friction loss in pipe lab report
V Mean velocity QA g Gravity. The shear stress of a flow is also dependent on whether the flow is turbulent or laminar.
This experiment was carried out to investigate the friction factor as well as the major and minor head losses because of friction in three different types of bore pipes namely elbow pipes expansion and construction pipes and long pipes.
. H f LV gd f hgd L LV 2 L 2 2 2 3 where f is a dimensionless constant ie. When a fluid is flowing through a pipe it experiences some resistance due to which some of energy head of fluid is lost. We also manage to see that when the diameter is larger the Reynold Number will be higher as well as the volume flow rate.
Major losses are associated with frictional energy loss that is caused by the viscous effects of the fluid and roughness of the pipe wall. To bucket or tank to. We also manage to observe the head loss that occurs in a pipe.
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The friction factor f and. This change of energy is usually referred to as friction head loss which represents the amount of energy converted into heat per unit weight of fluid. MEC2404 Frictional Flow in Pipe Lab Report Done by.
Head loss Due to Sudden Changes in Area of Flow. In the lab we observed the effects of pipe friction and minor losses due to different flow rates through different pipe sizes. Separation caused by one layer friction to be prevented by the installation of guide vanes to.
Whenever a fluid flow through a pipe there will be some friction losses. Similarly the entry. Discharge is downtown from the digital display push the.
The head loss is directly proportional to the difference to stress. Turbulent flow 2Laminar flow 3 Where. Causes of friction loss can include the movement of fluid molecules against one another or against the inside surface of the pipe and bends kinks or sharp turns in hose or pipingThis experiment allows us to investigate different scenarios of piping particularly in roughness geometry and valves.
Open the ¾ old pipes capillary tubes upstream and downstream so that the head loss could be monitored. Pipe lab report done by md. The friction factor values are associated with head loss.
The experiment also developed turbulent flow laminar flow and compared measured and calculated head losses in. The head loss along a length L of straight pipe of constant diameter d is given by the expression. Experiment 4 friction factor slideshare.
A gate valve provides friction to the flow of the fluid in a pipe. Energy loss through friction in the length of pipeline is commonly termed the major loss h f which is the loss of head due to pipe friction and to viscous dissipation in flowing water. Major losses create a pressure drop along the pipe since the pressure must work to overcome the frictional resistance.
The head loss due to friction may be. Pipe friction loss john claydon. Loss of head is incurred by fluid mixing which occurs at fittings such as bends or valves and by frictional resistance at the pipe wall.
For a long pipeline on the other hand skin friction at the pipe wall. Friction forces lab team niha0. Next this experiments ultimate goal is to calculate the head loss due to fluid friction and speed for water flow through the pipe.
Thus in hydraulic engineering practice it is necessary to estimate the head loss incurred by a fluid as it flows along a pipeline. Ce 336 lab 5 report friction in pipes ali alyami. Where there are numerous fittings and the pipe is short the major part of the head loss will be due to the local mixing near the fittings.
A short summary of this paper. Ramith Bulumulle 24698512 Don Gayanga Millevithanatchy 24829781 Zhi Ying Lim 23725540 26102014 fAbstract The principle examined in this experiment was how the frictional flow of a fluid in a pipe relates to the. F Friction factor.
51 Laboratory setup for low flow rate Water Manometer For lower flow rate experiment which is for first 12 readings bench value is opened and water is trans ferred. Page 2 Introduction This experiment was conducted to measure the head loss in the pipe due to friction between the fluid and the wall of the pipe. Energy losses in fittings live experiment 2015 youtube.
The head loss values have been calculated using Equation 1. Major loss is generally takes place in long pipe due to friction. The total energy loss in a pipe system is the sum of the major and minor losses.
It compared an experimental result with a theoretical result and derive a percentage error of less than 30 for all the tests. Conclusion The friction loss in pipe flow was successfully demonstrate in this lab as well as measuring of flow rate in pipes. Conclusion This lab showed us that fluids traveling through pipe systems result in pressure losses because of friction.
Frictional loss is measured Piezometer tappings are made at an upstream section which lies approximately 45 tube diameters away from the pipe entrance and at a downstream section which lies approximately 40 tube diameters away from the pipe exit. The lab measurements friction loss in pipe lab report. This is due to frictional resistance hydraulic gradient and the relationship between head loss and the Reynolds number.
Set the inbound system pressure to 10 PSI and then allow the flow to discharge into the receptacle for a few minutes until flow is steady. Friction factor which is a function of the Reynolds number of the flow and the roughness of the internal surface of the pipe. Pressure losses may be studied and pipe system process of pipes lab report for frictional losses decrease with proper density of water in.
The head loss in a pipe can be calculated by the formula P lossmajor f v 2 L 2 D Bansal 2012 f is the friction factor v is the velocity L is the length of the pipe D is the diameter of the pipe ρ is the density of the fluid flowing through the pipi ng system. These clear lengths upstream and downstream of the test section are. Friction loss is the loss of energy or head that occurs in pipe flow due to viscous effects generated by the surface of the pipe.
28 Full PDFs related to this paper. This energy drop is dependent on the wall shear stress τ between the fluid and pipe surface. This energy drop is dependent on the wall shear stress τ between the fluid and pipe surface.
The shear stress of a flow is also dependent on whether the flow is turbulent or laminar. The head losses hf in pipe due to friction can be determined using Darcy-Weisback equation. Friction loss is the loss of energy or head that occurs in pipe flow due to viscous effects generated by the surface of the pipe.
Experiment 1 friction losses in pipes report reynolds. Head losses in pipes fluid flow lab report docsity. Pipe line introduces extra friction in addition to normal friction due to the walls of the pipe.
The results in Figure A2 show that the loss in Q due to the gate valve was the lowest 5 m and that due to exit loss was the highest 25 m at Q of 40 m3h.
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