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pipe flow lab report connor 13295910 matthew 13295934 nazmus 12632877 sam 13356706 table of contents abstract introduction methodology experimental procedure Jun 30, 2016 · In addition to losses due to friction in a pipeline system, there are also losses associated with flow through valves and fittings. These losses are called minor losses, but these losses must be considered if the piping system has a lot of such fittings. These losses are treated as equivalent frictional losses.
By know the major head losses due to pipe diameter over a length of pipe and the minor head losses caused by pipe fittings can cut down on cost and raise the overall efficiency of a system. Calculations to determine system pressure drop require experimental data to account for friction losses occurring in valves and fittings (Steffe and others, 1984).
Although they often account for a major portion of the head loss, especially in process piping, the additional losses due to entries and exits, fittings and valves are traditionally referred to as minor losses. These losses represent additional energy dissipation in the flow, usually caused by secondary flows induced by curvature or recirculation.
Part A: Loss of Head Due to Friction in PVC 20 x 1.5 pipes. 1. Temperature of the room was recorded. 2. The length and inside diameter of the pipe were recorded. 3. All valves were closed except those that will let the water flows from the tank to section pipe 2 and return back to the tank. The direction of the flow in the pipe was verified. 4. Oct 05, 2012 · Fittings such as elbows, tees and valves represent a significant component of the pressure loss in most pipe systems. This article details the calculation of pressure losses through pipe fittings and some minor equipment using the equivalent length method. The strength of the equivalent length method is that it is very simple to calculate.
Jun 30, 2016 · In addition to losses due to friction in a pipeline system, there are also losses associated with flow through valves and fittings. These losses are called minor losses, but these losses must be considered if the piping system has a lot of such fittings. These losses are treated as equivalent frictional losses. These minor losses cause nonuniformities in the flow path, resulting in small energy losses due to: changes in pipe diameter, pipe geometry, entrance from a reservoir, exit to a reservoir, or control devices (valves) The two methods of head loss in a pipe come from friction and minor losses, and minor contains a smaller energy magnitude
Evaluation Of Friction Losses In Pipes And Fittings Of Process Engineering Plants F. W. Ntengwe, M. Chikwa, L. K. Witika ABSTRACT: The impact of flow rate (Q) on the head loss (h L) in pipes and fittings was studied on different sizes or diameters (D) of pipes fitted with gate valve, 45 and 90o bends using water as process fluid. Diameters of ...
We learned how different pipe fittings results in energy losses in pipes. Although it was quite difficult to do all the calculations, plus the presence of uncertainty created a doubt on the result, our team found this lab very interesting. The results were also close to the expected outcome. APPENDIX B Major losses are associated with frictional energy loss that is caused by the viscous effects of the fluid and roughness of the pipe wall. Major losses create a pressure drop along the pipe since the pressure must work to overcome the frictional resistance. The Darcy-Weisbach equation is the most widely accepted formula for determining the energy loss in pipe flow. Minor loss coefficients were determined for a right angle bend, a small elbow, a medium elbow, a large elbow, a sudden contraction in pipe diameter from 40mm to 20mm, and a sudden enlargement in pipe diameter from 20mm to 40mm. at 1.24 and 0.787 respectively. LOCAL LOSSES IN PIPE FLOWS Principle Change in flow velocity due to change in the geometry of a pipe system (i.e., change in cross-section, bends, and other pipe fittings) sets up eddies in the flow resulting in energy losses. Introduction Pipe systems often include inlets, outlets, bends, and other pipe fittings in the