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Explain how the f-chart (Figure 7.32) can be used graphically to determine the solar load fraction for a range of collector sizes once the solar and loss parameters have been evaluated for only one system size. Hint: Consider a straight line passing through the origin and the point (Ps, PL).
Determine the thermal efficiency of the cycle and the net specific work. Assume each turbine stage isentropic efficiency to be 99% and assume the FWH is open.
an unknown refrigerant is used in a refrigerator. a saturated mixure of 30 per cent quality exits the expansion valve
The A992 steel rod is subjected to the loading shown. If the cross-sectional area of the rod is 60 mm2, determine the displacement of B and A, Neglect the size of the couplings at B, C, and D.
a 31-l electric radiator containing heating oil is placed in a 48-m3 room. the room and the radiator oil are initially
a gate in the shape of a quarter-cylinder hinged at a and sealed at b is 3 m wide. determine the horizontal and
Consider a mixture of saturated liquid water and saturated steam at 2 bar and x = 0.95 that is compressed adiabatically and reversibly to 25 bar in an open system. What is the initial temperature and entropy?
to a man walking with a speed of 2 ms the rain appears to fall vertically. if the velocity of rain is 4 ms calculate
a baseball player catching a ball can soften the impact by pulling his hand back. assuming that a 5-oz ball reaches his
a facing operation is performed on an engine lathe. the diameter of the cylindrical part is 6 inches and the length is
1.Discuss whether you think OSHA's air contaminant standards are important, and why. Do you think they are adequate to protect employees in the workplace from airborne contaminant hazards? Explain.
often the assumption is made that the flow of a certain fluid can be less than 2. if air is flowing through a tube such
Calculate the rotation tensor R, the right stretch tensor U, the left stretch tensor v, the right Cauchy-green tensor C, the left Cauchy-Green tensor b, and the spectral representation of F.
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