Adebayo Ogundare

University of Lagos | Unilag · Department of Mechanical Engineering

There are environmental concerns on the use of synthetic binders for the production of particle boards. This has stimulated interest in developing boards which do not require the use of these binders but derive adhesion from the activation of the natural chemical constituents of the materials used in manufacture of the boards. Due to the complex na...

Biomass from agriculture is a promising alternative fuel due to its carbon-neutral feature. However, raw biomass does not have properties required for its direct utilization for energy generation. Torrefaction is considered as a pretreatment method to improve the properties of biomass for energy applications. This study was aimed at investigating t...

Mitigating environmental concerns of climate change and global warming requires renewable and sustainable alternatives to reduce over-reliance on fossil fuels. Cleaner production practices have adopted the use of renewable alternatives to energy and material development with biomass playing a key role. With increasing potential of biomass technolog...

Background Helicopter usage and monitoring system (HUMS) is one of the critical systems for helicopter’s safety and reliability. Whilst HUMS has proven to be effective in detecting gears’ defects, bearing failures are not adequately detected using current monitoring indicators. Detection of bearing faults in helicopter gearboxes is made challengin...

Delonix regia has good potential for medicinal, nutritional, and energy applications. However, the manual process of decorticating Delonix regia is labor‐intensive, slow, and tedious. Mechanization of the decorticating process would be of value to its utilization for medicinal, food, feed, or fuel purposes. In this study, preliminary compressive st...

Reduced moisture content enhances storage properties of agricultural products and reduces post-harvest losses. Effective drying can be achieved using solar dryers in regions with abundant solar radiation. In this study, a natural draft mixed-type solar dryer suitable for rural communities of developing countries was developed. The performance of th...

During end milling operation, the residual stresses are developed from two sources: plastic deformation of workpiece material and thermal energy generated. These two sources of residual stresses are often combined as one toward prediction of the efficient combined milling parameters which consequently minimised the residual stresses induced in the...

The use of biomass is becoming increasingly important as an alternative energy resource, particularly for developing countries. The conversion of solid biomass to gaseous forms by the use of gasifiers has some prospects for domestic and industrial utilization. Improved cook-stoves based on gasification are considered to be cost-effective means of e...

Extruders have found application in the food, polymer and pharmaceutical industries. Rheological characteristics of materials are important in the specification of design parameters of screw extruders. Biopolymers, which consist of proteins, nucleic acids and polysaccharides, are shear-thinning (pseudoplastic) within normal operating ranges. Howeve...

The availability of potable water is a necessity for human existence. A simple laboratory scale solar water still capable of holding 75 litres of water has been developed and evaluated. The highest temperature in the solar still occurred at the vapour region and reached up to 66°C. The productivity of the solar still varies with the depth of water...

Almond seed extraction from whole kernel recovery is a process which is usually performed manually thus making it laborious and time consuming. The purpose of this paper is to investigate a means for almond seed extraction for whole kernel recovery to close the gap in domestic, commercial and industrial demand of almond seeds for food and industria...

In most cases the helicopter transmission system comprises of the main gearbox (MGB), auxiliary gearbox (AGB), intermediate gearbox (IGB) and tail rotor gearbox (TGB). A local gear fault will impose a force variation in the gearbox and changes the gear angular velocity resulting in frequency modulations, which in turn generates sidebands and change...

In this work, a variable size nut cracking machine has been designed, constructed and tested to improve the efficiency of shelling operation of quite a number of nuts. The machine is designed to be adaptable to the cracking requirements of some number of nuts, whose shell can be processed to brittleness. The machine performs two operations: shellin...