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Mechanical Engineering

Osama Khayal

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    35
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About Osama Khayal

  • Rank
    Member
  • Birthday 01/01/1966

Profile Information

  • Gender
    Male
  • Location
    Atbara, Sudan
  • Interests
    Teaching subjects like thermodynamics, fluid mechanics, mechanics of materials, heat and mass transfer, thermal power plants, instrumentation, control engineering ...etc. in mechanical, civil and production departments
  • Present Company
    Nile Valley University
  • Designation / Job Title
    professor associate
  • Highest Qualification
    doctorate of mechanical engineering in mechanics of materials
  • Year of completition
    2017
  • Engineering Qualification
    master of engineering in mechanical engineering
  • Year of completition
    2003
  • Name of Institute
    Nile Valley University

More Information

  • Project Undertaken
    nonlinear analysis of rectangular laminated composite plates
  • Achievement /recognition/ Certifications
    Authored many research papers and books in international institutions

Recent Profile Visitors

441 profile views
  1. Wind is a form of renewable energy, which is always in a non-steady state due to the wide temporal and spatial variations of wind velocity depending on atmospheric pressures. Data concerning wind speed in different regions in Africa have been compiled, evaluated and presented in this article. In order to estimate the actual available wind power, wind observations over several decades from dense station networks or high resolution wind modeling would be required. Both are not available in Africa. Therefore, for this study the potential wind power energy has been estimated instead. It is based o
  2. I hope that my topics will be beneficial for you

  3. Compared to the rest of the world, there is a general shortage of energy related information in Africa (on potential of energy resources, actual installed systems and current energy use). This lack of information is even more apparent for renewable energies. It is indeed difficult to compare the potentialities for the different energy options due to the scattered validated information. Nevertheless, available data sources are in agreement in describing a difficult situation as far as access to energy is concerned. The high share of rural population, coupled with the low ability and willin
  4. Sudan loss of its oil rich south in 2011 made it realize the significance of renewable energy. Present huge energy demands particularly from the residential and agricultural sectors are causing more pressure on Sudan already crippling economy. For a country like Sudan, solar energy according to the study acquires a huge potential in terms of contributing to the energy sector and development of the country altogether. However, the study also identifies how solar energy potential is being challenged by country lack of incentives and current policies. With present circumstances, off-grid solar en
  5. Utilization of renewable energy resources not only generates useful energy but also aids in climate change mitigation. Energy development in Sudan has always been slow and the current generation only covers less than half of the total demand. Although multiple renewable energy resources are available, but due to the low economy all the types of energy systems cannot be developed together. The government seems to be perplexed in choosing the best among the alternatives as all the alternatives seems to be important and feasible. It becomes very important to prioritize them based on the populatio
  6. The production of biogas from anaerobic digestion (AD) is widely used by modern society for the treatment of livestock manure and slurries. The aim is to produce renewable energy and to improve their fertilizer quality. In countries with significant agricultural production, the strengthening of environmental legislation and regulation of manure and vegetable wastes recycling increased the interest for AD as a cheap and environmental friendly solution. Latest developments in Europe, USA and other parts of the world have shown increasing interest among farmers to cultivate energy crops, used as
  7. The benefits and advantages of an evaporative cooler, also known as swamp cooler, air cooler, or desert cooler include inexpensive price and lower energy consumption, as well as easier and inexpensive installation and maintenance, when compared to traditional air conditioners; and suitability for use in dry and arid climates, especially during hot and dry weather conditions. On the other hand, the disadvantages of an evaporative cooler center primarily on the negative impacts of too much humidification. These disadvantages translate further to more specific limitations and drawbacks. For
  8. Biogas systems turn the cost of waste management into a revenue opportunity for farms, dairies, and industries. Converting waste into electricity, heat, or vehicle fuel provides a renewable source of energy that can reduce dependence on foreign oil imports, reduce greenhouse gas emissions, improve environmental quality, and increase local jobs. Biogas systems also provide an opportunity to recycle nutrients in the food supply, reducing the need for both petrochemical and mined fertilizers. The present paper gives a complete idea on the prospective technology for the production of clean e
  9. Fracture is a problem that society has faced for as long as there have been man-made structures. The problem may actually be worse today than in previous centuries, because more can go wrong in our complex technological society. Major airline crashes, for instance, would not be possible without modern aerospace technology. Fortunately, advances in the field of fracture mechanics have helped to offset some of the potential dangers posed by increasing technological complexity. Our understanding of how materials fail and our ability to prevent such failures have increased considerably since Worl
  10. Strength of materials, also called mechanics of materials, deals with the behavior of solid objects subject to stresses and strains. The complete theory began with the consideration of the behavior of one and two dimensional members of structures, whose states of stress can be approximated as two dimensional, and was then generalized to three dimensions to develop a more complete theory of the elastic and plastic behavior of materials. An important founding pioneer in mechanics of materials was Stephen Timoshenko. The study of strength of materials often refers to various methods of calculati
  11. This research article introduces basic concepts of stiffness and strength underlying the mechanics of fiber reinforced advanced composite materials. This aspect of composite materials technology is sometimes termed as micromechanics, because it deals with the relations between macroscopic engineering properties and the microscopic distribution of the material constituents, namely the volume fraction of fiber. This research paper will deal primarily with unidirectional reinforced continuous fiber composites, and with properties measured along and transverse to the fiber direction. MECHANICAL
  12. The method of dynamic relaxation in its early stages of development was perceived as a numerical finite difference technique. It was first used to analyze structures, then skeletal and cable structures, and plates. The method relies on a discretized continuum in which the mass of the structure is assumed to be concentrated at given points (i.e. nodes) on the surface. The system of concentrated masses oscillates about the equilibrium position under the influence of out of balance forces. With time, it comes to rest under the influence of damping. The iterative scheme reflects a process, in whic
  13. The vehicle is one of the most common machines in use today, and it is no exaggeration to state that it is crucial to the economic success of all the developing and developed nations of the world and to the quality of life of their citizens. The vehicle itself consists of thousands of component parts, many of which rely on the interaction of their surfaces to function. There are many hundreds of tribological components, from bearings, pistons, transmissions, clutches, gears, to wiper blades, tires, and electrical contacts. The application of tribological principles is essential for the reliabi
  14. This research study has been done in Aljabalein Power Plant at White Nile State. The objective of the study is to compare and differentiate between two types of fuel, light fuel oil (LFO) and crude oil (CRO) used in power plant situated in Aljabalein site. The comparison has been done on different viewpoints including the impact of exhaust gases on the surrounding environment, the performance of engines at different loads, and the operation and maintenance costs. It is found that CRO fuel oil is preferred to LFO fuel due to less operation costs. But it has many disadvantages such as hi
  15. The article presents a brief outline of the history of Bajaj rickshaw vehicles industry. Vehicle design, the incorrect usage of petrol and lubricating oil mixture, safety risks in riding rickshaw, and environmental impact were integral activities. Almost all of the engine designers mentioned in the article also were automobile designers, and a few went on to become major manufacturers of automobiles. All of these inventors and more made notable improvements in the evolution of the Bajaj rickshaw vehicles. Literature Review on The History of Bajaj Rickshaw Vehicles.pdf
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