located in a tropical region which is characterized by excessive high temperature and highly humid, it became necessary to develop a mechanical system which can help to reduce the hot the ambient temperature within a confined space for human comfort. In this research work, we carried out the design and construction of window air conditioner that contain heat pump.
1.2 AIM OF THE PROJECT
The main aim of this work is to build a window air conditioner with heat pump in mechanical engineering workshop.
1.3 OBJECTIVE OF THE PROJECT
The objectives of this work are:
- To build an air conditioner with heat pump
- To analyze calculations involved during the construction
- To study and understand working principle of an air conditioner.
- To analyze components of air condition.
- To analyze the operation and component of heat pump.
1.4 PURPOSE OF THE PROJECT
The purpose of this work is to setup a working and tested okay air conditioner which contain heat pump.
1.5 SIGNIFICANCE OF THE PROJECT
As a student of mechanical engineering, this work exposed me to working principle of an air conditioner, construction procedure and troubleshooting guide to help me address the most common problems you may encounter with your air conditioner. With this work I was able to explain how to build an air conditioner and its heat pump.
1.6 APPLICATIONS OF THE PROJECT
Apart from academic purposes, this study can also be useful to:
- Ac producers,
- Ac users/ owners
CHAPTER TWO: The chapter one of this work has been displayed above. The complete chapter two of " the design and construction of ac (window unit) containing heat pump" is also available. Order full work to download. Chapter two of " the design and construction of ac (window unit) containing heat pump" consists of the literature review. In this chapter all the related work on " the design and construction of ac (window unit) containing heat pump" was reviewed.
CHAPTER THREE: The complete chapter three of " the design and construction of ac (window unit) containing heat pump" is available. Order full work to download. Chapter three of " the design and construction of ac (window unit) containing heat pump" consists of the methodology. In this chapter all the method used in carrying out this work was discussed.
CHAPTER FOUR: The complete chapter four of " the design and construction of ac (window unit) containing heat pump" is available. Order full work to download. Chapter four of " the design and construction of ac (window unit) containing heat pump" consists of all the test conducted during the work and the result gotten after the whole work
CHAPTER FIVE: The complete chapter five of design and construction of a " the design and construction of ac (window unit) containing heat pump" is available. Order full work to download. Chapter five of " the design and construction of ac (window unit) containing heat pump" consist of conclusion, recommendation and references.
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