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1. Complete one of the following projects involving methods for storing electricity considered thus far in this book (see Secs. 2.7, 4.8.3). Report your findings in a report providing a full rationale together with supporting documentation.
(a) For each storage method, identify its principal sources of exergy destruction and develop an exergetic efficiency for it. Use principles of this chapter with assistance from the technical literature as required.
(b) From these storage methods, identify a subset of them well suited for storage duty associated with a 300-MW wind farm. On the basis of cost and other pertinent factors for such duty, place the subset in rank order.
The power output of an ideal, open-cycle gas turbine cycle is 75 MW and its pressure ratio is 16. Air enters the compressor at 520 R and enters the turbine at 2800 R. Using variable specific heats at 1000°F: cp = 0.263 Btu/lbm-R and k = cp/cv = 1.353..
you are requiredto heat treat samples of al 2024 to a t6 condition but you dont know what heat treating schedule to
What are the key advantages and disadvantages of using a liquid metal as a coolant in a nuclear reactor? Briefly explain and describe and draw diagrams for the two typical configurations that can be used for a liquid metal cooled reactor.
an ideal rankin cycle uses water as a working fluid which circulates at a rate of 80kgs. the boiler pressure is 6 mpa
if the tires do not slip on the pavement determine the points on the tire that have a maximum and minimum acceleration.
i a solid 1.5-m-diameter sphere floats at the interface between water sg 1.0 and mercury sg 13.56 such that 30
a a rigid tank containing 20 kg of refrigerant 134a as saturated vapor at 1.0 bars and -26.43 c is heated until the
considering a river flowing toward a lake which is 40 m below. it is known that the river flows at a constant velocity
A cylindrical metal specimen having an original diameter of 10.8 mm and gauge length of 50.80 mm is pulled in tension until fracture occurs. The diameter at the point of fracture is 6.60 mm and the fractured gauge length is 76.14 mm. Calculate the du..
a tank is filled with 8 gallon of brine in which 2 lb of salt is dissolved. brine having 3 lb of salt per gallon enters
A rock is thrown straight down from the top of a cliff overlooking a canyon with an initial velocity 60 ft/sec and it hits the bottom of the canyon in 9 seconds. Determine the height from which the rock was thrown
A tube of 2-mm diameter is used to heat saturated water at 1 atm, which is in cross flow over the tube. Calculate and plot the critical heat flux as a function of water velocity over the range 0 to 2 m/s. On your plot, identify the pool boiling re..
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