International Journal for Service Learning in Engineering, Jan 5, 2008
Abstract-The end users of biogas systems in most cases are farmers whose technical knowledge of t... more Abstract-The end users of biogas systems in most cases are farmers whose technical knowledge of the systems is limited. It is therefore important that material be availed to them which can assist them in making the decision whether to proceed with installation or not without having to hire professionals at a very early stage. The objectives of this study were to develop literature that could be used by laymen to assess the viability of installing biogas units and to size the biogas units with reference to a selected numbers of cows. A number ...
Innovative Systems Design and Engineering, Jan 25, 2012
This work presents a numerical model developed to simulate and optimize the dynamic stress of mul... more This work presents a numerical model developed to simulate and optimize the dynamic stress of multistage spur gears. The model was developed by using the Lagrangian energy method and modified Heywood method, and applied to study the effect of three design variables on the dynamic stress on the gears. The first design variable considered was the module, and the results showed that increasing the module resulted to increased dynamic stress levels. The second design variable, pressure angle, had a strong effect on ...
AbstractThis work presents a numerical model developed to simulate the dynamics and vibrations o... more AbstractThis work presents a numerical model developed to simulate the dynamics and vibrations of a multistage tractor gearbox. The effect of time varying mesh stiffness, time varying frictional torque on the gear teeth, lateral and torsional flexibility of the shafts and flexibility of the ...
Abstract—A mathematical model for determining the overall efficiency of a multistage tractor gear... more Abstract—A mathematical model for determining the overall efficiency of a multistage tractor gearbox including all gear, lubricant, surface finish related parameters and operating conditions is presented. Sliding friction, rolling friction and windage losses were considered as the main sources of power loss in the gearing system. A computer code in FORTRAN was developed to simulate the model. Sliding friction contributes about 98% of the total power loss for gear trains operating at relatively low speeds (less than 2000 rpm input speed). ...
International Journal for Service Learning in Engineering, Jan 5, 2008
Abstract-The end users of biogas systems in most cases are farmers whose technical knowledge of t... more Abstract-The end users of biogas systems in most cases are farmers whose technical knowledge of the systems is limited. It is therefore important that material be availed to them which can assist them in making the decision whether to proceed with installation or not without having to hire professionals at a very early stage. The objectives of this study were to develop literature that could be used by laymen to assess the viability of installing biogas units and to size the biogas units with reference to a selected numbers of cows. A number ...
Innovative Systems Design and Engineering, Jan 25, 2012
This work presents a numerical model developed to simulate and optimize the dynamic stress of mul... more This work presents a numerical model developed to simulate and optimize the dynamic stress of multistage spur gears. The model was developed by using the Lagrangian energy method and modified Heywood method, and applied to study the effect of three design variables on the dynamic stress on the gears. The first design variable considered was the module, and the results showed that increasing the module resulted to increased dynamic stress levels. The second design variable, pressure angle, had a strong effect on ...
AbstractThis work presents a numerical model developed to simulate the dynamics and vibrations o... more AbstractThis work presents a numerical model developed to simulate the dynamics and vibrations of a multistage tractor gearbox. The effect of time varying mesh stiffness, time varying frictional torque on the gear teeth, lateral and torsional flexibility of the shafts and flexibility of the ...
Abstract—A mathematical model for determining the overall efficiency of a multistage tractor gear... more Abstract—A mathematical model for determining the overall efficiency of a multistage tractor gearbox including all gear, lubricant, surface finish related parameters and operating conditions is presented. Sliding friction, rolling friction and windage losses were considered as the main sources of power loss in the gearing system. A computer code in FORTRAN was developed to simulate the model. Sliding friction contributes about 98% of the total power loss for gear trains operating at relatively low speeds (less than 2000 rpm input speed). ...
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Papers by James Kuria