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A 200-MW power plant generates electricity with an efficiency of 40%, with 87% of this waste heat removed via cooling water. The average flow in the river to which this cooling water will be discharged is 45 m^3/s, and the plant wishes to discharge its cooling water at a temperature of 80 degrees celsius. If the river temperature is 18 degrees celsius, what is the maximum rate (m^3/s) at which cooling water could be discharged under average river flow conditions such that the river's downstream temperature will not exceed 22 degrees celsius?
Pontentially useful constants: specific heat of liquid water = 4184 J/kg
Heat of vaporization (occurs at 100c) = 2257 kJ/kg; density of liquid water = 1000 kg/m^3
A ping-pong ball (diameter = 40mm, weight= .03 N Volume =4piR^3/3) is released from the bottom of a swimming pool. What is the terminal velocity of the ping pong ball in the water
Deflection of a Beam, If a beam of lenght L is fixed at the ends and loaded in the centre of the beam by a point load of F newtons the deflection
This problem involves a cylinder falling inside a pipe that is filled with oil. The small space between the cylinder and the pipe is lubricated with an oil film that has viscosity ?
a tape is calibrated and found to measure 100.04ft between the 0- and 100-ft marks. what measurements should be laid out to establish a horizontal distance of 682.25ft?
Given a mean earth radius of 20,906,000 ft, and an observation latitude of N 33 degrees, what is the arc distance of one second of longitude and one second of latitude?
Consider two cases: (1) a constant wind velocity that is twice the mean wind velocity and operating half the time; and (2) a constant wind velocity that is three times the mean wind velocity operating one-third of the time. At all other times, the wi..
The company would like to distribute the songs between the two CDs such that the used space on each CD is about the same. Formulate the problem as an IP, and find the optimal solution.
An earthen channel will be excavated into sandy soil for which Vmax = 4.0 ft/sec, n = 0.022, and the recommended m = 3. The channel will have a bottom slope of 0.0011 and accommodate a design flow of 303 cfs. Design (size) the channel section.
A five story office building is to be built on a site underlain by moderately uniform soils. Bedrock is at a depth in excess of 200m. The building will be 50m wide and 85m long and the foundation will be founded at a depth of 1m below ground surface.
Determine the reactions on the beam. The support at B can beassumed to be a roller.
Water ?ows at 6 ft/ s through a pipe 500 ft long with diameter 1 in. The inlet pressure p1= 200 psig, and the exit section is 100 ft ft higher than the inlet.
Assuming that the velcity of a 185 lb athlete just before landing is 30 ft/s at an angle of 35 degrees with the horizontal and that the athlete comes to a complete stop in .22 seconds after landing,
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