fluid raporu - 1 ) ABSTRACT The purpose of this experiment...

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Unformatted text preview: 1 ) ABSTRACT The purpose of this experiment is to determine the loss coefficients () with respect to non-dimensional in a turbulence flow. If these coefficients and the Re are used in a graph a Moody chart can be obtained for the specific flow. Also using the algebraic equations given energy line, hydraulic grade line, and local losses can be derived experimentally. Also detailed information about flow meters and orifice-meters will be acquired. 2) TEST EQUIPMENTS Experimental Procedure The schematics of the experimental equipment looks like, Pipe friction loss test stand The test equipments or these experiments are like these: i) Pipe friction loss test rig: In this experiment we used five closed loop piping system consist of a long piece of pipe fed by a centrifugal pump, which sucks water from a tank. We used a differential manometer, which is connected at the beginning and the end of the long pipe. ii) Local loss test rig: In this experiment we used a lot of minor loss components such as sudden contraction and expansion, elbows, valves, venturimeters, orificemeters. We fed the system with a centrifugal pump, which sucks water from a tank partly full of water. We placed piezometric tubes on the piping system at the specific points like before elbows and after elbows and determine the pressures at these points. And also we measured the flow rate with a volumetric flowmeter. The volumetric flow rate is measured by counting the volumetric flow per unit time using a chronometer. 3) THE PIPE FRICTION LOSS EXPERIMENT: While performing this experiment we followed these steps. First we started the centrifugal pump while the water discharge valve was fully opened. Then we took note the values of the pressures which were read from the manometers, the volume of the water withe the help of the volume flowmeter and the time with the help of the cyronometer. At last the calculations about volumetric capacity, mean velocity of the flow, Reynolds number and friction coefficient were done and these steps are repeated five times for the different positions of the water discharge valve. The pipe friction loss coefficient () is a function of relative roughness () and Reynolds number (Re) where the relative roughness is defined as the ratio of the absolute roughness (k) to the pipe inside diameter (D i )....
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This note was uploaded on 10/28/2010 for the course MECHANICAL mak354 taught by Professor Muratçakan during the Winter '08 term at Istanbul Technical University.

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fluid raporu - 1 ) ABSTRACT The purpose of this experiment...

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