The Efficiency Analysis of Head Loss for Nonlinear Bend (Sliced) 90 degree
Moh Abduh(a*), Suhardjono(b), Sumiadi(b), Very Dermawan(b)
a. University of Muhammadiyah Malang
b. University of Brawijaya
Abstract
The head loss in nonlinear bend caused due to the friction of the wall of bend (Li) and changes in the angle slices of bend (alpha). The elements that influence are velocity (U) number of slices (n), the average length of nonlinear walls (Li), angle changes of slices of bend (alpha), friction coefficients (f), gravitational acceleration (g) and pipes slope (I). Equation 12 gives an overview of the analysis by this research model. The results of the analysis of the equation following the hypothesis made that the discharge and diameter of the pipe are fixed and gives treatment to the number of slices the result that the more the number of slices the value of the coefficient of head loss is getting smaller. When inlet flow passes through the bend, changes in direction and collisions of water particles cause turbulence until the downstream of the bend are quite long and affected by the initial velocity. This method expected to provide optimal benefits related in piping networks, especially main networks with a large diameter of pipes. The head is measurable, fast, easy, and economical in implementation.
Keywords: nonlinear bend; flow direction change; head loss; the numbers of the slice (n)
Topic: Environmentally Sustainable Agriculture