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Design, Fabrication And Performance Evaluation Of Pedal Operated Groundnut Decorticator
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Gardi (Gsrdi (2008) developed rotary type groundnut
decorticator-cum-cleaner. The average decorticating capacity, average
decorticating efficiency, average cleaning efficiency, percent broken
kernels, cost of operation were estimated. The results showed that the
values were 120.72 kg/h, 84.69%, 87.76%, 5.7% and Rs 23.28/100kg
kernels, respectively.
Haque et al., (2009) reported that
crushing strength of rubber seeds were found to be 121.1kg/cm2 followed
by Jatropha seed (38.1kg/cm2), Castor see (26.5 kg/cm2) and Karanj seed
(24kg/cm2) respectively.
Pradhan et al., (2010) developed
hand-operated for Jatropha fruit. The major components of the machine
are frame, hopper, decorticating chamber, concave sieve, rotating
blades, discharge outlet and a vibrating separator with sieve to
separate seed and shell. The performance parameters of the machine
including percentage of whole seed, broken seed, partially shelled
fruit, unshelled fruit, machine efficiency and decortications
efficiency, were evaluated at four different moisture content (7.9%,
10.53%, 3.09% and 15.65% d.b) with a combinations of concave sieve and a
rotating blade.
Oduma et al., (2015) developed comparative
performance of a locally developed groundnut decorticator with an
imported kirlosker decorticator. Result obtained showed that the locally
developed decorticator performed credibly better than imported
decorticator. The local decorticator had threshing and cleaning
efficiencies of 97.52% and 97.88% respectively with minimal total seed
losses of 4.13% while the imported kirlosker decorticator recorded a
threshing efficiency of 96.58% and cleaning efficiency of 97.66% with
total seed losses of 7.94%. more so, the local decorticator recorded
97.26% 63.84% and 0.038kw/kg for the grain recovery range, capacity
utilization and threshing intensity respectively while the imported
decorticator in that order recorded 93.92%,61.24% and 0.013km/kg
respectively.
Priel (2004) reported that, the more sophisticated the
equipment the better it is expected to perform and with the
confirmation of this trend it becomes more dependent on maintenance. But
it becomes counterproductive if such sophisticated equipment is
imported into an underdeveloped country with inadequate maintenance
capability, technology or lack of knowledge of the vital equipment
characteristics maintainability and reliability (Imonigie 2003).
Danda
and Dzivama (2000), however, maintained that in contrast with the
locally manufactured machines, the imported machines are usually more
prone to maintenance problems since they are designed and manufactured
with the components under different environmental and operating
conditions.
Kudabo et.al., (2001) developed a local yam bean thresher
the result of the performance evaluation revealed a high threshing and
cleaning efficiencies of 95% and 95.3% respectively with a low
percentage loss of 1.45%.
Adewunmi (2000) developed a local groundnut, the shelling efficiency varied from 92.90%-9.3%. Danda and Dziama (2000) compered a locally developed rice thresher with a vortex rice fan, result revealed that, the local thresher performed credibly well in comparison to the imported one with threshing efficiencies of 98.01% and 98% respectively; and they recommended that local threshers can be substituted for the imported thresher thereby conserving Nigeria`s foreign exchange.
Oduma et.al., (2014) appraised the performance of a locally developed pigeon pea thresher and recorded a threshing efficiency range of 97.01% - 99.97% with minimal seed loss/damage of 0.2%
Ojha and Michael (2012) developed a kirlosker groundnut decorticator, it was developed and built by a firm of Maharashtra state of India. Intensive testing of countries like Mali, Sierra Leone, Nigeria, Indonesia and Philippines recorded high threshing and cleaning efficiencies with low damage/loss of the seeds.
Deshmukh et. al., (2016) design and fabrication of groundnut pod separating machine. The machine has the capacity of shelling 400kg of groundnut per hour with a shelling and separating efficiencies of 95.25% and 91.67% respectively.
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ABSRACT - [ Total Page(s): 1 ]ABSTRACTShelling of groundnut pods (Arachis hypegea) by hand is tedious, laborious and unhygienic with low efficiencies. As a result farmer get low income due to amount of broken kernels and a lot of time is lost in the tedious shelling operation. To overcome this problem, pertinent parameters that influence shelling efficiency of pedal operated groundnut decorticator were identified. Pedal operated decorticator were designed and fabricated with chain and sprocket of bicycle and aluminum spike t ... Continue reading---
APPENDIX A - [ Total Page(s): 3 ] ... Continue reading---
APPENDIX B - [ Total Page(s): 6 ]S.E= ("H" )/"A" "×100%" = "549" /"1000" "×100%" = 55% At 1500g S.E= ("H" )/"A" "×100%" = "808" /"1500" "×100%" = 54%Percentage of breakage Broken Efficiency (%) B.E= ("E" )/"A" "×100%" Where B.E is broken efficiency (%) E= Weight of broken groundnut seed (g) A= Weight of groundnut seed fed in to hopper (g) Broken Efficiency for Operator (I) At 500g B.E= "E " /"A" ... Continue reading---
LIST OF TABLES - [ Total Page(s): 1 ]LIST OF TABLESTable No Table 3.1: BILL OF ENGINEERING MEASUREMENT AND EVALUATION (BEME) Table 3.1: Sample Preparation Table 4.1 Data Sheet for Physical Properties of Groundnut Pods Table 4.2 Data Sheet for Output Parameters Table 4.3 Data Sheet for Output Table 4.4 Average Performance of Thresher ... Continue reading---
LIST OF PLATES - [ Total Page(s): 1 ]LIST OF PLATESPlate No Plate 2.1: Groundnut Pod Plate 3.1: Sample of Groundnut Seed Plate 3.2: Determination of Coefficient of Static Friction and Angle of Repose Plate 3.3: Pedal Operated Groundnut Decorticator Plate 3.3: Digital Venier Caliper Plate 3.4: Digital Weighing Scale Plate 3.5: Digital Stop Watch Scale Plate 3.6: Electric Oven Plate 3.7: Tachometer ... Continue reading---
LIST OF FIGURES - [ Total Page(s): 1 ]LIST OF FIGURESFigure No Figure 2.1: Maize Sheller Figure 2.2: Hand Maize Sheller Figure 2.3: Groundnut Thresher Figure 2.4: Manual Operated Groundnut Decorticator (Oscillating Type) Figure 2.5 Power Operated Groundnut Decorticator ... Continue reading---
TABLE OF CONTENTS - [ Total Page(s): 1 ]TABLE OF CONTENTSCover Page Title Page Certification Dedication Acknowledgements Abstract Table of Contents List of Tables List of Figures List of Plates CHAPTER ONE: INTRODUCTION 1.1 Background to the Study 1.2 Statement of the Problems 1.3 Objective of the Project 1.4 Justification of the Project 1.5 Scope of the Study CHAPTER TWO: LITERATURE REVIEW 2.1 Physical Properties of Groundnut 2.1.1 Determination of Size 2.1.2 Determi ... Continue reading---
CHAPTER ONE - [ Total Page(s): 2 ]CHAPTER ONEINTRODUCTION1.1 Background to the StudyGroundnut (Arachis hypogaea) is a species in the legume or beans family (Ashish and Handa, 2014; Atiku et al., 2014). It was first cultivated in Peru. Its seed contain about 63% carbohydrate, 19% protein and 6.5% oil. Groundnuts are grown in tropical and subtropical climate regions and warmer parts of temperature regions and it is low growing annual plant and has a variety of uses. Prior to its usage however groundnut need to undergo pr ... Continue reading---
CHAPTER THREE - [ Total Page(s): 12 ]Therefore, minimum energy required to shell a groundnut kernel = 2.84Kg/ms.Power Requirement From, P = (2л NT)/60 (Khurmi et al2005.;) (3.6)WhereР= Power N = Seed (rpm) T = Applied torqueAlso, T = F rWhere F = Force exerted r = Radius of force exertedP = "2 л NT" /"60" P ... Continue reading---
CHAPTER FOUR - [ Total Page(s): 2 ]CHAPTER FOUR4.0 RESULTS AND DISCUSSION4.1 ResultsThe raw data for physical properties is as presented in Appendix A while the summary of the results is as presented in table 4.1.The raw data obtained from the experiment is as reported in Appendix B and the means values of the results is as presented in table 4.2. ... Continue reading---
CHAPTER FIVE - [ Total Page(s): 1 ]CHAPTER FIVE CONCLUSIONS AND RECOMMENDATIONS5.1 Conclusions The following conclusion can be drawn from the performance carried out on groundnut decorticator. 1. The lower the knuckle length of the operator the higher the threshing efficiency of the operator. 2. The lower the weight of the operator the higher the throughput capacity of the machine.3. The average performance of the thresher at average operating speed of 245.4pm are threshing efficiency 56%, unthreshe ... Continue reading---
REFRENCES - [ Total Page(s): 1 ]REFERENCESAdewunmi, T. (2000) Performance Evaluation of a Locally Developed Maize Sheller with Husking and Winnowing Capacity Proceeding of the NIAE. Pp. 68-73.Afosie, V.N., Akinhanm, T.F. and Ojiodu, C.C. (2009) Proximate Analysis and Physio-Chemical Properties of Groundnut.Ashish S. Raghtafe and Dr. C. C. Handa (2014): “Design consideration of Groundnut Sheller machineâ€. Department of Mechanical Engineering, KDK College of Engineering, Nagpu. International Journal of Innovative R ... Continue reading---
