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State any assumptions. A) draw and label a flowchart for this system. b) draw the t-s diagram c) disregarding the pump work, what is the cycle effciency.
water contained in a closed, rigid tank, at 500 degrees C, and unknownpressure is heated until it reaches 100 degrees C AND 70 Kpa. Find the entropy change for the water.
Water at 20c flows for one kilometer through a 8cm diameter wrought iron pipe a 1m^3/min. during this flow passage, the pipe elevation drops 133m. Estimate the pressure drop in this length of pipe.
The stagnation temperature is determined to be 100C. Estimate the air velocity assuming a) incompressible flow b) compressible flow c) discuss the results.
Determine: a. The elastic recovery in a section of 2 inch length after straining to 10% total strain. b. The diameter of the specimen after 10% compressive strain.
Calculate the ideal force required to strain the material 3.5 inches tall if K=100,000 psi and n=0.3. What force would be required if you switches to a perfectly plastic material with a yield streng
If the rod is released from this position, determine a) its angular velocity, b) the reaction at the pivot O, as the rod passes through a vertical position.
How far into the sheet from this high-pressure side will the concentration be 0.5 kg/m3? Assume a linear concentration profile.
Calculate the energy for vacancy formation in silver, given that the equilibrium number of vacancies at 800?C (1073 K) is 3.6 X 1023 m-3.
Does this flow satisfy continuity? If it does, then find the velocity components. Determine the potential function. Sketch some stream lines and potential lines.
If the motor effieciency is 90%, and the brake efficiency is 75%, what is the power input required to the motor? Look up the water parameters required.
The room calculated sensible heat load is 108,000 btu/hr and latent load of 30,000 btu/hr. What is the cooling load in refrigeration tons.
An adiabatic, rigid deposit is divided in two compartments by a piston with diathermic walls capable of sliding without friction. Determine the preasure and temperature on compartments A & B in t
Air enters an evaporative cooler at 1 atm, 36oC, and 20 percent relative humidity at a rate of 4 m3/min, and it leaves with a relative humidity of 90 percent.
Assume a constant pipe resistant coefficient of 0.018. The valves, intake loss and fittings can be represented by K=8.5. Calculate the discharge and the hydraulic power. Check the pipe resistance co
The valve is shut off at the instant when all of the liquid in the tank has vaporized. a) How much refrigerant was added to the tank in kg? b) How much entropy was generated by this process in kJ/K?
Determine the moment of inertia about an axis perpendicular to the page and passing through the pin at O. The thin plate has a hole in its center. Its thickness is 50 mm, and the material has a den
Determine the constant angular velocity that the tank must be rotated in order that the center of the bottom of the tank is exposed. The density of water is 1000 kg/m3.
For a regenerator effectiveness of 85%, determine a) the net power developed, in MW b) the rate of heat addition in the combustor, in MW c) the thermal efficiency of the cycle.
A flat plate of irregular shape has a mass of 4 slugs and a radius of gyration about the z axis of kg = 0.8ft. Calculate the resulting angular velocity of the plate.
Calculate the percentage volume change that would occur if a material were to be transformed from FCC to BCC , Assume the atomic diameters are fixed and the atoms are packed together as rigid spher
Explain how the mechanical strength, melting temperature, and thermal expansion are related to atomic level. Specify how do the relate to each other and the energy between the atoms.
Consider a cold air analysis and use k=1.4/ Cv=0.718 kj/kgK/ Cp=1.005 kj/kgK. Sketch the cycle using a P-V diagram, calculate max pressure, and heat transfer into the cycle per unit mass in kj/kg.
If the snowball just passes over the head of child B and his child C, determine the radius of curvature of the trajectory described by the snowball. a) At point B b) At point C.
Determine time required to reach 80 Celsius while assuming heat transfer coefficient of h=W/m^2*C. Assume both disk's entire surface area is hit by the air flow.