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A container filled with 73 kg of liquid water at 99ºC is placed in a 60-m3 room that is initially at 12ºC and 1 atm. Thermal equilibrium is established after a while as a result of heat transfer between the water and the air in the room. Using constant specific heats, determine (a) the final equilibrium temperature, (b) the amount of heat transfer between the water and the air of the room, and (c) the entropy generation. Assume the room is well sealed and heavily insulated.
A steam power plant operates on an ideal reheat-regenerative Rankine cycle with one reheater and two open feed water heaters. Steam enters the high-pressure turbine at 1,500 psia and 1,100 degrees Farenheit and leaves the low-pressure turbine at 1 ps..
a fluid has a viscosity of 17 p and a specific gravity of 0.67. find the kinematic viscosity of this fluid in units of
For mass-spring-damper accelerometer, calculate the mass needed to achieve mechanical noise limit a_rms = 1 nG if the mechanical resonance frequency is to be f=100 Hz.
a 20 mw radial flow hydraulic turbine is to be designed with a head of 70 m and a speed of 90 rpm. a geometrically
a circular specimen of mgo is loaded using a three point bending mode. compute the minimumnbsppossible radius of the
a 0.5m3 rigid tank contains refirgerant r-134a initially at 200 kpa and 40 quality. heat is now transferred untill the
a certain factory manufactures tin cans.it receive an order for 10000 cylindrical tin cans of height 5 inch and
A piston/cylinder device initially contains 0.1 cu. m. of air at 27 C. A very light piston that moves without friction is connected to a spring that is initially at its equilibrium position (no force). The spring constant is 100 kN/m and the area of ..
a flywheel can be considered as being composed of this disk and a rim. the rim weighs 322lb and has a diameter of 24in
A medical investigator is proposing to use radioactive spheres for thermal ablation of tumors. The idea is that the radioactivity will generate heat at a constant, uniform rate, G (J m-3 s-1), that will raise the temperature of the sphere relative to..
a bar of length 2.0 m is made of a structural steel having the stress-strain diagram shown in the figure. the yield
large cylindrical bales of hay used to feed livestock in the winter months are d2m in diameter and are stored
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