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A 1000 ft long metal duct is used to transport heated air from one side of a plant to another. The duct is 24in high by 36in wide. The heated air's temperature at the inlet of the duct is 170 F and the volumetric flow rate is 15,000 CFM. If the ambient air is 74 F and the heat transfer coefficient on the outside of the duct is 1 BTU/hrAft2R, determine the temperature of the air at the outlet of the duct.
air at 40 degree celsius enters a mixing chamber at a rate of 225 kgs where it mixes with air at 15 degree celsius
The Young's modulus of steel is higher than that of Al (29.0 x 106 psi vs. 10.5 x 106 psi). However, for many applications such as automotive and aerospace a more important quantity is the "specific modulus," or modulus/density. Determine the speci..
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
1 a highway patrol officer on the ground uses a radar gun to measure the speed of a suspects car to be 60 ms. a patrol
helium at atmospheric pressure and 30 degc flows across a square plate at a free stream velocity of 15 ms. calculate
SO3 has many uses including the production of sulfuric acid (H2SO4). A gas stream having the (molar) composition shown in the figure below is to be passed through a two-stage converter. The fractional conversion of SO2 to SO3 (per single pass) in the..
an irrigation pump is used to draw water from a reservoir and deliver it to an irrigation ditch at a mass flow rate of
Water is boiled at sea level (1 atm pressure) in a pan placed on top of a 2-kW electric burner that transfers 60% of the heat generated to the water. Determine the rate of evaporation of water in kg/s.
a 1 hp electric motor drives a water pump. the pump volumetric flow rate is 2103 m3s at 300 k.a determine the head loss
a certain factory manufactures tin cans.it receive an order for 10000 cylindrical tin cans of height 5 inch and
if a case of light bulbs contains 1200 bulbs and the probability that any one bulb is defective is 0.015 estimate the
a forty pound tool box 1 ft wide x 2.5 ft high is in the bed of a pickup truck. the coefficient of friction between the
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