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Determine the maximum allowable steam pressure at the turbine inlet and calculate the rankine cycle efficiency for these steam conditions. estimate also the mean temperature of heat addition.
During the compression process the relation between pressure and volume is PV1.3=constant. Calculate the work and heat transfer per kilogram, and show this on P-V and T-S diagrams.
A spring is initially compressed from a free length of 8in to a length of 6in, making a net initial compression of 2in. What additional work is done in comressing it 3in more (5 inches total) to a 3
Find the heat transfer and work per unit mass of air in KJ/kg for each process of the two cycles, and compare the thermal efficiency of each. Assume constant specific heats at room temperature, and
Design the heat pump system including the number and depth of wells and layout of the piping system. Compare the cost of the proposed geothermal system.
Determine the work and heat transfer per unit of mass passing through the device in kJ/kg, if the air undergoes a polytropic process with n=1.3.
Air containing 1.6 mol% SO2 is to be scrubbed with pure water in a packed column with a 1.5 m2 cross-sectional area. Calculate NOG and HOG.
Steam enters the turbine in a vapor power plant at 1600 psia and 1000F (State 1) and expands to a pressure of 1 psia. What is the mass flow rate (lbm/hr) of steam through the power plant?
The cyclic device rejects thermal energy to 40 C surroundings. Assume that all proceses are reversible and determine the required power input to the cyclic device.
Design a basic Rankine cycle that uses water, refrigerant-134a or ammonia as the working fluid and that produces the maximum amount of work from this energy source.
What future implications do you see developing? How does the computer application software that you studied in this course impact the Engineering Technology field.
Determine the emission rate of gasoline vapors associated with refueling, in units of grams emitted per gallon of gasoline compound.
A horizontal disc accelerates from rest at 5 rad/sec2. The coefficient of static friction between it and the 2.5-kg block is 0.20. At what speed of the disc will the block begin to slide?
A furnace is hsaped like a long equilateral-triangular duct where the width of each side is 2 m. Can you treat this geometry as a two surface.
A 3500 lb van is moving at 40 ft/sec when it applies its brakes, which locks all four wheels. If the friction coefficient of each tire against the road is .43, determine while the van is braking.
What is the angular acceleration of the pulley once the mass begins dropping? If the mass drops 5 meters to the floor, how long does it take?
The cogeneration plant compleate with pressure and temperatures and the mass flow rates. Show that proposed design meets the power and process-heat requiere of the plant. At least one of each.
The well stirred mixture leaves the tank at the same rate. Does the volume of brine in the tank change with time? Find the concentration of the salt (lb/gal) in the tank as a function of time.
Before entering the furnace, the air is preheated from 32F to 575F. At what rate (Btu/h) must heat be transferred to the air if the feed rate of propane is 1.35*10^5 SCFH?
A pipe at the focal line receives 450 lbm/hr of water at 200 psia and at 100oF and exits at 180 psia. Calculate the pipe exit conditions. Assume concentrator reflective losses of 5%.
If the slope of this line is 0.675 and the y-intercept is 5.55, calculate the time in minutes is required for the reaction to reach 50% completion.
The facility is required to collect all the vented air and route it to a biofilter to control total emissions to less than 30 kg of ethanol per day. Calculate the required control efficiency.
Indirect labor andother overhead is calculated simply at a rate of $5.00/hr, while general office expenses are calculated at a rate of $2.00/hr. What is the manufacturing cost for one pump?
Sketch the P vs. v cycle/diagram for this ideal Rankine power plant (including the P vs. v bell-curve for water/steam and the exact values of P & v at each stage).