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A vapor-compression heat pump system uses R-134a as the working fluid. The refrigerant enters the compressor at 0.24 Mpa, 0 degrees Celsius, with a volumetric flow rate of 0.6m^3/min. The compression process is adiabatic to 0.9 MPa, 60 degrees Celsius, and saturated liquid exits the condenser at 0.9 MPa.
Find the following: a.) The power input to the compressor, in kW.
b.) The heating capacity of the system in kW (Qout)
c.) The coefficient of performance
d.) The compressor's isentropic efficiency.
Sketch the frequency response of the system. Overlay the frequency spectrum of the excitation and as you start the system up, increasing Ω from 0 to 60 rpm, what speeds are most likely to excite large amplitude response? Why?
Find the capacity of a cylindrical tank that is 250 feet in diameter and 30 feet high? In the above problem, what is the capacity if the tank is 75% full, and what is the capacity in gallons?
Create a CAD model of the planar robot
Derive eulers equation 1- Derive. From first principles eulers equation from the rate of change of momentum 2- Show by integration how Eulers equation derives Bernoullis equation
Write a paper on Boyle's law and describe Compression and Combustion stroke . Also explain Charles's law and illustrate SI engine and CI engine.
The entrance is inward projecting. What flow will be expected if the gate valve is one-half open?
Find the final state inside the tank, A tank contains 2kg of nitrogen at 10K with a quality of 50%.Through a volume flow meter and valve, 0.5kg is now removed while the temperature remains constant.
What will the ratio of the angle of twist be to that of the hollow shaft if the maximum shear stress in the material of 75 N / mm ^2 and what is the ratio of actual permissible shear stress?
A car and a high -speed trian at constant speeds. three seconds after the train passes under the highway bridge the car crosses the bridge.
To Verify the law for parallelogram of forces, law for triangle of forces and law of polygon of forces. These laws are very useful to calculate unknown forces in very short time.
Lift coefficient (Cl) and lift (L), An airfoil of surface area 1ft squared is tested for lift (L) in a wind tunnel. At an angle of attack of 5 degrees with standard air of density 0.0024 slugs/ft cube at a speed of 100 ft/sec
Prepare a 3-input, 5 bit multiplexer that fits in a 24-pin IC package. Write the truth table and draw a logic diagram and logic symbol for the multiplexer.
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