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A steam turbine has an inlet of 2 kg/s water at 1000 kPa, 350oC and velocity of 15 m/s. The exit is at 100 kPa, x = 1 and very low velocity
A steam radiator in a room at 25°C has saturated water vapor at 110 kPa flowing through it, when the inlet and exit valves are closed.
A steam power plant with a power output of 150 MW consumes coal at a rate of 60 tons/h
A steam power plant operating in an ideal Rankine cycle has a high pressure of 5 MPa and a low pressure of 15 kPa
A steel tank contains 14 lbm of propane (liquid + vapor) at 70 F with a volume of 0.25 ft3. The tank is now slowly heated.
A steel cylinder of mass 2 kg contains 4 L of liquid water at 25oC at 200 kPa. Find the total mass and volume of the system
A steel bottle V = 0.1 m3 contains R-134a at 20°C, 200 kPa. It is placed in a deep freezer where it is cooled to -20°C
A steam turbine receives water at 2000 lbf/in 2, 1200 F at a rate of 200lbm/s. In the middle section 40lbm/s is withdrawn at 300 lbf/in 2, 650 F
A steam turbine receives steam from two boilers. One flow is 5 kg/s at 3 MPa, 700°C and the other flow is 15 kg/s at 800 kPa, 500°C.
The balloon is made such that the pressure inside is proportional to the diameter. The valve is now opened, allowing ammonia to flow into the tank
A spherical helium balloon of 30 ft in diameter is at ambient T and P, 60 F and 14.69 psia. How much helium does it contain?
As shown in Fig. a spring having an initial unscratched length of l0 is stretched by a force F applied at its end.
A steady combustion of natural gas yields 0.15 kg/s of products (having approximately the same properties as air) at 1100°C, 100 kPa
A stagnation pressure of 108 kPa is measured for an air flow where the pressure is 100 kPa and 20°C in the approach flow. What is the incoming velocity
A spring compresses in length by 0.12 in. for every 1 lbf of applied force. Determine the deflection, in inches, of the spring caused by the weight of an object
A steady-flow Carnot cycle uses water as the working fluid. Water changes from saturated liquid to saturated vapor as heat is transferred to it from a source
A steady supply of 1.0 m3/s air at 25°C, 100 kPa, 50% relative humidity is needed to heat a building in the winter
A steady stream of equimolar N2 and CO2 mixture at 100 kPa and 18°C is to be separated into N2 and CO2 gases at 100 kPa and 18°C
A small expander (a turbine with heat transfer) has 0.05 kg/s helium entering at 1000 kPa, 550 K and it leaves at 250 kPa, 300 K
A small elevator is being designed for a construction site. It is expected to carry four 75-kg workers to the top of a 100-m tall building in less than 2 min.
A small dam has a pipe carrying liquid water at 150 kPa, 20?C with a flow rate of 2000 kg/s in a 0.5 m diameter pipe. The pipe runs to the bottom of the dam
A sluice gate dams water up 5 m. There is a small hole at the bottom of the gate so liquid water at 20oC comes out of a 1 cm diameter hole.
A ski lift has a one-way length of 1 km and a vertical rise of 200 m. The chairs are spaced 20 m apart, and each chair can seat three people
A small water pump on ground level has an inlet pipe down into a well at a depth H with the water at 100 kPa
A small flexible bag contains 0.1 kg ammonia at -10oC and 300 kPa. The bag material is such that the pressure inside varies linear with volume