http://dspace.mahdi.edu.sd:8080/xmlui//xmlui/handle/123456789/41 the publications of the faculty of engineering staff members 2026-04-07T14:35:32Z http://dspace.mahdi.edu.sd:8080/xmlui//xmlui/handle/123456789/672 Design of Multiple Effect Evaporators System using MATLAB Software H.A.Elhesain, Mortada; A. Salih, Elzubier; M. Adam, Kamal; N. E. Salih, Waleed Evaporation is the removal of solvent from solution as vapor. Multiple effect evaporators are important in unit operation process for industry. For instance, they are widely used in the production of raw sugar from cane sugar. The main objective of this work is to develop program in MATLAB software for the design of multiple effect evaporators system for different operating conditions in forward feed used in Asalaya sugar factory. In this design a short tube vertical evaporator, Calandria type has been used. In this study, design of selection of type of evaporator using some parameters is presented for multiple effect evaporator system.This study describes a steady state model of multiple effect evaporators for simulation purpose. The model includes overall as well as component heat and mass balance equations, and heat transfer coefficient, and area calculation for all the effects.As result of calculations, it has been found that about 5.54 of steam economy and the efficiency of multiple effect evaporators equal about 81.94%. Keywords Multiple effect evaporators,sugarcane juice, forward feed, MATLAB 2021-07-05T00:00:00Z http://dspace.mahdi.edu.sd:8080/xmlui//xmlui/handle/123456789/465 Simulation of Surface Drinking Water Treatment Plant Waleed Nour Eldien, Mohammed Moawia; Mohammed Mahgoub, Elhadi Badawi; Elnazeer Eltahir Water is an essential element for the existence of life in its various forms on the surface of the earth and the people needs in his daily life to the water for drinking so we studied for the design of a water treatment plant in alkawa city in Sudan ,The study including known of the stage of the treatment of surface water and the objective of this study including to production to meet the requirements of the water on three stages ( this year – 10 years – 20 years ), the city is located on the white Nile , noting that the city close to the source surface (White Nile) using some devices from mixing , basin coagulation and flocculation, filter and storage by simulation used super pro designer software by adding after materials such as poly aluminum chloride (P A C) and chlorine by different quantity from the three stages and the recommendation of this study conducted project in the future and must provide safety equipment. 2017-06-01T00:00:00Z http://dspace.mahdi.edu.sd:8080/xmlui//xmlui/handle/123456789/464 Comparison between the Parabolic and Dish Solar Collectors by using MATLAB Mohanad Gadelrab, Elhadi Badawi; Elnazeer Eltahir, Waleed Nour Eldien As a result of the anticipated shortage of traditional sources of energy and environmental problems caused by it, solar energy is considered the most important alternative energy, which is renewable and exploited, which is not subjected to economic considerations and just need huge machines to collect radiation or using concentrated solar collectors. The aim of the study is to compare the solar dish collector and parabolic solar collector and choosing the best to heat the furnace oil. In this study MATLAB program have been used to calculate the dimensions and efficiency of solar dish collector and parabolic solar collector for steam quantity of 2000Kg/hr. at 10bar pressure and temperature of 200Co for Nile cement factory in the city of rabak. The results obtained showed that the length of a solar parabolic collector of diameter 3m is 581.354m with efficiency of 66.67% and diameter of a solar dish collector is 41.762m with efficiently of 66.67% thus the best solar collector is the solar dish 2017-04-01T00:00:00Z http://dspace.mahdi.edu.sd:8080/xmlui//xmlui/handle/123456789/461 DESIGN AND INVESTIGATION OF ADSORPTION REFRIGERATIONUNIT ELNAZEER ELTAHIR OSMAN KHALIFA هذه الورقة تتعامل مع مشكلة تطوير وتصميم وحدة تبريد امتزازي تعمل بزوج موائع زيوليت لتوليد البرودة وال –تشغيل ماء ً سخونة معا باستخدام مصدر طاقة حاررية دافعة وذلك بإشعال الغاز الطبيعي في النظام. ال وحدة تتكون من عمود الامتزاز مملوء بالزيوليت، المبخر، وغرفة احتارق. نظام الإمتازز موصل مع وحدة ، المكثف، ومبادلات حاررية، ومروحة هواء تكييف الهواء. هذا النظام قادر علي العمل كمضخة حاررية. في هذا العمل، القياسات التي تم القيام بها لوصف تغييارت درجة الحاررة في الوحدة، ، تم وصف التغيير في طاقات التسخين ً أيضا ، معدلات سريان الماء في دورتي التبريد والتسخين والموقد. ، و التبريد أظهرت النتائج المعملية أنه من الممكن إمداد البرودة والحاررة باستمارر حيث ارتفع معامل أداء الوحدة .2.5 kW من الطاقة الحاررية الخارجة ليقترب 1.4 إلي ما فوق This work deals with design of an adsorption refrigeration plant, working with zeolite-water pair for combined production of cold and heat using a source of driving thermal energy by burning natural gas into the system. The plant is consists of absorber bed filled with zeolite, the evaporator, the condenser, heat exchangers, the ventilator and the fire chamber. The adsorption system was connected to the air conditioning unit. The plant is capable to work as a heat pump. In this work, measurements were made to describe the change of temperatures in plant, the rate of flow of water in heating and cooling cycles, also to describe the change in heating, cooling and burner powers. The experimental results show that it is possible to supply cold and heat continuously. The coefficient of performance of the plant is raised above 1.4, the heating output power is raised near 2.5 kW. 2017-07-01T00:00:00Z