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1. A steam power plant operates between the pressure limits of 4.5MPa and 15kPa. Steam enters the pump as saturated liquid and leaves the turbine as saturated vapor. Determine the ratio of the work delivered by the turbine to the work consumed by the pump. Assume the entire cycle to be reversible and the heat losses from the pump and the turbine to be negligible.
2. Air enters an adiabatic compressor at 120kPa and 25°C at a rate of 2.5m3 /s, and it exits at 277°C. The compressor has an isentropic efficiency of 80percent. Neglecting the changes in kinetic and potential energies, determine (a) the exit pressure of air and (b) the power required to drive the compressor.
3. Air is expanded from 1.5MPa and 177°C to 90kPa in an adiabatic turbine. Determine the isentropic efficiency of this turbine if the air is exhausted at 0°C.
a natural gas-fired boiler in a textile plant in sharjah is used to provide steam at 130oc. at times of high demand the
Subject a piece of steel to a case hardening process in which carbon is forced by diffusion through a layer on the surface of the piece. For this purpose, the piece of steel will be placed in a carbon-rich atmosphere in a special furnace.
Complex loading (bending and compression), A steel chimney is 28m high, 1.4m external diameter, and 20mm thick. It is rigidly fixed at the base and is acted upon by a horizontal wind pressure of intensity 1.
A piston cylinder assembly contains a two phase liquid vapor mixture of h2o at 200lbf/in^2 with a quality of 80%. The mixture is heated and expands at a constant pressure until the final temperature of 480 degrees F is reached. Determine the work for..
carbon monoxide is initially in a 50 l tank at 210 kpa and 127c.a determine the mass of the gas in kilograms.b if 0.02
a three-point bending test is performed on a spinel mgal2o4 specimen having a rectangular cross section of height d 3.8
steam at 95 bar and 400 c is supplied in turbine. the condenser pressure is 0.035 bar. if the plant operates as a
at steady state a well-insulated compressor takes in air at 60 degrees f 14.2 lbfin2 with a volumetric flow rate of
a mass of 200 grams of copper whose specific heat is 0.095 is heated to 100deg c and placed in 100 grams of alcohol at
with what type of parametric property modifications and redefinitions made in one module such as a part mode are
consider a large furnace that can supply energy in the form of heat at 2000 r at a steady rate of 3000 btus. determine
A cube 2 ft on an edge has its lower half of material with SG = 1.4 and upper half SG = 0.6. It is fully submerged in a 2 layer liquid (lighter liquid above has SG = 0.9 and heavier liquid below has SG = 1.2). Determine the height of the top of the c..
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