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TITLE PAGE
DESIGN, PRODUCTION, AND TESTING OF A ROTARY COMPRESSOR
BY
---
--/H2013/01430
DEPARTMENT OF ----
SCHOOL OF ---
INSTITUTE OF ---
DECEMBER,2018
APPROVAL PAGE
This is to certify that the research work, " design, production, and testing of a rotary compressor" 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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The main aim of this research is to produce, test and calculate the design of the rotary compressor. This compressor is a group of positive displacement machines that has a central, spinning roller and a blade. Compression mechanisms are the most important parts of the rotary compressor components. Detail design calculation of rotary compressor is described in this research. The compressor in this paper used refrigerant R-410A. The compressor work done from calculation is 630 Watts and cylinder and roller diameter is 43 mm and 36 mm respectively. The compressor motor is 777Watts. The motor with 3000 rpm, 220 volt and a frequency of 50 Hertz is used. Volumetric efficiency is 146.29%. Coefficient of performance is 3.5. The design is based on refrigeration load 2240 Watts.
TABLE OF CONTENTS
COVER PAGE
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWELDGEMENT
ABSTRACT
CHAPTER ONE
INTRODUCTION
1.1 BACKGROUND OF THE PROJECT
- AIM/OBJECTIVE OF THE PROJECT
- PROBLEM STATEMENT
- SCOPE AND LIMITATION OF THE PROJECT
- APPLICATION OF ROTARY COMPRESSOR
CHAPTER TWO
LITERATURE REVIEW
- OVERVIEW OF A REFRIGERATION COMPRESSOR
- TYPES OF REFRIGERATION AND AIR CONDITIONING COMPRESSORS
- DIFFERENCE BETWEEN ROTARY AND RECIPROCATING COMPRESSOR
- TYPE SELECTION CRITERIA
- HISTORICAL BACKGROUND OF THE STUDY
CHAPTER THREE
METHODOLOGY
- ROTARY COMPRESSOR WORKING PRINCIPAL
- OIL VS. NON-OIL ROTARY COMPRESSORS
- BENEFITS OF ROTARY COMPRESSORS
- ROTARY COMPRESSOR COMPONENTS
- SPECIFICATION DATA
- APPLICATION OF ROTARY COMPRESSOR
- BACKGROUD DESIGN
CHAPTER FOUR
RESULT ANALYSIS
- TEST THE SWEPT VOLUME OF ROTARY COMPRESSOR
- POWER AND MOTOR DESIGN
- CALCULATION RESULT OF ROTARYCOMPRESSOR
- NUMERICAL ANALYSIS OF COMPRESSION MECHANISMS
CHAPTER FIVE
- CONCLUSION AND RECOMMENDATION
- REFERENCES
CHAPTER ONE
1.0 INTRODUCTION
1.1 BACKGROUND OF THE STUDY
Compressor is a mechanical device to compress and pump the refrigerant vapour from a low-pressure region to a high- pressure region. Refrigerating compressor is a heart of refrigeration system. It also provides the primary force to circulate the refrigerant through the cycle [1]. Rotary compressor is a machine which compresses the gas as a result of the angular movement of the vane or roller. Rotary compressors have certain advantages such as continuously flow process, high speed of rotation and the design can be scaled down to vary small dimension. The design of this compressor does not require suction valve and installation of discharge valve is optional [4]. The rotary compressors are divided into four types; rotary sliding vane compressor, scroll compressors, screw compressor and rolling piston rotary compressor [2]. The rolling piston rotary compressor can be divided into four compartments, which are the accumulator, the oil sump, compression mechanism and discharge compartment. The compression mechanisms are important to produce the power in the compressor. The compression mechanisms are a roller, a blade and a cylinder. In this research, the design of the compression chamber of a rolling piston rotary compressor is calculated. And the flow in the compression chamber is shown by using software.
1.2 AIM AND OBJECTIVES OF THE PROJECT
The purpose of this research is produce, testing and to calculate the design of the rotary compressor. Objective of this work is to:
- Build and test this device
- Discuss different types of rotary compressor
- Calculate the coefficient of performance, refrigerating capacity, motor input power, friction power, compressor overall size
1.3 PROBLEM STATEMENT
Rotary compressor was invented to solve most of the obvious problem seen in other types of compressors such as big and heaviness, vibration and shaking during operation, low speed and noisy. Rotary compressor is compact and light. It does not exhibit vibration and shaking forces as that of the reciprocating compressor. So it does not require a rigorous foundation. It operates at high speed, so it can handle a large quantity of fluid. Machine parts are well balanced and less noisy.
1.4 SCOPE AND LIMITATION OF THE PROJECT
The compressor was built with motor of 777Watts. And the motor runs at the speed of 3000 rpm, 220 volt as the supply voltage and a frequency of 50 Hertz is used.
Rotary compressor discharge pressure per stage is low compared to the reciprocating compressor. And there is no flexibility in capacity and compression ratio.
1.5 APPLICATIONS OF ROTARY COMPRESSOR
The rotary compressor is generally used where a large volume of high-pressure fluid is required. For large industrial applications, high power air tools like jackhammers and impact wrenches, pneumatic pumps, sandblasting operations. It is used where continuous fluid flow is required, such as automated manufacturing, food packaging plants.
CHAPTER TWO: The chapter one of this work has been displayed above. The complete chapter two of " design, production, and testing of a rotary compressor" is also available. Order full work to download. Chapter two of " design, production, and testing of a rotary compressor" consists of the literature review. In this chapter all the related work on " design, production, and testing of a rotary compressor" was reviewed.
CHAPTER THREE: The complete chapter three of " design, production, and testing of a rotary compressor" is available. Order full work to download. Chapter three of " design, production, and testing of a rotary compressor" 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 " design, production, and testing of a rotary compressor" is available. Order full work to download. Chapter four of " design, production, and testing of a rotary compressor" 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 " design, production, and testing of a rotary compressor" is available. Order full work to download. Chapter five of " design, production, and testing of a rotary compressor" consist of conclusion, recommendation and references.
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