Saleh Abughres

University of Tripoli | UOT · Department of Mechanical and Industrial Engineering

بعون الله وتوفيقه وكرمه تم إعداد هذا الكتاب بعنوان"تطبيقات في ميكانيكا الموائع"، ليغطي سبع أبواب غنية بمحتواها الهندسي والتقني، خدمة للعلم والتعليم ونهضة للبلاد، حيث اهتم الباب الأول بتعريف الطبقات الحدية وما يخص التدفق الخارجي على الأسطح المستوية، أمّا الباب الثاني فقد ركز على التدفق الخارجي غير الانضغاطي حول الأجسام المفلطحة. جاء في الباب الثالث...

بسم الله الرحمن الرحيم، الحمد لله الذي بنعمته تتم الصالحات، الحمد لله رب العالمين حمدًا كثيرًا طيبًا مباركًا فيه، على نعمه الوافية ظاهرة وباطنة، والصلاة والسلام على المبعوث رحمة للعالمين، سيدنا وحبيبنا محمد النبي الأميي الأمين، أفصح الناس لسانًا وأوضحهم بيانًا، صاحب العلوم الفاخرة، وعلى آله الأصفياء، وصحبه الأوفياء، والتابعين النجباء، وتابع تابعيهم...

This is a collection of useful equations related to 1-D compressible flow. These are completely presented in chapters 13 and 14 from a textbook. This book is in the final stage of the preprint.

There is no doubt that experimental measurement is the best way to obtain accurate valuable information of the behaviour of a system. However, theoretical approach or simulation modeling can have many advantages over experiment, as we can predict easily (and up to an acceptable accuracy) the performance of systems under varying climatic conditions,...

One of the main problems that negatively affect the operation of salt gradient solar ponds and influence its thermal stability is the maintenance of salt gradient profile Evaporation pond (EP) is designed to generate the salt which is lost by upward salt diffusionfrom the lower convective zone (LCZ) of the solar pond. Another attractive method is t...

One of the main problems that negatively affect the operation of salt gradient solar ponds and influence its thermal stability is the maintenance of salt gradient profile. Evaporation pond (EP) is designed to generate the salt which is lost by upward salt diffusion from the lower convective zone (LCZ) of the solar pond. Another attractive method is...

One of the main problems that negatively affect the operation of salt gradient solar ponds and influence its thermal stability is the maintenance of salt gradient profile. Evaporation pond (EP) is designed to generate the salt which is lost by upward salt diffusion from the lower convective zone (LCZ) of the solar pond. Another attractive method is...

هذا الكتاب هو واحد من 60 كتابا تعاقدت عليها الدولة الليبيةقبل 2995. كل الكتب في تخصص العمل الفني للتعلين\م المتوسط والعالي. ولكن الفساد الإداري أخر إصدار هذه الكتب إلى سنة 2005. هذه الكتب لم يتم توزيعها على المعاهد والكليات ذات العلاقة وذلك لأن بعض المسئولين لم ترد أسماؤهم من ضمن اللجنة العلمية. لا تزال هذه الكتب في حاويات معدنية في أحد المعاهد ، و...

In a previous study, the authors presented a simple mathematical model for predicting the ratio of the evaporation pond area to that of a salt gradient solar pond area. The evaporation pond idea provides a very attractive method of salt recycling by evaporation, especially in areas of high evaporation and low rates of rain as it is the case for Nor...

This paper presents the results of a simple mathematical model for predicting the ratio of the evaporation pond (EP) area to that of a Salt Gradient Solar Pond (SGSP) area. The EP idea provides a very attractive method of salt recycling by evaporation, especially in areas of high rates of evaporation and low rates of rain as it is the case for Nort...

The study suggests improvements in the design of new houses to conserve energy and enhance indoor thermal comfort. Summer temperature records show that a new house has an average indoor temperature of 35°C with the ambient average 31°C. The traditional house in the old city recorded 28°C for the same period. Winter temperatures in both types of hou...

The use of more readily available meteorological data in radiation models has always been a limiting factor in many studies. The current paper presents a model originally based on cloud amount to calculate the monthly average daily insolation on horizontal and inclined surfaces. The cloud amount is replaced by fractional possible sunshine in accord...

Conservation of energy and improvement of indoor thermal confort can be effected economically through passive design of buildings. These buildings take advantage of the favourable features of the local climate to provide comfortable indoor environment. The study analyses the temperature conditions from 24 locations in Libya to estimate the need for...

A mathematical model is set up for solar collectors as a conduction problem with convection to the fluid as a boundary condition. This gives better and more direct insight to the problem than the methods hitherto used, in which the results are obtained by the superposition of solutions established in the literature. The present method gives directl...

The paper presents an analytical model for the natural circulation in a solar fluid heater. The model is formulated for the unsteady state by the application of the conservation laws of mass, momentum and energy to a fluid element of a volume equal to the product of the fluid duct cross-sectional area and an elementary length along the circulation...

This is a report on the study conducted at the Alfaatih Univ in Tripoli, Libya, which is based on the comparison of the cost of one cubic meter of water obtained by the numerous desalination stations and the cost of one cubic meter of collected rain water by the experimental station. For both cases the researchers have tried to keep various paramet...