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It is proposed to air-cool the cylinders of a combustion chamber by joining an aluminum casing with annular fins (k = 240 W/m · K) to the cylinder wall (k = 50 W/m · K).
The air is at 320K and the corresponding convection coefficient is 100 W/m2 · K. Although heating at the inner surface is periodic, it is reasonable to assume steady-state conditions with a time-averaged heat flux of qi'= 105 W/m2. Assuming negligible contact resistance between the wall and the casing, determine the wall inner temperature Ti, the interface temperature T1, and the fin base temperature Tb' Determine these temperatures if the interface contact resistance is Rt,c = 10-4 m2 · K/W.
Using whatever numerical techniques appropriate determine a velocity versus time graph of his/her descent. Estimate the amount of free fall time that would be possible that would still allow full deployment of the parachute and a safe landing. Ign..
Des ign Problems, You are required to report on an operating medium to large underground mining operation. Included in your report should be all or most of the items listed below:Production Methods Development Requirements Plans and Sections, Roc..
The air is at 90 kPa and 50°C at the beginning of the compression process. The heat input is 1.5 kJ per cycle per cylinder. Accounting for the variation of specific heats of air with temperature, determine
Vortex shedding can be used to design a vortex flow meter (Fig.). A blunt rod stretched across the pipe sheds vortices whose frequency is read by the sensor downstream. Suppose the pipe diameter is 5 cm and the rod is a cylinder of diameter 8 mm.
A 100-kW, three-phase, 60-Hz, 460-V, six-pole wound-rotor induction motor develops its rated full-load output at a speed of 1158 r/min when operated at rated voltage and frequency with its slip rings short-circuited.
Why do conflicts arise. (three specific words or phrases). List four of the suggested tips for resolving conflict. List three of the attributes of constructive dialogue in the order you think is the most important. Briefly explain your rankings.
Consider the process of heating water on top of an electric range. What are the forms of energy involved during this process? What are the energy transformations that take place?
Write a procedure (make-queue) that produces independent first-in-first-out queue objects, using a message-passing style.
What measurements can possibly be made in order to determine if corrosion is taking place and what is a salt bridge? What purpose does it serve? With respect to ORP analyzer
how to build a earthquake proof building
A 60 TONNE ferry strikes a dock at a speed of 5km/h. What average force does it exert on the dock if it is brought to rest from a distance of 0.45m?
Strength of Materials: Advanced DV01 35, LO2 Thin, Thick and Combined Cylinder Theory: This outcome is assessed using all three of the assignments detailed below. For each assignment you are required to write a report.
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