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Do Problem 6.197E using refrigerant R-134a instead of R-410a.
Problem 6.197E
Consider a Carnot-cycle heat pump with R-410a as the working fluid. Heat is rejected from the R-410a at 110 F, during which process the R-410a changes from saturated vapor to saturated liquid. The heat is transferred to the R-410a at 30 F.
a. Show the cycle on a T-s diagram.
b. Find the quality of the R-410a at the beginning and end of the isothermal heat addition process at 30 F.
c. Determine the COP for the cycle.
The floating platform shown is supported at each of its four corners by a hollow sealed cylinder 1 m in diameter. Each cylinder weighs 1.2 kN per meter of length. If the length of each cylinder L is as shown in the diagram below
each month the splendid dry cleaning company buys one barrel ( 42 gal., 0.160 m^3) of tetrachloroethylene (C2Cl4) (M.W.= 166, p= 1.594 g/cm^3) ninety percent of the fluid is lost to the atmosphere and 10% remains as residue to be disposed of.
The P.C. of a 3 degree curve, whose degree is based on a chord of100 ft. arc, is at Sta. 19+39.60 and the P.T is at Sta. 25+64.60. Calculate the deflection angle from the tangent at the P.C to each100-foot station on the curve and to the P.T.
A 4 X 8-ft solar collector has water circulating through it at the rate of 1.0 gallon per minute while exposed to sunlight with intensity 300 Btu/ft^2-hr.
One hundre cubic meter of gas at-34.6c celcius and 200kpa in absolute pressure is compressed to a volume of 25 cubic meter and an absolute pressure of 1000kpa. what is the new temperature, in degrees celsius?
A Parshall flume with a throat width of 2.50 feet is used to measure discharge. If the measured depth, H, is 1.8 feet, what is the discharge? Need to know how to solve for the discharge.
The aquifer is inhomogeneous with K = 12+0.006x, where x =0 at point 1, and the piezometric heads at point 1 and 2 are 14.2 m and 18.8 m, respectively measured above the upper confining layer.
A rectangular channel 5 m wide carries a discharge of 10 m^3/s at a uniform depth of 3 m. The channel is running on a slope of 0.0025 m/m. Estimate wall shear stress and friction velocity. Assume the density of flowing water as 1000 kg/m^3.
A waste heat source is available at 400°C. A heat engine operates using heat from this source. It rejects heat to the surroundings at 38°C. The power from the engine runs an air conditioner to keep the air inside a building at 25°C
Art Arfons, a K-State-educated engineer, has made a considerable fortune. He wishes to start a perpetual scholarship for engineering students at K-State.
One liter of a solution is made by adding 3grams of acetic acid (HAc) to distilled water. The molecular weightof acetic acid is 60.052. The acid dissociation constant for aceticacid
Doubling the length of a truss member increases its Euler Buckling capacity by a factor of 4
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