Sustainable Energy
2nd Edition
ISBN: 9781337551663
Author: DUNLAP, Richard A.
Publisher: Cengage,
expand_more
expand_more
format_list_bulleted
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Design head at China’s Three Gorges Dam, the largest hydropower project in the world, is 80.6 m, and rated power output of each of the 32 turbine generator units is 700 MW. If the efficiency of each of the turbine generator units at full power output is 93.2%, what is the design flow through each turbine?
2. Consider the system described in the news: at night, when there is energy left, water is pumped from a large lake to a reservoir at 80 m above the lake level. During the day, this water is used to generate energy in a turbine located 80 m below the elevated reservoir. Considering that the water flow is always 5000 liters/s (both at the inlet of the reservoir and at the outlet) and that the pump and turbine efficiencies are 70%, what is the power (in kW) required by the pump and the power (in kW) recovered in the turbine. Data: The pipe diameter is always the same along the system (d = 0.5 m); g = 10 m/s2; γ = 9810 N/m3.
Matter transport phenomena;
Please make it typeable as handwriting interferes with understanding
What is the cost to pump 1000 liters of water to the top of a 30 m high water tank? Assume a pumping efficiency of 50% and an electrical cost of $0.15 per KW-h. P(h2O) = 1000 ?g/m^3 . 1 m^3 = 1000 liters
Knowledge Booster
Similar questions
- a wind energy generator generates 1150w at rated speed of 20mph at the atmospheric pressure and temperature at 20deg c. calculate the change of output if wind generator is operates altitude of 1800m temperature 10deg c.wind speed 30mph,atmospheric pressure 0.88atm. area=? power generated for 1800m=?arrow_forwardNote: Use three decimal places and no need to input the unit. Consider a river flowing toward a lake at an average velocity of 3 m/s at a rate of 500 m3/s at a location 90 m above the lake surface. Determine the power generation potential of the entire river at that location. (in MW)arrow_forwardCalculate the continuous power that will be available from hydroelectric plant having an available headof 300 meters, catchment area of 150 sq. km, annual rainfall 1·25 m and yield factor of 50%. Assumepenstock, turbine and generator efficiencies to be 96%, 86% and 97% respectively. If the load factor is40% what should be the rating of the generators installed ?arrow_forward
- Discuss the benefits of pumped storage hydropower (PSH).arrow_forwardb) Water flows from a large reservoir through a pipe system which consists of 200 mm diameter ofpipe and 50 mm diameter of nozzle as shown in Figure 3. By neglecting all energy losses, calculate;(iii) Total energy at Aarrow_forwardConclusion about total energies, EDF ( energie de france) and EDP ( energis de Portugal) in 2021 ?arrow_forward
- In the figure shown below, it is desired to pump 5408732 lit/day of water from a stream to a pool. El. A = 60m while El. B = 92 m. If the combined pump and motor efficiency is 81%, calculate the monthly power cost in pesos if electricity rate is P12 per kW-hr. Assume that the pump operates for 24 hours and take 1 month = 31 days; Pipe 1: 1613 m, 223 mm, 128 (Length, diameter, Hazen Coefficient) Pipe 2: 1987 m, 287 mm, 123 (Length, diameter, Hazen Coefficient) Pipe 3: 813 m, 206 mm, 134 (Length, diameter, Hazen Coefficient) Round your answer to 4 decimal places.arrow_forwardThe 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: ?theoric=52 ?? and ?real=48 ??.)arrow_forwardA 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.arrow_forward
- The flow of a river is 150 cubic feet per second at a site where a 75 feet hydrostatic head canbe created by the erection of a dam. What is the potential capacity (in kW) of a hydroelectricpower plant if installed at this site? Consider that hydraulic efficiency of energy conversioncan be 80%, and that the electric efficiency can be 90%.arrow_forwardCivil eng Need to solve this fluid question Q- A hydroelectric dam is being planned with a Francis turbine. The engineers choose to geometrically build up an already constructed hydroturbine with a stellar performance track record rather than starting from scratch. The current turbine (turbine A) is 2.05 metres in diameter and rotates at 120 revolutions per minute (omega_A = 12.57 rad/s). Dot V_A = 350m 3 / s, H_A = 75 of water, and bhpa = 242 MW are its optimal efficiency values. Turbine B, the new turbine, intended for a bigger facility. Its net head will be higher (H_B = 104r), but its generator will continue to spin at the same rate (120 rpm). Calculate the new turbine's diameter to ensure the most efficient operation, as well as the tilde V_R horsepower and turbine, B.Also Calculate and contrast the tiny (A) and large (B) turbines' turbine specific speeds.arrow_forwardThe water behind a Dam is 206 m higher than the River below it. The water inthe dam is allowed to flow into the river to generate power.(i) Describe the energy conversions that take place at the hydro powergeneration plant.(ii) Apply the steady flow energy equation to determine the rate the water mustpass through the hydraulic turbines of this dam to produce 50 MW of power if theturbines are 100 percent efficient?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Sustainable EnergyCivil EngineeringISBN:9781133108689Author:Richard A. DunlapPublisher:Cengage Learning
Sustainable Energy
Civil Engineering
ISBN:9781133108689
Author:Richard A. Dunlap
Publisher:Cengage Learning