Engr. Dr. Anthony Ogochukwu Onokwai

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• B.Eng, M.Eng, Ph.D, MNSE, MNMechE, COREN Reg.
• Senior Lecturer at Pan-Atlantic University

This study developed an optimal model for gas turbine power plants (GTPPs) with intercoolers, focusing on the challenges related to power output, thermal efficiency and specific fuel consumption. The study combined response surface methodology (RSM) and central composite design (CCD) with advanced metaheuristic algorithms, including ANFIS, ANFIS PS...

This research delves into the potential of expired Glavox tablets, containing Amoxicillin and Clavulanic acid, as environmentally friendly substances to inhibit corrosion on A36 carbon steel in solutions of 1M HCl and 3.65 wt% NaCl. The findings from weight loss experiments in 1M HCl indicated a decrease in the corrosion rate, dropping from 1.24 mm...

The global energy consumption for household cooking is substantial, comprising approximately 90 % of total household energy usage worldwide. Research indicates that in 2002, food-related energy consumption averaged 340 million BTU (approximately 359 million J) per person. With the current global population exceeding 7 billion, this translates to an...

Efficient steam energy production was essential for reducing energy consumption and operational costs while enhancing productivity, particularly in industrial settings prone to explosions due to boiler parameter control issues. This challenge was especially acute in the food and beverage industry amid rising energy costs and stricter environmental...

This study carried out Bg anaerobic Cd. RSM was employed to investigate the optimum experimental conditions for Bg yield. The input parameters were PD substrates combination, either with WH or GS. Using six different identical 25 L cylindrical digesters, 6 experimental setups of the substrate combinations were carried out, for an incubation time of...

Purpose The current study seeks to investigate and determine the principal barriers to the adoption of work–life balance (WLB) practices amongst construction companies operating in the developing countries using Lagos, Nigeria as a case study. Design/methodology/approach This study adopts a survey research technique. Snowball sampling technique wa...

Drying is the removal of moisture content and other chemical compositions. The study aims to improve the process parameters involved in cassava chip drying. A statistical approach was utilized to evaluate the significance of the drying variables, such as the various cassava species, the drying temperature, and the drying duration, and their influen...

Due to its exceptional mechanical properties, such as its high strength and hardness, high-carbon steel is utilised extensively in various industries. The way of behaving of high-carbon steel is impacted by various handling strategies, for example, hot working and cold working, which can influence its microstructure and mechanical properties. The r...

BM is a renewable organic material obtained from plants and animals. The inability to characterize BM samples prior to the Py process reduces B-O yield quality. This study performed woody (IS and MB) and non-woody (CS and EG) BM samples preliminary characterization, to evaluate their energy potential in Py processing, for improving B-O yield qualit...

Purpose Construction industry is a vital sector for national and economic development of any country. Past studies reveal that the Nigerian construction industry is suffering from buildability problems. Buildability improvement is the duty of every key stakeholder, including designers, builders and clients. This study sets out to determine the prin...

A Palm Kernel Shell (PKS) is an enclosed shell obtained as residue from processing palm kernel. Its regarded as lignocellulosic biomass that serves as an abundant renewable energy source. The thermal and physicochemical behaviour was investigated, and results showed a low Fixed Carbon (FC) (22.60 wt%), high Volatile Matter (VM) (74.60 wt%), and hig...

Purpose Construction industry is a vital sector for economic and national development. However, the industry suffers buildability problems. Improving construction projects buildability is the duty of every key stakeholder. Thus, this study aims to identify and evaluate the project designers’ roles in improving construction projects buildability in...

The search for renewable resources has grown globally as a result of the harmful effects of fossil fuel use on the environment, such as global warming and acid rain. Biomass fuels do not contribute to the accumulation of carbon dioxide in the atmosphere. This study utilised response surface methodology for the optimisation of pyrolysis process para...

The investigation of the characterization of Adansonia digitata biomass from pyrolysis in a fixed-bed tubular carbon steel reactor at temperatures of 400℃ to 700℃. Firstly, proximate, ultimate, and heating value analyses of the raw biomass were obtained prior to experimental runs via the fast pyrolysis process; thereafter, the quality of the bio-oi...

This study deals with a preliminary investigation of biomass samples' physicochemical, structural composition, and thermal properties to aid the appropriate selection of biomass utilized for pyrolysis operation. The proximate, ultimate, structural composition and thermal analyses were conducted using seven lignocellulose biomass samples obtained in...

This paper presents the design and construction of a Guarded Hot Plate (GHP) apparatus for the accurate assessment of thermal conductivities of some Nigerian local building materials. The GHP apparatus is a steady-state measurement device. This apparatus is designed to measure the thermal conductivities of masonry building materials of different co...

This research aims to investigate the effect of thermal and flow properties on the performance of hydropower plants. Hydropower typical parameters such as voltage, current, discharge, and power output were collected hourly between 8:00 am to 5:00 pm from 2017 to 2019 to investigate the effect of pressure head, discharge, and gross head on the effic...

This research deals with the determination of physicochemical and thermal properties of biomass samples to enhance pyrolysis yields. Proximate, ultimate, structural composition, trace elements, and thermal analyses were conducted using fifteen lignocellulose biomass samples obtained in Ajase market, Ajasse Ipo, Kwara State, Nigeria, and Omu-Aran, K...

The chemical composition and microbial burden of freshwater prawn was determined at different storage temperatures (00C, 4±10C, and 28±20C) for 5 days using standard microbiological techniques. Microbial isolates found in freshwater prawn samples include: Staphylococcus aureus, Bacillus spp., Proteus mirabilis, Escherichia coli, Pseudomonas aerugin...

In this study, investigation was done to determine the optimum combination of cow dung (CD) and horse dung (HD) for enhanced biogas production and plant stability. Anaerobic co-digestion of CD and HD at varying percentage combination was carried out in five (5) identical 25 L cylindrical digesters (A-E) for a retention period of 37 days, at an aver...

This study aims at determining the energy content from campus wastes and estimation of electricity generation. Samples of solid wastes generated within Landmark University were collected, separated, classified, dried in the oven at 105°C till constant weight was attained, pulverized and sieved using a sieve size of 500 µm. The moisture contents of...

This research was performed to optimize the performance characteristics of the Nigerian Jebba Hydropower Plant in order to enhance its generation of electricity. Pertinent hydropower data were hourly collected from the plant from 8:00 am to 5:00 pm between 2016 and 2018. The coefficient of determination obtained from the response surface methodolog...

This study examined the effect of the anaerobic co-digestion of chicken feather (CF) and horse dung (HD) on biogas production and yield kinetics. It was carried out in eight (8) experimental designs using eight (8) identical digesters with replication. While Digesters A and B contained 100% HD (6 kg) and 100% CF (6 kg) respectively, C, D and E cont...

Just like other solar cookers, the solar box cooker needs energy gotten from the sun to operate without producing emissions. In this research, a solar box is fabricated to reduce over-dependence on fossil fuel for energy generation. This reduces the environmental degradation caused by the use of other sources of energy. The ASHRAE empirical model w...

The rapid increase in the occurrence of road accidents in Nigeria requires the deployment of real time techniques that is equipped to reduce one of the critical factor that have been identified by the Federal Road Safety cooperation of Nigeria (FRSC) that constitute the major cause of road accidents which is over speeding. This was achieved through...

In Nigeria, plantain chips are in high demand and this demand is not being met by most small scale food industries and shops due to some critical factors. Shops are only able to fulfill approximately two-thirds of the demand. The biggest obstacle towards attaining self-sufficiency in the production of plantain chips is the intensity of labor involv...

Garri processing is a major agricultural and food related activity which leads to waste generation and this waste in turn constitute environmental problems in terms of stench smells and poor hygienic conditions that allow microbes and germs to thrive. Rural dwellers are normally poor thus the payment of electricity bills impoverishes them further....

This research was aimed at investigating the effect of temperature on the rate of drying moisture and cyanide contents of cassava chips using oven drying process. Five varieties of raw cassava (Manihot Esculenta, Crantz) namely TMS 98/0510, TME 419, TMS 97/2205, NR 87184 and TMS 96/1632 were harvested at twelve (12) months after planting (MAP) from...

This dataset contains cellular and geo-spatial information of a 10 km distance along Akure-Ilsha road in Ondo state, Nigeria. The data was acquired using a designed data acquisition system which was kept inside golf3 vehicle interfaced with Acer laptop, the data was acquired as the vehicle moves from the reference point (7.39919, 5.05944) to its de...

In recent years, fossil fuels have been preferably used industrial purposes. Fossil fuels are highly flammable and effective but are very hazardous to the human environment. It is also one of the causes of the ozone layer depletion which humanity is battling presently. Biomass fuels are ma waste materials which have good properties that aid combust...

In recent years, fossil fuels have been preferably used both for domestic and industrial purposes. Fossil fuels are highly flammable and effective but are very hazardous to the human environment. It is also one of the causes of the ozone layer depletion which humanity is battling presently. Biomass fuels are majorly agricultural waste materials whi...

This research tries to find a meeting point that will reduce regenerative chatter which is a prolonged form of chatter under control by modeling the machining process using first order least square full discretization method. A mathematical model was developed to assist to locate the productive spindle speed at which the lobbing effects occur and d...

This research tries to find a meeting point that will reduce regenerative chatter which is a prolonged form of chatter under control by modeling the machining process using first order least square full discretization method. A mathematical model was developed to assist to locate the productive spindle speed at which the lobbing effects occur and d...

Fish cultivation has become a worthwhile business activity, as it promotes food security and poverty eradication in developing countries; however, the feeding processes are done manually in Nigeria. Therefore, to solve the problem associated with manual feeding in aquaculture, an automated fish feeder was designed, fabricated and tested that automa...

An investigation of the effects of poultry droppings (PD) on the anaerobic co-digestion of cassava peels (CP) has been conducted in order to determine the kinetics for optimal biogas production. The laboratory batch anaerobic digestion were carried out in five (5) different ten-litre anaerobic digesters which were used for the fermentation of the s...

The predominant use of fossil and wood energy sources in Nigeria has contributed immensely to environmental pollution and related health challenges; this has prompted an increasing demand for other cleaner and sustainable energy sources such as solar cookers. In this study, design and thermal evaluation of solar box using cheap locally available wa...

This study carried out a comparative analysis of the rates of production of biogas from various organic wastes and weeds which enabled the determination of optimal ratio of poultry droppings to domestic wastes. Digester was prepared for the anaerobic fermentation of the domestic wastes and weeds. The gas production did not begin until the 7th day a...

This study covers development of batch (holding) pasteurization equipment, in this method every milk particle is heated to at least 63°C and held for at least 30 minutes. The frame analysis was performed using computer aided design simulation software. The frame parts were modelled and assembled before being exported to the frame simulation environ...

Software has been developed for stress and Mohr's circle computation, transformation and sensitivity analysis. It is developed to help students visualize the state of stress at a point and to understand the nature and effects of stress transformation which is one of the leading importance phenomena in the field of engineering. The software shows th...

Software has been produced for stress and Mohr's circle computation and transformation. It is produced to help understudies imagine the condition of stress at a point and to comprehend the nature and impacts of stress transformation which is one of the main significance phenomena in the field of designing. The software demonstrates the impact of st...

Energy analysis, thermodynamic second law and Rankine cycle are universal method for enhancing the performance of power plant. Experimental data of 75MW power plant was obtained, mass; energy balance and thermodynamic second law were used to analysis the exergy efficiency while Rankine cycle was used to calculate the overall efficiency of the plant...