Find the plant-s thermal efficiency
A utility plant runs an ideal Rankine cycle with water. The boiler pressure is 3.0 MPa and the cycle has a high temperature of 450 °C and its low temperature is 45 °C. Find the plant's thermal efficiency.
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A Stirling engine works on a cycle consisting ofthe following four internally reversible processes. Assume the working fluid to be Air as an ideal gas and determine the thermal efficiency of the cycle.
A tank of 50 cubic feet contains saturated ammonia at 100 F and a quality of 50%. Vapor is withdrawn from the top of the tank until the temperature is 50F. The process is adiabatic.
The City of Houston has a water filtration system that consists of a large rigid tank with a single 1.5m diameter inlet pipe and two 0.9m diameter exit pipes. Water enters the system through the inlet pipe at 25oC and at a velocity of 4m/s.
Determine hooke's required thickness to the nearest 1/4 inch to prevent tensile or bearing failure if Sigma b-ult = 150 ksi and factor of safety of 1.5 is maintained.
A heat engine receives 1 kW heat transfer at 1000 K and gives out 600 W as work with the rest as heat transfer to the ambient. What are the fluxes of exergy in and out?
A mixing chamber steadily mixes a hot water stream at 80°C and 0.5kg/s rate with a cold water stream at 20°C. If the leaving mixture is at 42°C and mixing happens at 250kPa, determine the mass flow rate of the cold water stream.
To find the minimum distance b to get the ball over the top, I'm not sure weather you use Conservation of Mech Energy or newtons 2nd law and set the Nforce to zero at the to position b.
The mass of the piston is such that a cylinder pressure of 200 kPa will float it. (a) Find the final temperature and volume of the water. (b) Find the work done by the system.
Find the percent decrease in force necessary to move the piston when the SAE 10W oil between the piston and cylinder warms up from 0 degrees C to 100 degrees C.
A certain process requires 2.3 cubic feet per second of water to be delivered at a pressure of 30 PSI. This water comes from a large tank with a pressure of 60 PSI and flows through a galvanized iron pipe that is 200 ft long and has 6 90 degree th
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