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Engineers at the General Electric turbine division are trying to improve an existing adiabatic steam turbine that receives 100 kg/s superheated steam at 10 MPa and 800 oC and after expansion and producing power, the spent steam exits the turbine at 1 MPa and 500 oC. Please help the engineers determine what would be the maximum possible percent increase in the power for the same mass flow rate, inlet conditions and outlet pressure? Also what is the reduction in oC for the exhaust temperature under the maximum power output ?
Cylindrical, steel bar stock (density = 7833 kg/m3, Cp = 0.465 kJ/(kg C)) of 10-cm diameter is heat-treated by drawing it at a velocity of 3 m/min through a 6-m-long furnace maintained at 900C.
Determine the excess pressure inside an 0.5-in-diameter soap bubble floating in air, given the surface tension of the soap solution is 0.0035 lb/ft.
Estimate the maximum number of cars per hour that can travel down two lanes of a highway as a function of speed (ie at 50, 60 , and 70 mph) .for safety purposes the cars must be spaced one car length apart for each 10 mph they are traveling.
a well is contaminant with 340 mg/L of tetrachloride ( perchloroethylene). the water must be remediated to achieve a concentration of 0.2 mg/L ( the detention limit ).
If the amount of heat transfer in the HE unit is 2460 kJ per kg of steam, what is the magnitude of shaft work obtained from the turbine in kW?
A company manufactures a brand of light bulbs with a lifetime in month that is normally distribute with a mean=3 and a variance=1. A consumer buys a number of these bulbs with the intention of replacing them successively as they burn out.
Determine a composite SCS runoff curve number for a 600-acre basin that is totally within soil group C. The land use is 40 percent contoured row crops in poor hydrologic condition and 60 percent native parture in fair hydrologic condition.
Three cylinders from the same mix were tested for strenght. Cylinders A and B were cast in 4x8 molds while cylinder C was cast in a 6x12 mold. The total loads were as follows; cylinder A= 65,200 lbs., cylinder B= 68,550 lbs., cylinder C= 151,190 l..
Determine the mass ratio, For a vehicle in gravitationless space, determine the mass ratio necessary to boost the vehicle velocity by 1600 m/sec
a ball is thrown with a velocity of 25ms at a building. the building is 20m high the man throwing the ball is 40m from
This material is related Geotechnical Engineering, please only answer if you are certain and sure of your answer. An undisturbed soil sample has a dry unit weight of 112 pcf with a specific gravity of solids equals to 2.68.
In order to comply with regulations, an iron/steel sinter plant installs an electrostatic precipitator (ESP) to collect 98% of the 10 ?m particles from an air stream flowing at 2 m3/s
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