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In an experiment, the temperature of a hot gas stream is to be measured by a thermocouple with a spherical junction. Due to the nature of this experiment, the response time of the thermocouple to register 99% of the initial temperature difference must be within 5s. The properties of the thermocouple jinction are k=35 w/m.k, p=8500 kg/m^3, and cp = 320 J/kg.k. If the heat transfer coefficient between the thermocouple junction and the gas is 250 w/m^2.K, determine the diameter of the junction.
Write a paper about Materials for the structure of tanks.
Design a suitable phase-lead controller. You should explain in detail how your design has been developed. Your solution should include Bode plots constructed both manually and using an appropriate package such as MATLAB or Scilab.
a small 4 oz particle is prokected with a horizontal velocity of 6ftsec into the top of smooth circular guide fixed in
Flow of a fluid in a network of tubes (Fig. 2B.12), a fluid is flowing in laminar flow from A to B through a network of tubes, as depicted in the figure. Obtain an expression for the mass flow rate w of the fluid entering at A (or leaving at B) as..
Air is contained in a piston-cylinder assembly, initially at 40 lbf/in^2. And 600R the air expands in a poly tropic process with n=k=1.4 until the volume is doubled. Modeling the air as an ideal gas with constant specific heats,
Saturated liquid water is kept in a piston-cylinder-weight assembly at 100 kPa. Heat is added from a reservoir at 120 C so that saturated vapor is formed. Estimate the absolute availabilities in kJ/kg of saturated liquid and vapor.
A collar (A) that slides along a smooth horizontal bar. The mass of the collar is 14 kg, and the mass of block (B) is 18 kg. The spring constant for the spring connecting the collar to the frame is 700 N/m.
Steam flowing at 3 kg/s through a nozzle operating at steady state expands from the inlet at 20 bar, 280 0 C to the exit at 7 bar, 180 0 C. The inlet velocity is 90 m/s. Neglecting heat transfer, determine (a) the exit velocity in m/s and (b) the inl..
Dry Coke composed of 4% inert solids (ash), 90% carbon, and 6% hydrogen at 40C is burned in a furnace with dry air at 40C. The solid refuse at 200C that leaves the furnace contains 10% carbon and 90% inert, and no hydrogen. The ash does not react. An..
air enters a compersoor operating at steady state at 1.05 bar 300k with a volumetric flow rate of 12 m3min and exits at
What is a typical direction of failure plane w.r.t the direction of loading axis when a brittle material is loaded under?
Find the average error probability for the decision rule in (a) if Pr(X = -1)=1/4 and Pr(X=1) = 3/4.
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