You can download complete project materials on Design of Melon De-Husking and Separation Machine from chapter one to five with references and abstract.
CLICK HERE TO DOWNLOAD THE COMPLETE MATERIAL (CHAPTER 1 -5)
PASS 2024 UTME WITHOUT STRESS:- 👉 DOWNLOAD and PRACTICE with 2023 UTME CBT APP 📱👈
CLICK to DOWNLOAD NOW.:- 👉 PASS Your POST UTME by Downloading Your School's Post UTME Past Questions and Answers 📱👈
TABLES OF CONTENT
CHAPTER ONE
Introduction
Description of the Design Melon
Principles of Operation
Advantages
Objectives
Scope
Beneficiaries
CHAPTER TWO
Review of Some Properties
Some Local Variety of Melon Used
Manual De-Husking
Singular Method of Manual De-Husking
Manual Batch Method of De-Husking
Mechanized Method of De-Husking
Advantages
Disadvantages
Melon Treatment Before De-Husking
CHAPTER THREE
Mechanics of Operation of Melon De-Husking
Circular Motion and Centrifugal Force (FC)
Rotational Torque (T)
Work Done by a Torque
Force Analysis on Shaft
Volume of Air Generated (VA)
CHAPTER FOUR
Design Calculations
Optimal De-Husking Speed
Angular Velocity of Ratio of the Impeller (W)
Centrifugal Force Developed (FC)
Torque Developed (T)
Power Developed (P)
Loads of Shaft of the Electric Motor
Friction and Particle Motion
Determination of the Bearing Reaction R1 and R2
CHAPTER FIVEÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â
Manufacturing Processes for the Melon De-Husking
Assembly Process
First Test Run
Second Test Run with Treated Melon
Cost Analysis
Conclusion
Recommendation
References                                                                   Â
CHAPTER ONE
1.1 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%Â 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.
1.2 DESCRIPTION OF THE DESIGNED MELON
DE-HUSKING AND SEPARATION MACHINE
The assembly drawing of the designed de-husking and separation is shown in appendix.
The machine consists of the following components namely.
Impeller
Inlet hopper
De-husking casing
Inlet channel
Casing cover
Chequer linings
Exit channel
Adapter
Blower
10) Electric Motor
11) Structural Stand
12) Blower Casing
13) Blower Impeller
14) Blower Casing Cover
15) Blower Suction Channel
16) Air exit channel
17) Blower mounting base
18) Flange bearings
19) Bolts and Nuts
20) Blower shaft
The de-husking impeller is housed by the de-husking casing. The casing is lined with cylindrical chequers. The cylindrical impeller is mounted very closely to the inside walls of the cylindrical casing leaving a minimal gap to contain the melon seeds as they flow through this gap from inlet channel to the exit channel. The casing is covered with a cover plate.
The impeller is connected to the shaft of the electric motor through an adapter. The blower impeller is housed by the blower casing. The blower sucks air from outside through the suction channel and the impeller forces the air through exist channel as required. All the arrangements of the machine are carried by the structural base. Bolts and nuts are used to ensure proper mounting of components on the structural base.
1.3 PRINCIPLES OF OPERATION Â Â Â Â Â Â Â Â Â
The principle used by this machine to achieve the melon de-husking is attrition and density differential between the cracked shells and the white seeds is applied to achieve the required separation.
The electric motor provides the primary motion which rotates the de-husking impeller. The melons are introduced through the inlet hopper of gravity. The melons are directed to flow towards the walls of the casing to the chequers. The rotating impeller then rub the melons on the chequers in the direction of rotation of the impeller. The melon must be properly treated with water (moisture) arieated properly before de-husking.
The rubbing action peels the shells of the melons and equally move them along with the broken shells in the direction of rotation to the exit channel.
The blower shaft transmits motion from the electric motor to the blower impeller, thereby delivering certain quantity of air which is channel to meet the broken shells and white seeds coming out from the de-husking casing.
The broken shells being lighter than the white seeds are carried away by the air to a different direction while the white seeds move into a receiver where they are collected.
1.4 ADVANTAGES
i) The machine combines two processes in one ie de- Husking and separation.
The machine is portable and occupies very little space.
The machine is cheap when constructed locally, compared to cost of importation.
The machine can be confidently be driven by a single phase electric motor thereby making power consumption rate very low.
De-husking and separation time is highly reduced by using this machine.
Labour input in de-husking and separation is also drastically reduced.
viii. Productivity in de-husking and separation is highly increased.
1.5 OBJECTIVE
(i) The objective of this project is to design, fabricate and test a melon de-husking and separation machine in order to increase productivity in melon processing and reduce human labour of manual de-husking and separation to the bearest minimum.
CLICK HERE TO DOWNLOAD THE COMPLETE MATERIAL (CHAPTER 1 -5)
>GUARANTTEE|:| Score 280 Above in 2024 UTME👉 DOWNLOAD FREE JAMB CBT APP HERE:.: GURRANTTEE Score 280 Above in 2022 UTME👉 DOWNLOAD FREE JAMB CBT APP HERE 📱👈WISH TO STUDY & LIVE in UK?:- STUDY, WORK AND LIVE IN the UK Application Form NOW OUT. Call 08030447894
