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Consider the base plate of a 800-W household iron having a thickness of L _ 0.6 cm, base area of A _ 160 cm2, and thermal conductivity of k _ 20 W/m · °C. The inner surface of the base plate is subjected to uniform heat flux generated bythe resistance heaters inside. When steady operating conditions are reached, the outer surface temperature of the plate is measured to be 85°C. Disregarding any heat loss through the upper part of the iron and taking the nodal spacing to be 0.2 cm,
(a) obtain the finite difference formulation for the nodes and
(b) determine the inner surface temperature of the plate by solving those equations.
A 50-kg block of iron casting at 500 K is thrown into a large lake that is at a temperature of 285 K. The iron block eventually reaches thermal equilibrium with the lake water. Assuming an average specific heat of 0.45 kJ/kg · K for the iron, dete..
1 water vapor at 6 mpa 6008c enters a turbine operating at steady state and expands to 10 kpa. the mass flow rate is 2
A compressed liquid mixture of 42 mol percent n-hexane (1) and 58 mol percent ethane (2) is to be fed to a flash tank where the pressure is reduced and a liquid and vapor stream separated. The flashing operation will be carried out at 32°C.
1:Given a specific social movement (such as suffrage, civil rights, or gay rights), analyze how the arts interpreted and responded to the social phenomena.
the concentration of silicon in an iron-silicon alloy is 0.55 wt. what is the concentration in kilograms of silicon per
dry air having a mass flowrate of 2 kgs and a temperature of 300k merges with dry air flowing at 3 kgs and having a
Determine the required diameter dmin of the beam, considering the effect of the beam's own weight.
an aircraft cooling system bleeds air from the engine compressor at 300 kpa and 200 c at the rate 0.09 kgs. the air is
The position of a particle ona straight line is s=2t^2-12t5 (ft), where t is in seconds.
a bicycle rider rides from home along a highway and back along the same road in such a way that her distance from home
A 90 percent-efficient turbine accepts water at 400 kPa in a 16-cm-diameter pipe. What is the maximum power output if the flow rate is (a) 0.08 m3=s, (b) 0.06 m3=s, and (c) 0.04 m3=s? The water is emitted to the atmosphere.
A fluid at a pressure of 3 bar, and with specific volume of 0.18 m^3/kg, contained in a cylinder behind a piston expands reversibly to a pressure of 0.6 bar according to a law, Pv^2=C, where C is a constant. Calculate the work done by the fluid on th..
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