الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Energy is one of the building blocks of modern society. Once an importer of oil and gas, Egypt is now struggling to meet its own energy needs. In oil industry there is an energy problem due to fuel and electricity consumption in a way that reduces the net profit. There are also environmental problems due to carbon dioxide emissions which are major source of the global warming problem. As Egypt is blessed with geographic location in the Sun Belt area with 325 days of sun in a year, solar energy can be used as a source of energy that reduces fuel consumption and CO2 emissions. The current thesis presents solar energy heating system that can be used for heating applications in some oil industry units. The study has been divided in two parts, the first one concerned with choosing the most appropriate solar system that can be used in such applications. Four different mathematical models for prediction of optical efficiency and thermal losses for the chosen system have been analyzed. The four models have been also computerized using excel sheet program. Numerical comparison and also experimental validation of the selected model have been done. For that paper under title of “Evaluation of Mathematical Models for Solar Thermal System” has been published in October, 2016, American Journal of Energy Science. Visual basic program is then done for the validated model for good and friendly user interface.
The second part of the study presents an economic evaluation for providing feasibility and reliability conception about using the proposed system in some oil industry applications in number of Egyptian companies as preheating of crude oil for desalting in oil production (Khalda Petroleum Company) , preheating of viscous oil for transportation enhancing , preheating of boiler feed water (Cairo Oil Refining Company) and Preheating of percent of crude oil feed before atmospheric distillation .The results show that payback period for crude preheating before desalting is 28 years , for fuel oil preheating is 7.5 years , for boiler feed water preheating is 7.7 years and for Preheating of percent of crude oil feed before atmospheric distillation is 11.6 years .The economic study has been published under title of “Application of Solar Energy Heating System in Some Oil Industry Units and its Economy” in July, 2017, Journal of Fundamentals of Renewable Energy and Applications