Answer / Varun Sachdeva

To minimize shell side pressure drop in a shell and tube exchanger, one can consider the following strategies:
1. Increasing the shell diameter or number of tubes (within practical limits) to reduce the velocity of the fluid on the shell side.
2. Using smaller baffle cuttings to enhance turbulence and improve heat transfer without significantly increasing pressure drop.
3. Optimizing the tube layout and orientation to promote flow mixing and prevent channeling or bypassing.

What is a good approximation for the heat transfer coefficient of hydrocarbons inside 3/4" tubes?

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If sum one has HAL placement paper plz mail me ,I m Chemical Engg.my id is er.kotnala@gmail.com

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Why whenever a reciprocating compressor is switched ON or OFF it is put into unloading mode?

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What is Pinch Technology?

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Question 27 – By using Excel or other easiest programming package, explain how I, the integral of sin x dx from 0 to 3.142 could be approximated using random number. Find the exact value of I.

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ACCOUNTING AND FINANCIAL ENGINEERING - EXAMPLE 34.33 : An engineering corporation that produces a type of healthy food has A number of shares of $B preferred stock and C number of shares of $H common stock outstanding. In a typical financial year, let the net income obtained = D. The amount retained by the corporation = E. (a) Calculate the amount of money distributed to the shareholders if : (i) D > E; (ii) D = E; (iii) D < E. (b) Let preferred dividend = F, common dividend = G, CH > G. Find the values of F and G, in term of A, B, D and / or E when : (i) (D - E) > AB; (ii) (D - E) < AB; (iii) (D - E) = AB.

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ENGINEERING ECONOMY - EXAMPLE 7.2 : In the purchase of a machine with a period n = 8.5 years, the minimum attractive rate of return, i = 12 %, the cost P = $55000, F = $4000 is the salvage, annual maintenance A = $3500. The return of the investment or equivalent uniform annual benefit is $15000. The equivalent uniform annual cost is P (A / P, i, n) + A - F (A / F, i, n). The investment is considered acceptable only when equivalent uniform annual benefit is greater than the equivalent uniform annual cost. From the compound interest table, (A / P, i = 12 %, n = 8 years) = 0.2013, (A / P, i = 12 %, n = 9 years) = 0.1877, (A / F, i = 12 %, n = 8 years) = 0.0813, (A / F, i = 12 %, n = 9 years) = 0.0677. Prove by calculations whether the investment above is acceptable.

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Corenuts technology interview questions

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What industries require filtered compressed air?

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What are the customization steps in sap?

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