Answer / surya

in a cyclone separtor if tangential entry is provided the fluid follows a helical path on the walls of the container because of that the denser particleswere sticke to the walls of the container due the centrifugal force of action there by leavinfg the lighter particles at the middle and will come out from the upper portion of the separator.

What types of valves are recommended for slurry services?

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Explain the common failure mechanism for above ground atmospheric storage tanks?

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What is the maximum permissible Earth to Neutral voltage in an electrical system.

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What is the procedure to estimate the friction factor involved in heat exchanger tubes?

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Why is double the amount of gas collected in one of the test tubes in electrolysis of water than th amount collected in the other? Name this gas?

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What is difference between Overall heat transfer coeficient & individual heat transfer coefficient

4 Answers   CVSR, NFTDC,

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In a triple effect evaporator, the heat transfer for an evaporator is calculated as q = UA (TI – TF) where TI is the initial temperature, TF is the final temperature; U and A are constants. Given that heat transfer for the first evaporator : q(1) = UA (TI – TB); second evaporator : q(2) = UA (TB – TC); third evaporator : q(3) = UA (TC – TF) where q(x) is the heat transfer function, TB is the temperature of second inlet and TC is the temperature of third inlet, prove that the overall heat transfer Q = q(1) q(2) q(3) = UA (TI – TF).

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What are the different characteristics that can affect the flow of bulk solids and how?

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What are some of the consequences of an undersized kettle type reboiler?

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QUANTUM CHEMISTRY AND CHEMICAL ENGINEERING - EXAMPLE 31.8 : (a) Acceptable wavefunction in quantum mechanics in the range of : negative infinity < x < positive infinity, vanishes at least at one boundary. Which of the following is the wavefunction or are the wavefunctions of acceptable theory : P = x, P = | x |, P = sin x, P = exp (-x), P = exp (-| x |)? State the reason. (b) Let linear momentum operator P = -ih d / dz. The wavefunction is S = exp (-ikz) where i x i = -1, k and h are constants. Find the linear momentum of such wavefunction by using the term P x S.

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What is a "saltation velocity"?

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Explain the different ways in which solids can be blended?

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