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Suppose 550 g of aluminum which has been heated to 150 C is added to 100 g of water which is at a temperature of 25 C. What is the equilibrium temperature for this mixture?
Sketch the process on a p-V or T-s diagram identifying the state points and processes and then, making the "cold air" assumption calculate the following the specific net work transfer.
Now, heat is transferred to the water until the volume quadruples and the cylinder contains saturated vapor only. Determine the internal energy change of the water.
Assuming complete combustion and that the pressure in the container remains constant. Determine the entropy generation during the process on the basis of 1 mole of ethane.
Sketch the arrangements. Draw neat sketches to show how the end-plates each 12mm thick can be joined the shells plates.
A single plate clutch consists of a pair of contacting surfaces. Calculate the power transmitting capacity of the clutch at 500r.p.m using:
Propose two equipment methods, in order of preference, to achieve the above duty, and outline the advantages and disadvantages of each method and the basis of your proposition.
If the pressure at the water surface is atmospheric, what force must be applied at the lower edge of the door in order to keep the door from opening?
If the coefficient of rolling resistance of a cylinder on a flat surface is 0.5inch, at what inclination of the surface will the cylinder of radius r=1ft roll from uniform velocity? What is meant by
The 14 in. spring is compressed to an 8-in. length, where it is realeaed fomr rest and accelerate block A. Calculate the time t for the block to go to 3 in.
It is then reheated to 440C before entering the 2nd stage turbine where it expands to condensor pressure of 0.008MPa. Determine rate of Heat transfer from the condensing steam as it passes through
Determine the magnitude and location of the maximum absolute value of the shearing force and bending moment? Compute the maximum stress due to bending in a round tod of 20mm in diameter if it is subje
The overall volume compression ratio of a reversed carnot cycle working with air as a refrigerant is 10. The temperature limits of the cycle are 40 defree C. determine: the pressure, volume and temp
Design a pump that delivers 200 liters/min at a pressure of 120 bar. The given data (discharge and pressure) can fit with several pump-type alternatives.
Use payoff or regret tables for decision making. Prepare a report where in you should first explain the method you will use, solve using excel and finally discuss the results and your decision.
A 90KW Ideal power cycle takes in air at pressure 90kpa and discharges it at 945kpa. Determine the rate of heat input in KW for a brayton cycle.
The regenerator at 125 kPa, and the condenser at 50 kPa. At the boiler outlet, the temperature is 350°C. What percentage of the mass flow rate passing through the boiler is bled from the turbine
What is the optimal number of cases to have on hand to minimize expected total costs in a single week? show your calculations.
There are 4 octahedral sites and 8 tetrahedral sites in the FCC unit cell (stated on slide 17-7), and FeO has the NaCl structure (which is FCC). Can you prove that there are 4 octahedral sites and 8
A spur gear reducer has an 18-tooth pinion driven 1500 rpm by an electric motor and a 36-tooth gear that drives a load involving " moderate shock". Estimate the reliability with respect to bending f
The piston-cylinder system expands to 200°C and 100 kPa. How much work did the Carnot engine produce? Show your work.
If the wall thickness of the tube is 3 mm, What must the diameter be so that the safety factor against yielding (with respect to max shear stress theory) is 1.5?
The coefficient of static friction between the box and the surface is 0.5 and the pulley is frictionless. Determine The minimum rope tension T necessary to hold the box in place The normal force N.
A piston-cylinder containing 1 kg air at 500°C and 500 kPa is connected to a Carnot heat engine where the environment is 25°C and 100 kPa.
If 20 kg/s flows out of the condenser, what is the mass flow rate of the superheated stream, if saturated fluid leaces the heater at 500 kPa?