Dr. Okechukwu Desmond Amaefule
Dr. Okechukwu Desmond Amaefule is a READER in AGRICULTURAL AND BIORESOURCES Department, Faculty Of Engineering in Nnamdi Azikiwe University
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Staff Profile
Engr. Dr. Desmond Okechukwu Amaefule; a Reader in Agricultural and Bioresources Engineering department NAU Awka, with BEngr. in Agricultural Engineering (UNN), MSc in Industrial Engineering (UI) and PhD in Agricultural and Bioresources Engineering (Power and Machinery Option) UNIZIK. I have over 7 years hands-on industrial work experience in diverse Mechanized Farms and Agro-processing outfits, and 13 years working experience as lecturer.
Personal Information
Email: | |
Phone: | |
Address: | Agricultural And Bioresources, Faculty Of Engineering, Nnamdi Azikiwe University, Awka. |
Faculty/Unit: | FACULTY OF ENGINEERING |
Department/Sub-Unit: | AGRICULTURAL AND BIORESOURCES |
Social Profiles
Academic Qualifications
| Degrees / Basic Certificates | |
|---|---|
| 1 | Nnamdi Azikiwe University, Awka.. (Post-Graduate Degree, August, 2018) April, 2008 to August, 2018 |
| 2 | University of Ibadan, Ibadan Oyo State.. (Master Degree, July, 1997) October, 1994 to July, 1997 |
| 3 | University of Nigeria, Nsukka Enugu State. (Bachelor Degree, December, 1986) October, 1981 to August, 1986 |
| 4 | Umudim Secondary School Ikeduru L.G.A., Imo State.. (GCE, November, 1981) September, 1977 to July, 1981 |
Relevant/Working Experience
| 1 | Senior Lecturer, Nnamdi Azikiwe University, Awka Anambra State October, 2018 to Present |
| 2 | Lecturer I, Nnamdi Azikiwe University, Awka Anambra State October, 2012 to September, 2018 |
| 3 | Lecturer II, Nnamdi Azikiwe University, Awka Anambra State December, 2008 to September, 2012 |
| 4 | Assitant Lecturer, Nnamdi Azikiwe University, Awka Anambra State December, 2007 to December, 2018 |
| 5 | Technical Director, Adonai Agro-Allied industries Awka, Anambra State December, 2002 to March, 2007 |
| 6 | Plant Manager, Envoy Oil Industries Ltd, Onitsha Anambra State June, 2001 to November, 2002 |
| 7 | Consultant Engineer, Envoy Oil Industries Ltd, Onitsha Anambra State March, 2000 to May, 2001 |
| 8 | Plant Supervisor, Golden Oil Industries, Onitsha Anambra State March, 1999 to May, 1999 |
| 9 | Shift Engineer, R. O. Ikoro and Sons Ltd Owerri Imo State August, 1998 to September, 1998 |
| 10 | Production Engineer, Vico Agro-Allied Industries Omogho, Orumba N. L.G.A. Anambra State September, 1993 to January, 1995 |
| 11 | Plant Supervisor, Tip Top Industries (Nig.) Ltd. Ikeja June, 1991 to September, 1993 |
| 12 | Agric. Engineer, Afcott Cotton Pojects Ngurore Yola, Adamawa State May, 1988 to May, 1991 |
| 13 | N.Y.S.C, Teacher, Govt. Sec. Sch. Mubi, Adamawa State December, 1986 to November, 1987 |
Creative Output
| Book Chapters | |
|---|---|
| 1 | Nwajinka C. O., Onuegbu C. U., Amaefule D. O.. (2021, February) Characteristics of Afzelia africana Seed Under Compressive Loading: An Emperical Study Book Publisher International, Vol. 7, pp 67-79 |
| Journal Articles | |
| 1 | Amaefule Desmond, Nwajinka Charles, Okpala Chukwunonso. (2025, March), "Predicting the Optimal Replacement Time for Farm Power and Machinery Using A Computer Programme", UNIZIK Journal of Technology, Production and Mechanical Systems, Vol. 5, (Issue 1), pp 203-215 |
| 2 | Chukwuneke J. L., Okechi L. E., Amaefule D. O., Unegbu C. I., Ekechi A. T., Egbuna I. C., Osazuwa O. K.. (2025, April), "Effects of Ambient Conditions on the Performance of Gas Turbine: A Parametric Analysis", UNIZIK Journal of Technology, Production and Mechanical Systems, Vol. 6, (Issue 1), pp 285-297 |
| 3 | Amaefule Desmond, Nwajinka Charles, Mbegbu N. N., Okpala Chukwunonso. (2025, June), "Effects of Drying Temperatures on Nutritional and Phytochemical Properties of Gongronema latifolium Leaves", Arid Zone Journal of Engineering Technology and Environment, Vol. 21, (Issue 2), pp xxxx-xxxx, Accepted for publication in June 2025 volume. Acceptance note added to 1st page of write up. |
| 4 | Anonye O. F., Nwajinka C. O., Okpala C. D., Amaefule D. O., Nwachukwu C. P. Chinwuba C. J., Akwuobi S. I.. (2024, September), "Determination of the Effect of Steeping and Blanching Pretreatments and Drying Temperatures on the Proximate Properties of White-fleshed Sweet Potato Variety.", International Journal of Engineering Research and Science, Vol. 10, (Issue 9), pp 46-55 |
| 5 | Nwonye C. A., Akpado K., Amaefule D. O.. (2024, May), "Development of Specie-specific Bird Deterrent System Using Birds Classification by Convolutional Neural Network (CNN) Model", International Journal of Engineering Research and Science, Vol. 10, (Issue 5), pp 7-18 |
| 6 | Nwonye C. A., Akpado K. A., Alumona T. L., Oguejiofor O. S., Amaefule D. O.. (2024, September), "Monitoring of Migration of Harmful Sparrow Birds in a Rice Farm Using Convolutional Neural Network (CNN) Model", Unknown Journal or Publisher, Vol. 3, (Issue 4), pp 1144-1162 |
| 7 | Nwonye C. A., Eze C. E., Akpado K. A, Amaefule D. O.. (2024, April), "A Convolutional Neural Network Model for Harmful Birds Recognition and Deterrent in a Dynamic Rice Farm Associated with Bird Migration and Climate Changes", International Journal of Engineering Applied Sciences and Technology, Vol. 8, (Issue 12), pp 371-379 |
| 8 | Amaefule D., Nwakaire J., Ogbuagu J, Anyadike C., Ogenyi C., Ohagwu C., Egbuhuzor O.. (2023, April), "Effect of Production Factors on the Bioethanol Yield of Tropical Sawdust", International Journal of Energy Research, Vol. 2023, (Issue 9983840) |
| 9 | Chukwumuanya E. O., Abonyi S. E., Amaefule D. O.. (2023, April), "Modeling of 2-D Computer Aided Drafting Application for Teaching and Learning Engineering Drawing", International Journal of Trend in Scientific Research and Development, Vol. 7, (Issue 2), pp 1011-1021 |
| 10 | Ohagwu C. J., Amaefule D. O. and Nwakaire J. N.. (2023, August), "Modification and Performance Evaluation of A Push-type Liquid Chemical Sprayer", Journal of Agricultural Engineering and Technology, Vol. 28, (Issue 2), pp 58-67 |
| 11 | Okpala C D, Onuegbu C U, Nwajinka C O, Ogbuagu N J, Amaefule D O. (2023, June), "Modeling and optimization of effects of chemically and biologically synthesized Nano-Fe2O3 supplemented feeds on growth and hematological parameters of African Catfish (Clarias Gariepinus)", Indian Journal of Engineering, Vol. 20, (Issue 53), pp 1-8 |
| 12 | Nwatu I. E., Nwajinka C. O., Muochebe B. A., Amaefule D. O.. (2022, July), "Optimized Supplementation Ratio of Wheat Flour and African Yam Bean Flour for Best Possible Bread Specific Volume and Crumb Hardness in Nigeria.", Int J Envir and Agri Res (IJOEAR), Vol. 8, (Issue 7), pp 48-56 |
| 13 | Ikeogu D. O., Amaefule D. O., Nwajinka C. O., Chukwumuanya E. O.. (2022, May), "Cost-Prediction Models for Managing Transmission Units of Locally-Fabricated Palm Fruit Digesters.", International Journal of Environment and Agricultural Research (IJOEAR), Vol. 8, (Issue 5), pp 11-18 |
| 14 | C.J. Ohagwu, J.N. Nwakaire, D.O. Amaefule, C.D. Nwaezeh, C.N. Anyanwu. (2022, June), "Physicomechanical and fuel properties of sawdust briquettes using Abelmoschus esculentus waste as a binder.", Agricultural Engineering International: CIGR Journal, Vol. 24, (Issue 2), pp 83-94. |
| 15 | Ikeogu D. O., Amaefule D. O., Nwajinka C. O., Mbachu V. M.. (2022, May), "Cost-Effective Replacement Decision for The Transmission Unit of Locally Fabricated Palm Nut Digester.", International Journal of Engineering Research and Science, Vol. 8, (Issue 5), pp 36-42, member of CrossRef USA |
| 16 | Mbegbu N. N., Nwajinka C. O., Amaefule D. O.. (2021, January), "Thin Layer Drying Models and Characteristics of Scent Leaves (Ocimum gratissimum) and Lemon Basil Leaves (Ocimum africanum).", Heliyon, Vol. 7, (Issue 1), Scopus-indexed Journal |
| 17 | Nwajinka C. O., Okonjo, E. O., Amaefule D.O., Okpala, C. D.. (2020, July), "Effects of Microwave Power and Slice Thickness on Fiber and Ash Contents of Dried Sweet Potato (Ipomoea batata).", Nigerian Journal of Technology, Vol. 39, (Issue 3), pp 932-941 |
| 18 | Amaefule D.O., Nwajinka C. O., Matthias B. A.. (2019, January), "Driving Rural Development Through Mechanized Farming Ventures; A Nigerian Case Study", International Journal of Applied Science and Engineering, Vol. 7, (Issue 2), pp 54-58 |
| 19 | Amaefule D. O., Oluka S. I., Nwuba E. I. U.. (2018, January), "Tillage Machinery Selection Model for Combined Non-Contiguous Farms", Journal of Engineering and Applied Sciences (JEAS), Vol. 14, (Issue 1), pp 13-25 |
| 20 | Amaefule D. O., Oluka S. I., Nwuba E. I. U.. (2018, January), "A Machinery Capacity Selection Model for Tillage Operations In Nigeria", Journal of Engineering and Applied Sciences (JEAS), Vol. 14, (Issue 1), pp 1-12 |
| 21 | Nwajinka C. O., Onuegbu C. U., Amaefule D. O.. (2017, July), "Emperical Study of The Characteristics of Afzelia africana Seed Under Compressive Loading", Nigerian Journal of Technology, Vol. 36, (Issue 3), pp 973-978 |
| 22 | Chukwuma E. C., Orakwe L. C., Anizoba D. C., Amaefule D. O., Odoh C. C., Nzediegwu C.. (2015, January), "Geo-Electric Groundwater Vulnerability Assessment of Overburden Aquifers At Awka In Anambra State, South-Eastern Nigeria.", European Journal of Biotechnology and Biosciences, Vol. 3, (Issue 1), pp 29-34 |
| 23 | Ndukwe K. S., Nwuba E. I. U., Nwajinka C. O., Ngwangwa N. V., Amaefule D. O.. (2014, January), "Moisture dependent properties of unshelled Moringa oleifera seed", International Journal of Agriculture and Biosciences, Vol. 3, (Issue 4), pp 149-157 |
| 24 | Umeh S. O., Umerie S. C., Amaefule D. O.. (2013, January), "Cassava Seed as An Alternative Oil Seed for Production of A Local Food Seasoning Ogili.", International Journal of Applied Sc. and Engineering, Vol. 1, (Issue 2), pp 69-72 |
| 25 | Ezeonu S. O., Amaefule D.O., Okonkwo G. N.. (2013, January), "Construction and testing of ultrasonic and sonic bird repeller.", Journal of Natural Sciences Research, Vol. 2, (Issue 9), pp 8-17 |
| 26 | Nwabanne J. T., Amaefule D. O.. (2010, September), "Pyrolysis of rice husks using locally fabricated pyrolysis plant.", Chemical Society of Nigeria Anambra State Chapter (ANACHEM) Journal, pp 707-714 |
| 27 | Ezeonu S. O., Amaefule D.O., Okonkwo G. N.. (2010, January), "An Environment Friendly Solar Powered Ultrasonic And Sonic Bird Repeller For Rice Farm Applications", Nigerian Journal of Solar Energy, Vol. 20, pp 28-32 |
| 28 | Okonkwo J. C., Amaefule D.O., Egu E. N.. (2010, January), "Relationship Between Body Weight and Other Biometric Characteristics of The Nigerian Goat Breeds", International Journal of Animal Science, Vol. 2, (Issue 2), pp 102-106 |
| 29 | Umeghalu I.C.E., Amaefule D.O.. (2009, January), "The Challenge Of African Rice Gall Midge To Rice Production In The Omasi Rice Ecosystem Anambra State, Nigeria", Journal of Engineering and Applied Sciences (JEAS), Vol. 4, (Issue 2), pp 134-138, google scholar indexed |
| Projects | |
| 1 | Amaefule, D. O.. (2019, October), "Melon Shelling and Separating Machine". |
| 2 | Amaefule, Desmond Okechukwu. (2019, October), "Design of Continuous Process Horizontal palm Nut Digester". |
| 3 | Amaefule, D. O.. (2004, March), "Process and Equipment Redesign of a Batch-Type Custard Mixer". , The redesign gave improved performance |
| Conference Papers | |
| 1 | Nwakaire J. N., Ohagwu C. J., Uyanna A. T., Amaefule D.O. (2021, February), "Life cycle study on the energy and environmental assessment of rice husk briquette as an alternative to fuel wood in Nigeria. Paper presented at International Conference on Engineering for Sustainable Development Conference, University of Nigeria, Nsukka", |
| 2 | Chukwuma E. C., Anizoba, D. C., Orakwe, L. C., Amaefule D. O.. (2020, July), "Delineating Groundwater Aquifer Using Geo-electrical Data: A Case Study of Ogwashi-Asaba Formation in Anambra State of Nigeria. Paper presented at the 2020 ASABE International Meeting Omaha, Nebraska USA", |
| 3 | Chukwuma E. C., Nwoke A. O., Amaefule D. O.. (2019, July), "Gross Electrical Energy Production Potential from Agricultural Waste: A GIS Base Assessment of Anambra State of Nigeria. Paper presented at the 2019 ASABE International Meeting Boston Massachusetts USA", |
| 4 | Amaefule D. O., Matthias B. A., Umeghalu I. C. E.. (2012, August), "Promoting Rural Development Through Mechanized Farming Ventures; A Nigerian Case Study. Proceedings of National Conference on Infrastructural Development and Maintenance in the Nigerian Environment, Nnamdi Azikiwe University Awka, Nigeria.", |
| 5 | Okonkwo J. C., Amaefule D.O., Egu E. N.. (2010, February), "Relationship Between Body Weight and Other Biometric Characteristics of The Nigerian Goat Breeds. Proceedings of International Conference on Agricultural Research and Development, World Congress on Research and Development, Port Harcourt, Nigeria.", |
| 6 | Ezeonu S.O., Amaefule D.O.. (2009, September), "An Environment Friendly Solar Driven Ultrasonic and Sonic Bird Repeller for Rice Farm Applications. a paper presented at the 2nd South East … NIAE Conference", |
| 7 | Nwabanne J. T., Amaefule D.O.. (2009, September), "Pyrolysis of Rice Husks Using Locally Fabricated Pyrolysis Plant. a paper presented at the 2nd South East … NIAE Conference", |
| 8 | Ngini J.O., Nwajinka C.O., Amaefule D.O.. (2008, August), "Increasing Cotton Production in Nigeria Through Extensive Use of Machinery and Equipment-A Study of the Field Operations of Afcott Cotton Projects Ngurore Yola (1988-1991) – Book of Abstracts1st South East Zonal Conf. of the Nigerian Institution of Agri", |
| Technical Reports | |
| 1 | Amaefule D.O.. (2018) Modelling Farm Machinery Selection For Scattered Farms Using Minimum-cost Method –( Unpublished PhD Dissertation in Agricultural Engineering Presented to the School of Postgraduate Studies NAU Awka) |
| 2 | Amaefule D.O.. (2016) Agricultural Mechanization Modules. Lecture delivered at the Anambra State Agricultural Development Project (ASADAP) Monthly Field Technical Review Meeting |
| 3 | Amaefule D. O.. (2000) Comparative Study of the Quotations for a Complete Solvent Extraction Plant (SEP) Options -A Consultant Critique of Complete SEP Quotations Options Sent to Chief Ojimba Anyaoha and Sons (Nig.) Ltd, Onitsha from Andreotti Impianti SPA, Italy and Oilex Engi , A Consultant Critique of Complete SEP Quotations Options Sent to Chief Ojimba Anyaoha and Sons (Nig.) Ltd, Onitsha from Andreotti Impianti SPA, Italy and Oilex Engi |
| 4 | Amaefule D.O.. (1997) Investigating Production Capacity Utilization –( Unpublished M.Sc. Project Thesis Presented to the Industrial. and Prodn Eng’ring Dept, UI Ibadan) |
| 5 | Amaefule D.O.. (1986) Design of a Biomass Combustion Equipment – (Unpublished B. Engr’ g. Project Thesis Presented to the Agricultural Engineering Dept. U.N.N) |
| Patents | |
| 1 | Chukwumuanya E. O., Abonyi S. E., Amaefule D. O.. "COMPUTER-AIDED APPLICATION SOFTWARE FOR TEACHING AND LEARNING OF ENGINEERING GRAPHICS: NG/PT/NC/2022/6741", (Issued: 2022, December) , NG/PT/NC/2022/6741 Patent-pending Invention |
| Other Relevant Publications | |
| 1 | Amaefule, D. O.. "Automotive Services and Maintenance Work Book", (Others, 2022 September) Awka Nigeria Practicals Manual and Log Book |
| 2 | Amaefule, D. O.. "Agricultural and Bioresources Engineering Field Operations Work Book; ABE 411 Practicals Manual and Log Book", (Others, 2018 October) Agricultural and Bioresources Engineering Department NAU Awka Work book Used in the Department |
Academic Leadership Qualities
| Supervisions | |
|---|---|
| 1 | "Effect of Drying Methods on Nutrients Quality of Some Leafy Vegitables (Ocimum gratissimum, Ocimum africanum and Gongronema latifolium)" (2021). Completed Masters project by Mbegbu, Nkechi N. 2017356001F |
| Grants | |
| 1 | Collaborator: "Production of Ceiling Boards from Reinforced Chicken Feather Composites" (February, 2024). Ongoing sponsored grant by Tetfund Alliance for Innovative Research (TETFAIR)-Innov8 Commercialization Project |
| 2 | Awardee: "Development and Evaluation of Nano-materials As Fish Additives for Enhanced Catfish Production" (June, 2023). Ongoing sponsored grant by Tertiary Education Trust Fund (TETFUND) |
| Editorships | |
| 1 | Editor, "Journal of Engineering and Applied Sciences (JEAS) Faculty of Engineering NAU, Awka" (April, 2021) |
| Reviewerships | |
| 1 | Reviewer, "Processing of Wild Sunflower with Different Moisture Contents into Solid Bio Fuel" (March, 2021) |
| Examinerships | |
| 1 | Examiner, "MEngr Examination; Okonkwo C. C. 2018356004P Agric. and Biores. Engineering" (October, 2018 to July, 2021). Completed Internal-Internal Exam |
| 2 | Examiner, "PhD Examination; Ogbuagu N. J. 2012356002P Agric. and Biores. Engineering" (October, 2012 to November, 2019). Completed Internal-Internal Exam |
| Contributions to the University/Society | |
| 1 | Technical Committee Member, "NIAE International Conference on Innovative Agricultural Mechanization and Rural Development for Economic Transformation and Food Security, Delta State Government House, Asaba." (September, 2022 to September, 2022) |
| 2 | Rapporteur, "NIAE International Conference on Innovative Agricultural Mechanization and Rural Development for Economic Transformation and Food Security, Delta State Government House, Asaba." (September, 2022 to September, 2022) |
| 3 | Member, Adhoc committee on Plagiarism, "Faculty of Engineering, NAU, Awka Anambra State" (January, 2019) |
| 4 | Member, Examination Misconduct committee, "Faculty of Engineering, NAU, Awka Anambra State" (January, 2019) |
| 5 | Resource Person on Mechanization Modules, Monthly Field Technical Review for September 2016, "Anambra State Agricultural Development Project (ASADAP)" (September, 2016 to September, 2016) |
| 6 | Technical Consultant for the Rebuilding of Umuocha Kindred Hall, "Umuocha Addi Abajah, Nwangele Local Government Area Imo State." (January, 2013 to September, 2018) |
| 7 | Secretary General, "Umuocha Kindred Union, Umuocha Addi, Abajah, Nwangele Local Government Area Imo State." (October, 2005 to October, 2013) |
| 8 | Redesigner and Fabricator, "New Life Food Industries Awada Onitsha" (March, 2004 to March, 2004) |
| 9 | Consultant for the Study of A Complete Solvent Extraction Plant Quotation Options, "Chief Ojimba Anyaoha and Sons (Nig.) Ltd, Onitsha" (March, 2001 to March, 2001) |
Membership of Professional/Relevant Bodies
| 1 | Full Member, "Council for the Regulation of Engineering in Nigeria (COREN)" - R. 46,040 (member since 2018), https://www.coren.gov.ng/ |
| 2 | Full Member, "Nigerian Society of Agricultural Engineers (NIAE)" - M1332 (member since 2008), https://www.niae.net/ |
Relevant Events Attended
| Conferences | |
|---|---|
| 1 | "Innovative Agricultural Mechanization and Rural Development for Economic Transformation and Food Security", (The Nigerian Institution of Agricultural Engineers), 20th September, 2022 to 23rd September, 2022; Delta State Government House, Asaba |
| 2 | "Waste In Green Economy for Sustainable Development", (Faculty of Engineering Nnamdi Azikiwe University, Awka), 9th February, 2022 to 10th February, 2022; Nnamdi Azikiwe University, Awka |
| 3 | "Advancing The Frontiers of Engineering Practitioners and Entrenching Professionalism for National Developent", (Council for the Regulation of Engineering in Nigeria), 9th August, 2021 to 11th August, 2021; International Conference Centre (ICC),Abuja |
| 4 | "International Conference on Engineering for Sustainable Development Conference,", (Faculty of Enginering, UNN/Royal Academy Engineering), 3rd February, 2021 to 5th February, 2021; University of Nigeria, Nsukka |
| 5 | "Raw Materials Processing and Utilization for Sustainable Development", (Faculty of Engineering, NAU), 13th August, 2018 to 15th August, 2018; Nnamdi Azikiwe University, Awka Anambra State |
| 6 | "International Conference on Agricultural Research and Development", (World Congress on Research and Development), 10th February, 2010 to 11th February, 2010; Port Harcourt, Nigeria. |
| 7 | "2nd South East Zonal Conf. of the Nigerian Institution of Agricultural Engineers (NIAE)", (Nigerian Institution of Agricultural Engineers (NIAE)), 27th September, 2009 to 29th September, 2009; Abakiliki Ebonyi |
| 8 | "1st South East Zonal Conf. of the Nigerian Institution of Agricultural Engineers (NIAE)", (Nigerian Institution of Agricultural Engineers (NIAE)), 13th August, 2008 to 15th August, 2008; Nnamdi Azikiwe University, Awka Anambra State |
| Workshop | |
| 1 | "Anambra State Agricultural Development Project (ASADAP) Monthly Field Technical Review Meeting", (Anambra State Agricultural Development Project (ASADAP)), 21st September, 2016 to 21st September, 2016; Awka Anambra State |