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A 20 hp pump with 80% efficiency is used to pump water through a Schedule 40 3-inch pipe made of commercial steel. The pipe outlet is at a gage pressure of 100 psi, and is 350 feet above the inlet, which is at ambient pressure. The total pipe length is 2200 ft. What is the flow rate, in gpm?
Helium is to be compressed from 120 kpa and 340 K to 700 kPa and 460 K. A heat loss of 20 kJ/kg occurs during the compression process. Neglecting kinetic energy changes, determine the power input required for a mass flow rate of 89 kg/min.
Assuming a coefficient of static friction equal to 0.2 at the common surface, find the maximum torque that may be transmitted by the flywheel without slippage.
the hydraulic jack shown below consists of a master cylinder with a diameter of 60mm and a lifting or slave cylinder
How would you calculate the sensible heat, the latent heat, and determine the latent heat of vaporization of the water vapor in this air stream as the air is cooled from 170 F to 48 F?
an orifice meter is installed in a 12 inch ductile iron pipe carrying water at 60 degrees f. a mercury manometer is
argon enters an insulated nozzle at 3.0 bars 1200k 10 ms and exits at 1 bar 800k. for steady state operation determine
An air conditioning unit has two inlet air streams: a stream of return air from the building (2.25 kgs at 25C) and a steam of outside air (0.75 kg/s at 30 C). These streams are blended and then colled by a cooling coil to 20 C.
the breaking strength x kg of a certain type of plastic block is normally distributed with a mean of 1500 kg and a
a string is attached to the drum radius r of a spool radius r as shown in side and end views here. a spool is device
a consider the steady operation of a refrigeration package for a shipping container on a train truck or ship. the
a wind turbine with a 90m-diameter rotor is rotating at 30 rpm under steady winds at an average velocity of 25 kmh.
determine the heat transferred and the work done both in kjkg when saturated water vapor in a closed system is
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