Water must flow over a distance of 2 800 m from a large catchment dam to a turbine. The water level in the catchment dam is 1 620 m above sea level and the turbine is situated 1 275 m above sea level. The efficiency of transmission is 65% and 300 kW must be transmitted from the pipeline to the turbine. If f = 0.007, determine the number of 200 mm diameter pipelines, which must be laid in parallel, needed to transmit the required power.

Water must flow over a distance of 2 800 m from a large catchment dam to a turbine. The water level in the catchment dam is 1 620 m above sea level and the turbine is situated 1 275 m above sea level. The efficiency of transmission is 65% and 300 kW must be transmitted from the pipeline to the turbine. If f = 0.007, determine the number of 200 mm diameter pipelines, which must be laid in parallel, needed to transmit the required power.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Water flows through a 7.5 m diameter penstock on a dam at a flow rate of 113 m3/s. The total head available for the turbine is 18.4 m. The specifiic weight of water is 9810 N/m3. What is the power generated by the turbine?
A small hydro electric power plant utilizing two (2) Pelton turbines and a single main penstock serving water to two nozzles for respective turbines. If both turbines are operated at the same time with same efficiency of 92% under the same net head of 2314 ft, same speed of 360 rpm and same flow rate. Determine the specific speed if the flow rate in the main penstock is 263 ft3 /s.
A pipe is used to deliver water at a rate of 3.8 m³/s from the intake to the turbine. The difference in elevation between the intake’s water surface and the turbine is 200 m. Knowing the headloss in the pipeline from the intake to the turbine is 8 m, find the power (in kW) generated by the turbine if its efficiency is 80%.
4.112. The turbine extracts from the flowing water half as much energy as remains in the jet at the nozzle exit. Calculate the power of the turbine. Water 300 mm d 300 mn d 30 m 300 mm d 300 mm d 150 mm d Problem 4.112 Problem 4.113 4.113. This turbine develops 75 kw when the flowrate is 0.6 m/s, what flowrate may e expected if the turbine is removed?
At a potential hydro-plant site, the average elevation of headwater is 582m, the tailwater is 480m. The average annual water flow was determined to be equal to that volume flowing through a rectangular channel 8.15m wide, a depth of 1.22m and the velocity is 4.6m. The turbine efficiency is 87%, generator efficiency is 95%, and a head loss is 3.5% of the gross head. Find the following: a. the generator power in kW 44,150 28,206 36,490 b. the annual energy (kWH per year) that can be produced if the plant operation is 345 days per year 235,154,731 302,142,714 244,334,189 c. the annual income of the plant if the cost of the energy produced is P0.60 per kW-hr 141,092,838 181,285,628 162,653,256
PROBLEM E A hydroelectric power plant operates under a discharge of 500 cfs with 90 % turbine efficlency. The overall head loss Is 1.5 times the velocity head In the 7-ft-dlameter penstock. With the conditions stated, determine the following: (a) the velocity (ft/s) In the penstock, (b) the head loss (ft). (c) the head (ft) extracted by the turbine, (d) the power Input (hp) to the turbine, and (e) the power output (hp) expected from the turbine. 30 ft Water d=7 ft 5 ft
Two reservoirs A and B have elevations of 250 m and 100 m,respectively. The two tanks are connected by a 250-mm diameterpipe, 250-m long, with a turbine placed along its length. If the flow ofwater in the pipe is 140 L/s and C = 120, then:Determine the power output of the turbine in kW if the efficiency ofthe turbine is 85%.
The flow rate of the hydroelectric power plant in the figure is 50 m3/s, and 2 meters of water column energy loss occurs due to friction in the pipeline. Find the power that water transfers to the turbine. Calculate the theoretical and actual power of the turbine by taking the efficiency of the turbine-generator group, η = 0.92. (Answer: Ntheoric=52 MW and Nreal=48 MW)
A turbine is installed with a total energy head of 14.97 m. if the rate of flow is 0.48 m3/s,determine the following:a. The input horsepower of the turbine.b. If the efficiency of the turbine is 82 %, compute its output hp.