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It is proposed to cool 64?C air as it flows, fully developed, in a 1 m length of 8 cm I.D. smooth, thin-walled tubing. The coolant is Freon 12 flowing, fully developed, in the opposite direction, in eight smooth 1 cm I.D. tubes equally spaced around the periphery of the large tube.
The Freon enters at -15?C and is fully developed over almost the entire length. The average speeds are 30 m/s for the air and 0.5 m/s for the Freon.
Determine the exiting air temperature, assuming that soldering provides perfect thermal contact between the entire surface of the small tubes and the surface of the large tube.
Criticize the heat exchanger design and propose some design improvement.
a system consists of carbon monoxide co in a piston- cylinder assembly initially at p1 200 lbfin2 and occupying a
Module FEA - FINITE ELEMENT ANALYSIS , Provide answers to all questions. Note that assignment part 2 carries 60% of the marks for the course.
A steam power plant operates on a simple Rankine Cycle between the pressure limits of 10MPa and 50kPa. The mass flow rate of the steam is 50kg/s. The quality of the steam at the turbine exit is 90%.
The x and y components of velocity for a two-dimensional flow are u = 5y ft/s and v = 4 ft/s, where y is in feet. Determine the equation for the streamlines. Use C as constant. Round all numbers in answer to 3 significant digits.
determine the mass of methane gas stored in a 2 m3 tank at ?30degc 3 mpa. estimate the percent error in the mass
a closed system consisting of 2lb of a gas undergoes a process during which the relation between pressure and volume is
a heavily insulated piston-cylinder device contains a gas which is initially at 5 bars and 187 degc and occupies 0.1
A reversible engine ‘A' absorbs energy from a reservoir at temperature 1 T and rejectsenergy to a reservoir at temperature 2 T .
A tire of a car having a volume of 0.6 m^3 contains air at 280 kPa. Determine the mass of air in kg contained in the tire at 25 degrees Celsius.
a new building to be located in a cold climate is being designed with a basement that has an l200 mm thick wall. inner
the total electrical generating capacity of the united states was about 1039137 mw in december 2011. assuming there
a pressure transducer exhibits a temperature sensitivity of 0.05 units per degree celsius and a pressure sensitivity of
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