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95% relative humidity, and cools it to 40 degrees F at constant pressure. What volumetric flow rate of air into the device is needed to produce 10.0 gal/min of condensed water?
Calculate the bubble pressure and the composition of the vapor in equilibrium with a liquid containing 47% "A" assuming ideal solution behavior (i.e. Raoult's Law).
A minimum stress of -20 MPa (compressive stress), if a fatigue life 1.5*10^6 cycles is expected, determine the largest initial crack length that can be allowed.
A hectare is 10,000 m^2. An acre is 43,560 square feet. The UNC Charlotte main campus is 1080 acres in area. what then is the area of the main campus in hectares?
Assume kinetic and potential energy effects are negligible. Determine the change in specific entropy (kJ/kgK) from inlet to exit of the turbine.
Air in a piston-cylinder assembly, initially at 290 K and 100 kPa, undergoes two internally reversible processes in series. Determine the net specific work (kJ/kg) for the overall Process 1-2-3.
he cross section is 2 inches wide and 6 inches hight(vertical). Compute max shear stress that occurs in the bar near the load at the points.
Draw a system diagram and label all the components. Number the flow, starting with a 1 at the pump inlet. Draw a T-s diagram for the isentropic and actual process.
Saturated vapor at 8 MPa enters the turbine of a 100 MW (net power) vapor power plant. Draw a sketch of the system and a T-s diagram for the isentropic and actual process.
After cooling under equilibrium conditions to room temperature, the amount of in the mixture decreases to 68%. Sketch the equilibrium phase diagram.
Consider a mixture of 50 mol% n-pentane and 50 mol% n-butane at 14 bar. What is the dew-point temperature? What is the composition of the first drop of liquid?
We now heat the water from a 200 C reservoir, so the volume becomes five times the initial value. Find the total heat transfer and the entropy generation.
Show that it can be transformed into another differential equation with constant coefficients.if we make the substitution px+q=e^t. change the derivatives from dy/dx to dy/dt.
Find: Addendum, Dedendum, Clearance, Circular pitch, Circular tooth thickness, Base pitch, Length of action, Profile contract ratio, and Module.
Using the AGMA refined approach, calculate the tooth bending stress at the tension-side root fillet of the driving pinion, as well as the tension-side root fillet of the driven gear.
You select from a manufacturer's catalog a shell-and-tube heat exchanger (one pass with two tube passes) having a UA value of 11,600 W/K. Determine the hot water outlet temperature.
A standard deviation of 0.042 inches. Find the bounds of a 98% confidence interval for a mean diameter of all the bearings.
Calculate the composition and temperature of the eutectic melt assuming that the liquid solutions are Raoultian. The actual eutectic occurs at X CaF2 = 0.45 and T = 1243 K.
Calculate the required diameter of a 3 m long stainless steel (annealed) rod subjected to an axial tensile load o f 67 kN. The yield stress is 360 MPa.
The following impedance spectra were acquired at 270 C (closed circles) and 25 C (open circles) for NASICON. Describe the type of electrode used in the cell and draw an equivalent circuit for the cell
Calculate the volume of H2 produced at 1 atm and 298 K. Assume the current efficiency is 100% and that hydrogen behaves as an ideal gas.
What four processes make up the ideal Rankine Cycle? What is happening in an actual power plant during the real processes that are approximated by these idealized processes?
What four processes make up the ideal Otto Cycle? What is happening in an actual engine during the real processes that are approximated by these idealized processes?
Sketch the Pv and Ts diagrams for the cycle and determine the temperature and pressure, at the beginning of the isentropic expansion: P3 & T3.
If the engines run for 10 seconds, What is the final velocity of the probe? What distance did it travel while the engines were on?