@article{Amin_ElZahar_2022, title={ECONOMIC DESIGN OF PIPE-NOZZLE DISCHARGE LINES DELIVERING FREE JETS}, volume={9}, url={https://www.granthaalayahpublication.org/ijetmr-ojms/ijetmr/article/view/1232}, DOI={10.29121/ijetmr.v9.i10.2022.1232}, abstractNote={<p>The present study focuses on finding an economic design of nozzles used in water discharge lines. An analytical solution is reached for computing the economic pipe-nozzle diameter ratio achieving the minimum pipe cost using the derivative method. The derived equation shows that at a particular pipe-nozzle diameter ratio, the pipe cost CP is minimum. However, this is evident from the worked illustrative example. On a comparison basis between this equation and the conventional one, the derived equation shows a satisfactory reduction in the pipe cost, which may reach 56.7%. It is of great interest to recognize that, by increasing the relative distance to 400, a reduction in pipe cost of 231 % associated with an increase in the power of the jet by 41.5 %, are verified. Also, the derived equation achieves a reduction in pipe cost ranging from 34 to 39.7 % depending on the frictional effects in the approach pipe. The study reflects the reliability of the derived equation in computing the economic pipe-nozzle diameter ratio used in discharge lines delivering free jets. However, there are many engineering applications of water jet nozzles used in; water filters, flotation tanks, sedimentation tanks, water storage tanks, trickling filters, and other units of water and wastewater systems.</p>}, number={10}, journal={International Journal of Engineering Technologies and Management Research}, author={Amin, Mohamed M. M. and ElZahar, Medhat M. H.}, year={2022}, month={Oct.}, pages={10–25} }