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In a steam power station, steam flows steadily through a 0.3 m diameter pipeline from the boiler to the turbine. In the boiler, the steam is at 5 MPa and 400 0 C while reaching the turbine it changes to 2 MPa and 3000 C. There is a loss of heat about 9 KJ/kg from the pipeline. Calculate the steam flow rate.
an irrigation pump is used to draw water from a reservoir and deliver it to an irrigation ditch at a mass flow rate of
because of poor lubrification the pulley must overcome a constant friction moment of 12 nm as it rotates. assuming no
a crane is lifting concrete to a construction project where the acceleration of gravity is 31 fts2. if a 400 lbm
a building has a total heating load of 200000 btuhr. the sensible heat factor for the space is 0.8 and the space is to
The microstructure of a copper-silver alloy at 775°C (1425°F) consists of primary and eutectic structures. If the mass fractions of these two micro constituents are 0.75 and 0.25, respectively, determine the composition of the alloy (expressed in wt...
a refrigerator is situated in an insulated room it has a 2-hp motor that drives a compressor. over a 30 minute period
the turntable of a record player rotates initially at the rate 33 revmin and takes 14.07 s to come to rest. what is the
Please provide a general description of non-programmable thermostats, including an explanation of how they work and the best usage for them.
Nitrogen gas at 300 K flows into a well-insulated device operating at steady-state. There is no power supply to this device. The device has two exit streams, 2/3 of the nitrogen (by mass) leaves at 400 K and 1 bar. The remainder of the nitrogen also ..
a gas turbine can assume an ideal brayton cycle has a pressure ratio of 10. it is connected to an electric generator
a 40 cm diameter pipe at 75 degree c is buried in a large block of portland cement. it runs parallel with a 15 degree c
an automobile wheel test rig consists og a uniform disk a of mass ma 5500 kg and radius ra1.5 m that can rotate freely
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