Impact of a water Jet laboratory - Lab Report Example

Only on StudentShare

Extract of sample
Impact of a water Jet laboratory

Throughout the world, water turbines have been used in the generation of power. This happens when water that is under pressure strikes the turbine vane thus producing mechanical work. The force that is generated gives out rotational motion when the jet hits the vanes. A clear example of a water turbine is the Pelton wheel. This form of a turbine has more than one water jets which are normally tangentially directed towards vanes which are tightened on the turbine disc rim. The water creates an impact on the vanes producing a torque on the wheel. The torque makes the wheel to rotate thus developing power. The prediction of the pelton wheel’s output and determination of the optimum speed of rotation requires the understanding of the jet’s deflection to produce a force at the bucket and its relation to the momentum rate of the jet. This experiment explores the various forces that are exerted by a water jet on different plates. In this experiment, the measurement of the generated force when a water jet strikes a deflector was obtained.
Theory.
Whenever a horizontal water jet with a velocity v1 hits a freely moving plate, a force would be generated to the plate through the jet’s impact. This force, according to the theory of momentum is equal to the needed force in bringing back the plate in the initial position. This force should be same as the rate of momentum change of the flowing water towards that direction. In this regard, when F is a force of balancing needed to return the plate to the original position, it means that;
F = ρ Ǫ (v1-v2), where V2 includes the velocity of the jet in the direction that is horizontal after hitting the plate, V2 is certainly zero. This implies that
F = ρ Ǫ v1 ...
Download paper

Summary

In this experiment the key objectives is measuring the force that is produced by a water jet when it strikes two types of vane, that is, a flat plate and a hemispherical cup, and comparing the results with the theory values obtained from the flux momentum in the jet. …
Author : creinger

Related Essays

Department of Mechanical and Automotive Engineering
The flow through the pipe could either be laminar or turbulent and so the experiment will be directed to distinguishing the kind of flow. Flow should be started through the pipe being investigated. The pipe must have manometers installed on both ends of the region being investigated. The diameter of the pipe must be measured beforehand. The discharged fluid should be collected in an appropriate container that can aid volume measurement. A stop watch should be used to monitor the total time required for a certain volume to flow. Starting with an empty container, the fluid should be allowed to...
22 pages (5522 words) Coursework
laboratory report, water/cement ratio
Given below is the graph which shows the relationship between water/cement ratio and compressive strength of concrete. It can be observed from the image that the relationship is hyperbolic in nature. Figure 1: Relation between strength and water/cement ratio of concrete The compaction of concrete is the process adopted for expelling the entrapped air from the concrete (Shetty 2010). Higher the amount of air entrapped, lower is the workability of the concrete. Even wet cement i.e. concrete with high water/cement ratio is not favourable because it can cause voids when the water dries from the...
10 pages (2510 words) Essay
LNG & LPG vs. Kerosene in Fueling Aircrafts
Indeed, there are high-tech types of aircrafts in the world that use different forms of energy, improved technology, and carrying many passengers. Nevertheless, there are other factors that affect the operations in the aviation industry that include environmental factors, price of fuel and other aircraft equipment, and the development of more effective and convenient sources of energy (Federal Aviation Administration, 2009). However, this paper will address the issue of fueling different types of aircrafts in different parts of the world and at different environments. More so, the paper will...
9 pages (2259 words) Essay
petroleum water injection
For the formation of this petroleum reservoir worth producing various geological elements are required. These elements include; porous reservoir rock which stores the petroleum, organic rocks which are the source of generating the gas or oil and lastly some kind of traps to prevent leaking away of the oil and gas (Souza at el). Usually these traps are found in predictable areas like next to faults, top of anticlines and under sandstone beds. The traps are of three types; structural, hydrodynamic and stratigraphic traps. Hydrodynamic traps are not common types of trap. They usually caused by...
5 pages (1255 words) Essay
Laboratory Testing and Evaluation Report
A theoretical study on their mechanical properties is also made. Samples of both finished materials having 1.2 mm thickness are tested against their mechanical properties which include universal testing and hardness testing. Another study of same grade of material which is kept under different process conditions is also made. Samples of 1.2 mm finished skin rolled SPCC steel versus 1.2 mm annealed SPCC steel were also studied in the same manner. As per discussing the chemical composition of the two materials, JISF (2011) had shown the allowable alloying percentage as given in Table 1. Table 1...
6 pages (1506 words) Essay
quantitative asset managment laboratory
The QAM obtains its name from its two components of out of phase which are 90 degrees. Aim of the experiment The primary concern of the experiment is to design and implement a Quadrature Amplitude Modulation transmitter. The experiment aims at the student being able to understand the representation of baseband signals in constellations and to have a better knowledge of differential encoding. The experiment also aims at reviewing the Quadrature Amplitude Modulation in digital communication, as this will help in generation of signals and demodulation. Because of the close relationship between AM...
6 pages (1506 words) Coursework
Electrical and Electronic Engineering laboratory logbook and report
This arrangement determines the direction of conventional current or electron flow and the polarities of any voltages applied. Concerning the direction of conventional current flow, the arrow at the emitter terminal of the transistor representation for both types of transistors points towards the direction of conventional current flow and therefore offers an important reference. The methods of determining the type of transistor and material used to make it are demonstrated in this experiment including how to identify the three terminals of a transistor (Gates 2012).
...
6 pages (1506 words) Essay
Got a tricky question? Receive an answer from students like you! Try us!