TABLE OF CONTENTS
TITLE PAGE
APPROVAL PAGE
CERTIFICATION
DEDICATION
ACKNOWLEDGEMENTS
TABLE OF CONTENTS
LIST OF TABLES
LIST OF FIGURES
ABSTRACT
CHAPTER ONE: INTRODUCTION
Background of the Study
Statement of the Problem
Purpose of the Study
Significance of the Study
Research Question
Hypothesis
Scope of the Study
CHAPTER TWO: REVIEW OF RELATED LITERATURE
Conceptual Framework
Refrigeration and Air-Condition Technology
Polytechnic Education
Capacity Building
Development of Module
Need for a Module
Objectives of Capacity Building Module
Content of Capacity Building Modules
Training Facilities in Capacity Building Modules
Teaching Strategies in Capacity Building Modules
Evaluation Techniques in Capacity Building Modules
Theoretical Framework
Taba’s model of Curriculum Development
Skinner’s Operant Conditioning
Career development theory
Related Empirical studies
Summary of Review of Related Literature
CHAPTER THREE: METHODOLOGY
Design of the Study
Area of the Study
Population for the Study
Sample and Sampling Technique
Identification of Goal for Capacity Building Module
Development of Instrument
Validation of the instrument
Need Assessment
Development of Module
CHAPTER FOUR: PRESENTATION AND ANALYSIS OF DATA
Research Question 1
Research Question 2:
Research Question 3:
Research Question 4:
Research Question 5:
Major Findings of the Study
Discussion of Findings
CHAPTER FIVE: SUMMARY, CONCLUSION AND RECOMMENDATION
Restatement of the Problem
Summary of the Procedures used for the Study
Major Findings of the Study
Implication of the Study
Conclusion
Recommendation
Suggestion for Further Studies
REFERENCES
ABSTRACT
The purpose of the study was to develop capacity building modules for technologists in refrigeration and air-conditioning in south-south Nigeria. Specifically, the study determined the Objectives of the modules for the capacity building of refrigeration and air-condition technologists. Content of the modules for capacity building of refrigeration and air-condition technologists. Teaching strategies for capacity building of refrigeration and air-condition technologists. Training facilities for capacity building of refrigeration and air-condition technologists. Evaluation techniques for capacity building of refrigeration and air-condition technologist. Develop modules for capacity building of refrigeration and air-conditioning technologists. Try-out to validate the developed modules. Research and development design was used. Five research question and one Hypotheses was used. The total population of the study was 118 which comprised 14 teachers of refrigeration and air-conditioning, 34 technologist, 45 technicians, and 25 students of mechanical engineering used for try-out. There was no sampling and purposive sampling technique was used. Two sets of instrument namely; questionnaire for the development of capacity building module for technologist in refrigeration and air-conditioning (QDCBMTRA) and Refrigeration and Air-conditioning Psychomotive Rating Scale (RAPRS) were subjected to validation by two specialist in Refrigeration and Air-conditioning industry and two lecturers in the university. Cronbach alpha was used to establish the reliability of the instrument which yielded 0.89 and Kendall concordance correlation was used to determine the reliability of (RAPRS) Data obtained from the administration of the instrument was analyzed using cut-off point of 3.5 for decision making. The information obtained was used for the development of the capacity building modules. The developed modules were tried- out on 25 final year students of mechanical engineering in Federal Polytechnic, Offa. There was initial and final rating. The scores obtained was analyzed using ANCOVA at 0.05 level of significance to test the hypothesis The result obtained revealed that there was significance difference 0.05 level. The study recommended that National Board for Technical Education should set up curriculum review committee that will use the module content for modification of refrigeration and air-conditioning practical content. Federal Government should re-train polytechnics teachers and graduates of polytechnics for capacity building in refrigeration and air- conditioning using developed modules.
CHAPTER ONE
INTRODUCTION
Background of the Study
Refrigeration and air-conditioning is a vital technology needed for industrial development. The importance of refrigeration and air-conditioning is evident in domestic, commercial and industrial application. Fruits and vegetables are stored at a low temperature after harvest with the aid of refrigerator. Also beverages, as well as staple foods are commonly preserved using refrigerator. Air-conditioning has enhanced business and industrial productivity while adding to human comfort. Rajput (2010) stated that application of refrigeration and air-conditioning are found in ice making, transportation, industrial air-conditioning, comfort air-conditioning, chemical and related industries, medical, processed food products and beverages, oil refining and synthetic rubber manufacturing, manufacturing and treatment of metals and freezing of products.
Refrigeration and air-conditioning systems are the equipment that are employed for producing low temperature. According to Rajput (2010), refrigeration is the science of producing and maintaining temperature below that of the surrounding atmosphere, and air-conditioning is the science of producing specified condition of air within required space of building. William and William (2008) described refrigeration as the process of removing heat from a place where it is not needed and removing that heat to a place where it creates little or no difference; while air-conditioning is described as the process of maintaining comfort condition in a defined area. Arora (2000) in his view, described refrigeration as the extraction of heat from a space at a temperature lower than the surrounding temperature, while air-conditioning is a system of....
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