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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).
a particle is moving along a straight line such that when it is at the origin it has a velocity of 8 ms part a if it
Let A, B, C and D denote four reference frames, composed of mutuality orthogonal unit vectors ai, bi, ci and di (i=1,2,3), respectively. Assume that rotation matrices aRc, aRd and bRd are given. Let x, y, z and t denote some specified constants. Give..
what flow rate of natural gas in cubic feet per hour would be required to serve a 150000 btuhr output capacity
a shunt dc motor has ra 0.3 u03a9 and vt 999.9 v. for an output power of 31.6 hp we have nm 1483 rpm and ia 145.8 a.
Water vapor enters a turbine at p1= 5 bar, T1=320? C and exits at p2 = 1 bar. The work generated is measure as 250 KJ per kg of water vapor flowing. Determine the isentropic turbine efficiency.
Knowing that the coefficient of restitution is 0.8 between B and C, and 0.5 between A and B, Determine the velocity of each car after all collisions have taken place.
you are building a small hydroelectric generator for a hospital in a remote village. the hospital needs approximately
carbon dioxide is expanded in a steady flow frictionless process through a turbine from 0.9 mpa to 0.1 mpa. the initial
what is creep failure? is creep failure of a material a concern at high temperatures? if so why? explain how creep
a cylinder 10 feet long has an ouside diameter of 2 inches and a 1mm thick wall. the yield strength of the wall
The ideal regenerative Rankine cycle for a power plant (shown below), where there is no heat loss or pressure drops in the piping, the turbine and pumps are isentropic, the heat loss in open feed water heater (FWH) can be neglected, there are no pres..
consider a simple brayton cycle using air as the working fluid has a pressure ratio of 12 has a maximum cycle
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