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Determine the power requirement (W) and volumetric flow rate (ft3/min) for the compressor if the mass flow rate is 2.5 lbm/s, the inlet refrigerant is saturated vapor at a temperature of -10°F
Calculate heat transferred from system. calculate work done by system. and calculate the entropy change of the surroundings.
The isentropic efficiency is 0.85. Determine the exit temperature, the power required, and explain how the problem would be different if it was an adiabatic compressor?
A total of 200btu of heat is transferred while the pressure is hed constant. (a) determine the final temperature of the water and (b) show the process on a T-v diagram.
Find the % liquid by volume such that the water will pass through the critical point when heated sufficiently. what amount of heating (kJ/kg) of water must be done to carry out this process?
Using the ideal gas model with a constant specific heat, Cp, evaluated at the inlet temperature, determine at the exit (a) the temperature, in K (b) the velocity, in m/s
Calculate the net tractive force F required. answer should be at B: P = 193.4 kW, halfway: P= 136.7 kW, F= 6960N.
The pressure is held constant during the process, while the volume is doubled. Determine the current that passes through the resistance heater. (C&B) T2 = 600 K and I = 4.71 amp
Determine the energy loss that will occur if water flows with a velocity of 7ft/s through a gate vlave fully open. What is the energy loss if the gate valve is only half open?
List the values of these properties that Inconel 690 (some will be quantified, some will be qualitative). Seek out another material to take the place of Inconel 690.
The angle between the incline and the horizontal is theta= 30 degrees. Determine the acceleration of A, the acceleration of B, and the tension in the rope after the system is released.
The pressure is held constant during the process, while the volume is doubled. Determine the current that passes through the resistance heater.
Calculate the work done by the gas during these irreversible, isothermal expansions. Compare this result to work done in a quasi-static (reversible), isothermal expansion.
A 2250 L tank contains 5.682 kg of steam at 5 bar. Determine the temperature and Z (compressibility) of steam using: Ideal Gas equation of state. Virial equation of state.
The heater considered is a natural gas furnace whose efficiency is 80 percent. What heater size (in kW input) would you recommend to your client?
Assume that 350 kJ/kg of energy must be removed by heat transfer to freeze water at 0 °C, and that the surroundings are at 25 °C.
Sketch the cycle on p-v coordinates. (b) Evaluate the heat and work for each process, in kJ. (c) Evaluate the thermal efficiency.
Determine the work (kJ) performed by the air in the cylinder on the piston. Determine the work (kJ) performed by the piston on the ambient environment. Neglect the cross-sectional area of the connec
The motor is 15 in long and 10 in in diameter. The A area is the total surface area including sides and ends. Calculate the steady state temperature of motor.
Determine the magnitude and direction of the force exerted on the reducer by the water. The momentum flux correction factor at inlet is 1.03 and at outlet it is 1.0.
Assume the controls are set to heat water to 140 degree F, the inlet temperature of the water is 55 degrees F. What is the minimum time it will take to heat the tank from 55 degree F to 140 degree F
A charged particle with a charge-to-mass ratio of |q|/m = 5.7 108 C/kg travels on a circular path that is perpendicular to a magnetic field whose magnitude is 0.66 T.
Calculate the total supply flow rate (in m^3/s) B)the ratio of the flow rate bypassing the cooling coil. C)the coil cooing load ( in TR). D)The total heating load.
What is the number of turns per meter of length of the solenoid? Note that the solenoid used to produce the magnetic field in this type of system has a length that is not very long compared to its d
There is a current of 3.60 A in the wire. In the presence of a 2.50-T magnetic field, what is the maximum torque that this coil can experience?