Key Features:
- No of Pages: 64
- No of Chapters: 05
Introduction:
Abstract
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Table of Content
CHAPTER ONE
1.1 Introduction
1.2 Description of the Design Melon
1.3 Principles of Operation
1.4 Advantages
1.5 Objectives
1.6 Scope
1.7 Beneficiaries
CHAPTER TWO
2.1 Review of Some Properties
2.2 Some Local Variety of Melon Used
2.3 Manual De-Husking
2.4 Singular Method of Manual De-Husking
2.5 Manual Batch Method of De-Husking
2.6 Mechanized Method of De-Husking
2.7 Advantages
2.8 Disadvantages
2.9 Melon Treatment Before De-Husking
CHAPTER THREE
3.1 Mechanics of Operation of Melon De-Husking
3.2 Circular Motion and Centrifugal Force (FC)
3.3 Rotational Torque (T)
3.4 Work Done by a Torque
3.5 Force Analysis on Shaft
3.6 Volume of Air Generated (VA)
CHAPTER FOUR
4.1 Design Calculations
4.2 Optimal De-Husking Speed
4.3 Angular Velocity of Ratio of the Impeller (W)
4.4 Centrifugal Force Developed (FC)
4.5 Torque Developed (T)
4.6 Power Developed (P)
4.7 Loads of Shaft of the Electric Motor
4.8 Friction and Particle Motion
4.9 Determination of the Bearing Reaction R1 and R2
CHAPTER FIVE
5.1 Manufacturing Processes for the Melon De-Husking
5.2 Assembly Process
5.3 First Test Run
5.4 Second Test Run with Treated Melon
5.5 Cost Analysis
5.6 Conclusion
5.7 Recommendation
References
Introduction
Nigeria is an agricultural nation. Melon (Citrullus Vulgaris) is widely cultivated in Nigeria, among other seedlings during the planting season yearly. Several tones of the melon seeds are gathered each harvesting period but only very low percentage of the total harvest are dried by atmospheric draught and bagged for storage. High percentage waste is encored due to lack of good processing and storage facilities.
Melon when properly processed yields a lot of by-products, which could be used as food or as raw material for small and large scale industrial manufacture melon is highly enriched with oil. It has about 45% oil content. The oil could be extracted to form a very good source of vegetable oil.
After pressing out the oil, the remaining product can be used as food for human of as an additive in agro-feed manufacture. Melon without oil can be grounded and used as thickener or binder in the chemical and pharmaceutical industries.
The outside shell of the melon seeds when properly harvested in large quantity can equally be used in preparation of agric feed. The shell has about (12-55) MJ/kg calorific value and therefore can be used as a source of energy for industrial use.
The major problems encountered in the processing of melon seeds are the removal of the yellow outside shell and the separation of the broken shells form the white seeds. Locally as at now, manual approach is used for the de-husking and separation. The consequence of this is low productivity, increase in processing time, and increase in human labour.
A mechanized method of de – husking and separation will definitely increase productivity, reduce processing time and bring down human labour input to the minimum.
These problems arising form the manual de-husking and separation of the melon white seed from the shell necessitated the idea of designing, constructing and testing a melon de-husking and separation machine for our local communities and industries.
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