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Consider a Rankine cycle with saturated steam leaving the boiler at a pressure of 2 MPa and a condenser pres- sure of 10 kPa.
(a) Calculate the thermal efficiency of the ideal Rankine cycle for these operating conditions.
(b) If the net reversible work for the cycle is 0.5 MW, calculate the required flow rate of cooling water supplied to the condenser at 15°C with an allow- able temperature rise of 10°C.
(c) Design a shell-and-tube heat exchanger (one-shell, multiple-tube passes) that will meet the heat rate and temperature conditions required of the con- denser. Your design should specify the number of tubes and their diameter and length.
Determine the change in entropy for 1.0 mole of an ideal gas originally confined to one-half of a 5.0-L container when the gas is allowed to expand to fill the entire container at constant temperature.
consider a vertical plate of dimension 0.25 m x 0.50 m that is at ts100 c in a quiescent environment at t infinity 20
a conductor 1 ft long moves at right angles to a uniform magnetic field. find the voltage induced in the conductor if
1. A long wire parallel to the x axis carries a current of 6.5 A in the positive x direction. There is a uniform magnetic field B = 1.35 T j. Find the force per unit length on the wire.
Water initially exists as a saturated liquid at 186oC is contained in a piston-cylinder assembly. The water undergoes a process to the corresponding saturated vapor state, during which the piston moves freely in the cylinder
a horizontal force f pushes a 10 kg block up a fricitionless ramp with a circular contour the radius of curvature of
In a wind tunnel, a flow is sped up. In the reservoir, the velocity is approximately zero. In the test section, the air is at standard conditions with a flow speed of 30 m/s. What is the total pressure in the test section (in Pa)? What is the static ..
an equimolar mixture of n2 and o2 is heated to 2100 k at 1 atm which generates no. calculate the molar values of the
a cylindrical rod of an unknown material is subject to a force of 20000n. the cross sectional area is 0.5 cm2 and is of
calculate the work required to compress air from standard atmosphereic pressure to 2.3 atm in kjkg air.a. assume a
a cnc drill press is to perform a series of through-hole drilling operations on a 1.75 in thick aluminum plate. each
The tapered member is fixed connected at its ends A and B and is subjected to a load P = 7 kip at x =30in. Determine the reactions at the supports. The material is 2in. thick and is made from 2014-T6 aluminum (Eal = 10,600ksi).
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