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A 14 cm high vertical surface is heated by condensing steam at 1 atm. If the wall is kept at 30?C, how would the average heat transfer coefficient change if ammonia, R22, methanol, or acetone were used instead of steam to heat it?
How would the heat flux change? (Data for methanol and acetone must be obtained from sources outside this book.)
the tension in the string attached to 0"50 kg.
1. an aluminum casting that weighs 10 pounds sits on a steel surface. how much force will be necessary to get it to
Electric power is to be generated by installing a hydraulic turbine-generator at a site 120m below the free surface of a large water reservoir that can supply water at a rate of 1500 kg/s steadily. Determine the power generation potential.
A Carnot heat engine operates between two reservoirs at temperatures of 400 K and 500 K,. What is the ratio of the work output to the heat rejection?
an isentropic steam turbine processes 5kgs of steam at 4 mpa which is exhausted at 50 kpa and 100degc. five percent of
compressed liquid water at 42 c and 8 mpa steadily flows into a boiler and exits as a saturated vapor at 8 mpa. the
Draw the stress distribution along the walled thickness and discuss whether the composite with the applied pressure is safe or not by using von-Mises and Tresca theory.
a homogeneous cylinder with weight g and radius r lay on a roughnbsphorizontal floor and adjoins to a rough vertical
a car tire pressure is 2.2 bar at 25 c. if the temperature drops overnight to 5 c and if the atmospheric pressure is 1
determine the volume required to store 25kg of ethane at 320kpa and 35 degrees celsius. if the temperature rises to 65
liquid sodium leaves a nuclear reactor at 80 degrees celsius and is used as the energy source in a steam power plant.
water is flowing in a 2cm radius pipe with a parabolic velocity profile vxrvmax1-rro2 where ro is the radius of the
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