Ali Najim Abdullah Saieed
@ruc.edu.iq
Refrigeration and air conditioning technique
Al-Rafidain university college
EDUCATION
MS.C. Refrigeration and air conditioning, University of technology, Baghdad-Iraq, 2002
Scopus Publications
Scopus Publications
Omar H. Al-Zoubi, Ebraheem Abdu Musad Saleh, Ali Najim Abdullah Saieed, Bokov Dmitry Olegovich, Enas R. Alwaily, Ahmed Alawadi, Mohammed Talal, and Yasser Fakri Mustafa
Elsevier BV
Monaem Elmnifi, Ali H. Mhmood, Ali Najim Abdullah Saieed, Muna Hameed Alturaihi, Sadoon K. Ayed, and Hasan Shakir Majdi
International Information and Engineering Technology Association
Ali Najim Abdullah Saieed, Muna Hameed Alturaihi, Lina Jassim, and Hasan Shakir Majdi
International Information and Engineering Technology Association
Ali Najim Abdullah Saieed, Monaem Elmnifi, Abdalla Saad Ahmed Eltawati, Salem E Salem Elzwa, Yasir Ali Mezaal, and Laith Jaafer Habeeb
Private Company Technology Center
Fossil fuels are non-renewable, finite, and exhausting. Therefore, it is necessary to find alternative sources of energy. Solar energy is abundant in nature, so it can be considered as the best alternative to meet the energy demand. It is sustainable, renewable, and scalable. Increasing the efficiency of harnessing solar energy should be one of our top concerns because it is a renewable resource. The challenge in utilizing this energy is to increase efficiency as well as reduce production costs. So, a dual-axis solar tracker was developed in this study to ensure that the tracked solar cells create more electrical energy than stationary solar cells, improving the performance of the solar panels and expanding their ability to make the most of the solar radiation. The experiment yielded great results. Due to its constant exposure to sunlight, the temperature of the mobile cell is higher than that of the stationary cell. The radiation intensity of the tracked cell is more than that of the fixed cell. The radiation intensity for the traced cell is more than that of the fixed cell and peaks at 1282 W/m2 on September 10 and 1028 W/m3 on September 11. For day 10, there was a daily rate of rise in radiation intensity on the tracker cell of 42 % compared to the fixed. Day 11 saw a difference of 210 W/m2/h, or 61 percent. The results are almost same from midday until dusk. During the day, the tension in the vacuum is somewhat different for stationary cells and tracking cells, with the value of the tracker being marginally lower than the fixed value. The increased temperature in the cell caused by more solar radiation and a warmer environment is thought to be the reason for the lower energy gain in the tracker
Hasan Shakir Majdi, Mustafa Abdul Salam Altalib, Ali Najim Abdullah Saieed, Waleed AbdulMunem Abbas, Omar Talal Hamid, and Hussein Alawai Ibrahim Al-Saaidi
Private Company Technology Center
Work was done on the Tesla valve in this study with a coiled and three-dimensional shape, where a different number of these channels and a direct and reverse flow turbine were used to compare the changes that obtain the amount of pressure and temperatures. With the conception of the technology of transferring heat energy in various heat exchangers, it became necessary to develop our technologies that increase the transmission of this energy, and we must refer to the inventions that contributed to the development of the heat transfer system and the three energy laws. They contributed to the development of some mechanical systems, where the Tesla valve is considered one of the valves that have two directions of flow, the first is direct, in which the pressure value is low, and the other is reverse, which occurs when movement is disturbed due to the direction of the channel in which it can be used. This concept can be used to improve heat transfer. Where the results establish that an increase in the number of channels positively affects the pressure and thus gives more outlets for the passage of water, a study has shown. In the case of four channels an exit temperature of 304.14 K was obtained, which is the highest temperature reached in cases where the direction of flow is direct. The pressure value was in the case in which the channel is a quadrilateral, and the pressure value reached 209 pa. This data are useful and important because the direct exit score has reached 305.74 K for the Tesla valves, which are designed to give enough time for the heat to transfer to the water. The main principle of the Tesla valve is the reverse direction, which works to obstruct the movement of the fluid, and thus increases the pressure and reduces the velocity of the flow