The Control Valve should always be closed before starting the pump. The minor factor also plays a big role in the pipe flow to reduce the total fluid energy. The contents of this report reflect the views of the authors who are responsible for. Friction factor as a function of Reynolds number. Discover · Annual report 2015.
Figure 2: Experimental setup Arrangement consists of pipes and direction joints which directs the flow. The test Test Pipe pipe diameter is measured in mm. This graphs show that there is a linear relation between the Reynold number and friction losses in every condition with difference in proportionality of the relation. Aerodynamics, Continuum mechanics, Fluid dynamics 1382 Words 7 Pages In this experiment, we test factors which affect friction. We pulled a wood block across a surface to determine whether the surface area of the block or the type of surface effects friction.
Head loss as a function of the velocity of flow. It is similar to that of Hazen-Williams except for the use of a fixed coefficient. Out - is friction lab report Highest Grades a Get could definition online way available have buy anyway surpassed she and foreseen and with. Depending on the flow rate, it may take some practice, and you may need to try using different containers to measure the flow volume. The test pipe Test Pipe length is measured in mm. When outflow occurs from header tank overflow, fully open the outflow control valve.
Graph of Head Loss against Velocity Graph 2. In this experiment, required equipment are a water tank, piezometric tubes, pump, a stop watch, empty bucket and a digital weight scale. This lowers the flow rate to a trickle, and increases the head in all the tubes, which aids in purging out any trapped air bubbles in the lines. Details of the friction records for slow events show that slip begins. A flexible hose is connected to the outlet and made sure that it is directed into the volumetric tank.
On top of that, it is sure that when the height of water increases will affect the height of the mercury as well but based on results obtained, the height of water is higher than the height of mercury. Procedure - Equipment Set Up Mount the test rig on the hydraulic bench and, with a spirit level, adjust the feet to ensure that the base plate is horizontal and, hence, the manometers are vertical. Chemistry, Creative writing, Essay 970 Words 3 Pages Experiments in physics lab report Department of Electrical Engineering Isabela State University Ilagan Campus, Calamagui 2nd, City of Ilagan, Isabela baccaljoemel yahoo. Do not edit them, but. Figure 1: Minor loss in pipes Yunus, 2011 Sudden expansion or contraction in fluid flow changes the velocity of fluid flow and forms eddies in the fluid. The outlet flow control valve is fully opened at the apparatus and the water flow is directed through the test section by switching the valves.
In this experiment, the head loss water is the variable constant whereby flow rate of water is the responding variable. Since the velocity at section where the diameter is same there is no kinetic head loss takes place. It is important to expel any air which may be trapped in the pipes of the pressure meter before taking readings. The head loss in a pipe is divided in to two main categories. Timings are taken as the water level rises in the tank.
Besides, it is also to determine the head loss in terms of height of mercury, mmHg and height of water, mH2O so does the temperature change and other respective observations which are necessary for this experiment. Results: Wood Surface Trial Time Velocity Acceleration Force kg Force Newtons 1 5 s 0. Static pressure tappings upstream and downstream of the test pipe connect to a water manometer or a hand-held digital pressure meter supplied. In simple terms, the measure of the level of disorder in a closed but changing system, a system in which energy can only be transferred in one direction from an ordered state to a disordered. It includes a Venturi meter, an orifice meter, a 45° bend, a ball valve, a sudden enlargement, a sudden contraction, two 90° bends of large and small radius of curvature respectively, a strainer, a gate valve and an open valve.
By opening and closing these valves as appropriate, it is possible to select flow through any combination of pipes. Last but not least, by setting up analog manometers or gauges onto the Pipe-Friction Apparatus would ease the observers and also able to determine the values with higher precision and prevent errors. That is why, percentage errors arise. Question s in the Lab Report section. Repeat the experiment Observations: For the control the reaction took place as soon as the hydrogen peroxide was added to the liver solution Bubbles of oxygen gas was produced creating white foam The control created the most bubbles The test tube with the pH. In the User Control window, Enter Parameters.