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1. A steam power cycle has a high pressure of 3.0 MPa and a condenser exit temperature of 45?C. The turbine efficiency is 85%, and other cycle components are ideal. If the boiler superheats to 800?C, find the cycle thermal efficiency.
2. A Rankine cycle with water superheats to 500?C at 3 MPa in the boiler, and the condenser operates at 100?C. All components are ideal except the turbine, which has an exit state measured to be saturated vapor at 100?C. Find the cycle efficiency with
(a) an ideal turbine and
(b) the actual turbine.
the weight of a sample of coarse aggregate was measured under various conditions with the following results: oven-dry weight in air 1076.3 g air-dry weight in air 1083.3 gsaturated-surface-dry weight in air 1089.2 g
A hydraulic jump occurs in an rectangular channel 2.3 m wide when the discharge is 2.5 m^3/s. If the upstream depth is 0.25 m calculate the depth downstream of the jump and the energy loss in the jump.
Draw and explain a pump curve that illustrates the effect of throttling in the CLOSED direction (i.e., reducing flow) the discharge valve for a constant speed centrifugal pump installed in a cooling water system.
What is the length of a 2 degree increment along a (A) meridian and (B) parallel at 45N and 115W. Assume the radius of Earth is 6370 km.
calculate the horizontal component R of the force supported by each of the two symmetrically placed bearings when the 100-lb force is first applied.
Drainage facility: - Drainage facility is the normal or fake evacuation of surface and sub-surface water from a territory. Numerous rural soils need waste to enhance creation or to oversee water supplies
Ethylene diamine tetra-acetic acid (EDTA) is a water-soluble compound that readily combines with metals, such as calcium, magnesium, and iron. The molecular formula for EDTA is C10N2O8H16. Assume one EDTA molecule complexes (associates with) one m..
The probability that a new car battery functions for over 10,000 miles is .8, the probability that it functions for over 20,000 miles is .4, and the probability that it functions over 30,000 miles is .1. If a new battery is still working after 10,..
A horizontal Curve is designed for a two lane mountainous terrain. The following data are known. intersection angle: 40 degrees tangent length: 436.76 ft Station on PI: 2700+10.65 fs=0.12 e=0.08
Water at 20ºC flows at a velocity of 2 m/s in a 200-mm diameter horizontal ductile-iron pipe. a) Estimate the friction factor in the pipe, and state whether the pipe is hydraulically smooth or rough
The curve is to be redesigned for a 70 mph design speed in the year of 2025. Vehicle braking technology has advanced so that the recommended design deceleration rate is 25% greater that the 2011 value used to develop
A window receives 500 W of heat transfer at the inside surface of 20?C and transmits the 500 W from its outside surface at 2?C, continuing to ambient air at -5?C. Find the flux of entropy at all three surfaces and the window's rate of entropy gene..
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