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A wall is exposed on one side to a heat flux of 1.5 kW/m2 which is conducted through the wall. For the following combinations, determine the temp drop through the wall (a) thickness 0.16m and k= 1.4, 15, 25, 45, 210 and 340 W/mK. (ii) Thickness 0.25m and k as above. Plot the temperature drop against the radio (L/k) and also (k/L).
nitrogen n2 initially occupying 0.1 m3 at 6 bar 2478c undergoes an internally reversible expansion during which pv 1.20
A radiator wall measuring 2 m by 3 m (WxH) is held a temperature of 125 °C. Straight aluminium fins (k = 175 W/mK) are to be mounted on the wall. The fins are 5 cm in length and 0.8 mm thick. The system is allowed to convectively transfer heat to amb..
two cylinders are filled with liquid water ? 1000 kgm3 and connected by a line with a closed valve. a has 100 kg and b
A gas turbine engine has a pressure ratio of 10, and the intake air is at 90 kPa and 280K. Both the compressor and turbine have an isentropic efficiency of 100% and a regenerator with an effectiveness of 0.8 is used. The highest temperature in the cy..
an ideal diesel cycle has a maximum cycle temperature of 2300degf and a cutoff ratio of 1.4. the slate of the air at
A drag force meter is used to estimate the wind velocity during a hurricane. A force of 4.8 N is measured by the meter and the meter has a cross sectional area of 16.9 cm2 with a coefficient of drag of 0.66. What is the wind velocity in mph? Let the ..
consider the cuau crystal structure. it can be described as a simple cubic lattice with a basis of cu 0 0 0 cu 1 2 1 2
a 3000lb car is driven down a 5 degree incline at speed of 50mph. highway with radius 400 m and speed of 90 kmh. the
the eifel aqueduct was built in 80 ad to provide water to present-day city of cologne. as one of the longest aqueducts
(a) Draw a schematic of the system and (b) determine if the inventor's claims are true.
consider the following states of biaxel stress 1 sigma1 30 sigma2 0. 2 sigma1 30 sigma2 -15
a boat carrying passengers weighs 1200lbs. if the boat is moving in a circular path with a radius of 40ft and a
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