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Consider a large plane wall of thickness L=0.4 m, thermal conductivity k =1.8 W/m·°C, and surface area A= 30 m2. The left side of the wall is maintained at a constant temperature of T1=90°C while the right side loses heat by convection to the surrounding air at T=25°C with a heat transfer coefficient of h=24 W/m2·°C. Assuming constant thermal conductivity and no heat generation in the wall, (a) express the differential equation and the boundary conditions for steady one-dimensional heat conduction through the wall, (b) obtain a relation for the variation of temperature in the wall by solving the differential equation, and (c) evaluate the rate of heat transfer through the wall.
In the idealized model attached shown, m = 15 kg, k = 135 N/m, and the viscous damping ratio is 0.15. Assume that an external harmonic force F(t) = 15 cos 4 t acts on the system with F0=15 N and forcing frequency of 4 rad/s.
a cylindrical bar of radius 15 mm and length 100 mm is held at both ends. if at 30 degc no axial force exists in the
Design a process for the manufacture of 10^6 kg per year of mayonnaise. the shelf life of the product is expected to be 1 year. You need to complete the following in your design.
A turbine takes in 2 kg/s neon at 27C and 200 kPa with negligible velocity. The produced work is 75 kW and 30 kW of heat leaks into the turbine from the surroundings. The neon exits at 100 kPa and 230 K. Find the exit velocity of the neon.
A large stationary Brayton cycle gas-turbine power plant delivers a power output of 100MW to an electric generator. The minimum temperature in the cycle is 300K
determine the final temperature °R, and the final pressure in lbf/in^2. Rair = 53.33 ft·lbf/lb·°R. Assume ideal gas behavior and solve problem using.
a satellite is in earth orbit with an altitude at perigee of 555.0 km and an altitude at apogee of 1200.0 km.a. what is
Vector integral - stokes therom, Evaluate the line integral by stokes theorem (clock wise as seen by a person standing at the origin).
A huge reservoir of air supplies a converging-diverging nozzle with throat and exit areas of 10 cm^2 and 25 cm^2 respectively. The reservoir pressure and temperature are 150 kPa and 20C. Determine the range of back pressure over which
A centrifugal pump, weighing 600N and operating at 1000 rpm, is mounted on six springs of stiffness 6000 N/m each. Find the maximum permissible unbalance in order to limit the steady-state deflection to 5mmm peak-to-peak.
Construct a suitable finite element model and compare the FEA predictions with the theoretical data and produce a graph to show the stress distribution
Determine the ideal launch vehicle that can put this orbiter into the parking orbit. (hint: you do not have to consider the Sun in this problem. Only SOI of the Earth and the Moon)
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