Water turbine working principle pdf files

The fluid power is converted into kinetic energy in the nozzles. Pelton turbine or wheel is an impulsive turbine used mainly for high head hydroelectric schemes. Simultaneously, gland steam system is started to prevent air inleakage. Turbine flow meter principle based on flowing fluid engages the rotor causing it to rotate at an angular velocity proportional to the fluid flow rate. The spiral case is kept here in decreasing diameter so that to maintain the flow pressure.

Introduction to turbine machinery university of ljubljana. Please use one of the following formats to cite this article in your essay, paper or report. Water tube boiler operation and types of water tube. Then this water comes down through the downcomer pipe and enters into inclined water tube placed in hot chamber. In propellers, that means energy is put into a spindle of asymmetrical blades that puts pressure on the air or water, which pushes back to propel the vehicle. Working principle of pelton turbines from the head race in the mountains water is conveyed to the turbines installed in the power house through the penstocks. First, the water is allowed to enter into the spiral casing of the turbine, which guides the water through the stay vanes and guide vanes. The working principle of cross drum boiler is same as longitudinal drum boiler the feed water is fed to the cross drum through feed water inlet. Turbines are usually fixed in place, so when a fluid flows through it there is a drop in pressure at the back edge of each blade that causes the turbine to turn. The reaction principle, the impulse turbine, compounding of impulse turbine.

Francis turbines are the most common water turbine in use today. Turbine flow meter working principle instrumentationtools. The pelton wheel is among the most efficient types of water turbines. Water is delivered by the nozzle at a high velocity on the buckets. Gland steam must have appropriate temperature and pressure which must be controlled during startup.