ABSTRACT
This write up is a defeat of the process and formulation of plans for the physical realization of the construction of a mobile deep freezer. It is divided in chapters which discussed extensively on the practical refrigeration system with full attention given design factors, working principle and choice of material.
It is strongly believed that this will make and interesting study for inquisitive minds and collection of facts further related work.
NOMENCLATURE
M = Mass
A = Area
S = Enthropy
V = Volume
M = mass flow rate
D = Diameter
Gr = Gravity
P = (rho) Density
t = Temperature Different
h = Enthalpy
Q = Heat Quantity
hl = Latent heat of fusion
Gr = Equivalent load
L = Length
P = Pressure
T = Temperature
U = Internal energy
K = Thermal conductivity
X = Material thickness
COP = Coefficient of performance
Q = Heat transfer per area
H.P = Horse power
Vs = Swept vol.
A.C = Alternating current
C = Specific heat.
TABLE OF CONTENTS
Title Page
Letter of Transmittal
Signature Page
Release Page
Dedication
Acknowledgement
Abstract
Nomenclature
Table of Contents
CHAPTER ONE
1.0 Introduction
1.1 The Purpose of the Design
1.2 The Importance and Specification of the Design
1.3 Scope and Limitation
1.4 Statement of the Problem
1.5 Assumption
1.6 Definition of Terms
CHAPTER TWO
2.0 Literature Review
The Relation of Refrigeration System to Thermodynamics Principle
2.1 The Carnot Cycle
2.2 Reversed Carnot Cycle (Ref Cycle)
2.3 The Coefficient of Performance
2.4 Practical Ideal Ref Cycle (Modified Carnot Cycle)
2.5 Refrigeration Plant with Isentropic Efficiency
2.6 Refrigeration
2.7 Refrigeration Capacity
2.8 Wet Versus Dry Compression
2.9 Standard and Actual Vapour Compression Cycle
CHAPTER THREE
3.0 The Basic Component of Deep Foreign
3.1 Description Refrigeration Cycle
3.2 Mechanical Refrigeration Cycle
3.3 Construction Method and Procedures
3.4 Construction of Outer Cabinet
3.5 Construction of Inner Cabinet
3.6 Construction of Base Structure
3.7 Laying of Evaporator Pipe
3.8 Arrangement of Components
3.9 Assembling of Units
CHAPTER FOUR
4.0 Analysis and Calculation as it Relates to Deep Freezer or Ref. System
4.1 Cooling Load Calculation
4.2 Heat Leakage Through Boundaries
4.3 Product Load
4.4 Air Change Load
4.5 Miscellaneous Load
4.6 Determination of Standard Component
4.7 Piston Displacement
4.8 Coefficient of Performance
CHAPTER FIVE
5.0 Choice of Refrigeration
5.1 Dryness Fraction or Quality of Ref.
5.2 Desired Properties of Refrigeration
5.3 Phase Separation
5.4 Mixability
5.5 Thermal Properties of Refrigeration
5.6 Lubrication
CHAPTER SIX
6.0 Mode of Operation
6.1 Refrigeration Application
6.2 Maintenance of Deep Freezer
6.3 Problem and Remedy
6.4 Cost Evaluation
6.5 Recommendation
6.6 Conclusion
6.7 References