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Your boss asks you to calculate the flow through a natural-gas pipeline. Since it is 26 in. in diameter, it is impossible to run the gas through any kind of meter or measuring device. You decide to add 100 lb of CO2 per minute to the gas through a small 1/2 in. piece of pipe, collect samples of the gas downstream, and analyze them for CO2. Several consecutive samples after 1 hr are:
1hr: 2.0% CO21hr, 10 min: 2.2% CO21hr 20 min: 1.9 % CO21hr 30 min: 2.1 % CO21hr 40 min: 2.0%
(a) Calculate the flow of gas in pounds per minute at the point of injection.
a crane is lifting concrete to a construction project where the acceleration of gravity is 31 fts2. if a 400 lbm
an industrial water shutoff valve is designed to operate with 30 lb of effort force. The valve will encounter 200 lb of resistance force applied to a 1.5 in. diameter axle. what is the required wheel diameter to overcome the resistance force?
Kinetic and potential energy effects can be ignored. Evaluate the work required and the heat transfer, each in kW.
a catheter is a specialised needle intended for long-term insertion into a vein in a patients arm. engineers are
the portion of the truss shown represents the upper part of a power transmission line tower. for the given loading
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an ocean thermal energy conversion power plant generate 300 kw. determine the gpm of cold seawater to be pumped from
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Large stationary brayton cycly gas turbine power plant delivers a powr output of 100MW to an electric generator . Minimum temperature is 300K so T1= 300k max temp is 1600k
a 3000 kg car a and 15000 kg freight car b are moving towards each other with velocities 20 kmh and 10 kmh
an electric-powered water pump must fill up a 50000 gallon elevated water tank in which the water averages 60 feet
the overall volume compression ratio of a reversed carnot cycle working with air as a refrigerant is 10. the
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