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Consider a 1.5m high and 2.4m wide double-pane window consisting of two 3mm thick layers of glass ( k = 0.78 W/m.K ) separated by a 12mm wide stagnant air space ( k = 0.026 W/m.K ). Determine the steady state rate of heat transfer through this double-pane window and the temperature of its inner surface for a day during which the room is maintained at 21C while the temperature of the outdoor is -5C . Take the convection heat transfer coefficients on the inner and outer surface of the window to be h1 = 10W/m2.K and h2 = 25W/m2.K.
a small water droplet of diameter d100 micro meter and temperature tmp 0 deg c falls on a nonwetting metal surface
the image for this problem can be found through this link httpimgur.com0qkehzh please show all workformulas so that i
If the unit can perform its function either in State 1 or 2, find the steady-state availability A for the device.
a temperature scale is defined by the equation tsti lim pi-0 pspi1.36609 as in gas thermomery but now the reaumur
Kinetic and potential energy effects can be ignored. Evaluate the work required and the heat transfer, each in kW.
a 16 kg mass of copper is dropped into an insulated tank which contains water at 20oc and 1 bar. the initial
a closed rigid tank well-insulated contains air initially at 1 bar 300 k. the volume is 2 m3. a stirring rod transfers
An airplane was moving with a velocity equal to 300 mph when the velocity was increased with uniform acceleration to 600 mph in 5 min, calculate the number of miles the airplane traveled during that interval of time.
on a cloudless day the sunlight that reaches the surface of the earth has an intensity of about 1.2 103 wm2. what is
Starting from rest the motorboat travels around the circular path,P = 50m , at a speed v=(0.8t)m/s, where t is in seconds. Determine the magnitude of the boat's velocity when it has traveled 40m. Determine the magnitude of the boat's acceleration ..
Determine a symbolic expression for the total thermal resistance of wall, including inside and outside convection effects for prescribed conditions.
A fireclay brick cube, 10 cm in length is removed from a furnace where it was maintained at a temperature of 500 degrees C. The brick cube is then placed in ambient temperature conditions.
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