Tuesday, 08 May 2018 09:50

Chemical engineering department hold a seminar on Al-Khawarumi with the attendance of the head of the department Assc.Prof.Dr.Jamal Mana and bout scientific and administrative deputies Assc.Prof.Dr.Khalid Ajmi and Assc.Prof.Dr.Walla Abdul-Hadi and number of faculty in which the MSC student Elaf Khalid presented a lecture about reducing the obstruction of fluid flow in pipes by adding nanomaterials.

In this research, the student showed that several methods were used to reduce the high cost of energy used to transport fluids in pipelines. , Where recent studies have demonstrated the effect of nanotubes as a reduction in fluid flow. The aim of this study is to understand how the presence of solids or nanoparticles in liquids can reduce the problems of friction losses in pipes. This study investigated the effect of nanoparticles as mitigating factors for energy losses resulting from water transfer in pipelines. Where nanotubes are added at low concentrations such as parts per million to the solution. These small quantities played a dominant role in reducing disturbance and causing a significant reduction in friction losses. The tested water samples were selected, and the nanotubes used for water and nanoparticles were used in five different concentrations (50-250 ppm).

The test part consists of four different types of pipes (a 29.6 mm steel pipe, a 18.3 mm steel pipe, a 29.6 mm glass tube, a 29.6 mm L-shaped pipe), water pumping at different flow rates (1.0 To 0.8 m3 / h for each type of pipe and at room temperature (35 ± 1) m also studying the effect of nanoparticles types such as silica SiO2 and TiO2 titanium for comparison purposes.

The researcher also studied the effect of (additive type, additive concentration, pipe type, flow rate) on the percentage of reduction of disability and percentage of flow increases as percentage was also calculated. The best conditions for reducing disability in different tubes were also calculated in different operating conditions. Increased concentrations of nanoparticles and flow velocity. The steel pipe with a diameter of 29.6 mm shows the highest loss reduction compared to other pipe types at a certain speed. The reduction in energy losses when using titanium TiO2 nanoparticles was slightly higher than in SiO2 due to the difference in viscosity. The nanoparticle with a concentration of 250 ppm was shown to reduce the coefficient of friction. The highest loss reduction was obtained in the higher velocity of the tube Internal 29.6 mm. A mathematical adjustment was performed using an arithmetic program where the results showed a correlation between the reduction of the disability ratio in the practical experiments with the theoretical and expected results.

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