Answer / sandy

It is good to refer Kerns handbook of HE design. As all
knows HE has several functions like cooler, heater,
eveporator, condenser etc. So based on each kind of usage
the design procedure changes.
But one can say the basic eqaution for all types of HE
design is Q = U A Dt.

For more details refer Kern's handbook.

Answer / shekhar

This answer is correct

Answer / prathmesh gujarati

First of all find out the Heat Duty for both service as well
as process fluid. The next step is to find our Lmtd. And
finally find out the Over all heat Transfer Co-efficient and
than Heat Transfer Rate.

What effect does choking a vertical thermosiphon have on the heat transfer rate?

0 Answers  

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Question 106 - In a wavefunction, let P(x) = A cos kx + B sin kx. By using the boundary conditions of x = 0 and x = l, where P(0) = P(l) = 0, prove by mathematical calculation that P(x) = B sin (npx / l) where p = 22 / 7 approximately, n is a rounded number. A, B and k are constants.

1 Answers  

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What is fuel requirement of 20kg/hr of incineration having material calorific value 6500 kcal/kg and diesel calorific value 10707 Kcal/Kg (PCC=850 degC and SCC 1050 Deg c)

0 Answers  

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hi sir/madam i need placement paper of last years of DRDO in chemical sream...... send me the question paper as soon as possible on my email address praveen.zone@gmail.com

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In a Furnace arch pressure is more than Hearth pressure,then how flue gas travels to stack

0 Answers  

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Repected sir/Madam, I am goingb to face IOCL technical as well as HR interview, can you forward your hellpfull hand for toward me to sort out my problem by giving some imp interview quetion which is generally asked in chemical industries such like IOCL,HPCL,ONGC,BPCL,RIL,etc I will always thankfull to you,for sharing your profficient knowledge with me and making me somewhat technically sound

0 Answers   IOCL,

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ACCOUNTING AND FINANCIAL ENGINEERING - EXAMPLE 34.18 : An investor is planning to purchase a small office for biochemical engineering consultancy on loan. In the calculation of the discount of payment in arrears, the following formula is used : y = 1 / (1 + r) ^ 1 + 1 / (1 + r) ^ 2 + 1 / (1 + r) ^ 3 + ... + 1 / (1 + r) ^ n where y = present value, r = interest rate of discount, n = number of payment, ^ = power used in certain computer languages for mathematics. (a) What is the meaning of : arrears? (b) Find a mathematical equation of y (1 + r). (c) Calculate, in less than 3 terms, y as a function of r and n.

1 Answers  

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design calculations for reactor

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what is the use of pressure filter?

7 Answers   TATA,

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what is ifference between PFR ,MFR and batch reactor?

9 Answers   BARC, IOCL,

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What are pcbs?

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ENGINEERING MATERIAL - EXAMPLE 12.3 : Let a ^ 2 = a x a and a ^ 3 = a x a x a where ^ is power function. Niobium is a metal with a body-centered cubic structure. The length of the unit cell structure is b = 0.3349 nm. (a) Find the volume for a unit cell structure for niobium. (b) There are 2 atoms per unit cell structure of niobium. The metal has a molar mass of 92.9 g / mol. One mole of the metal consists of 6.02 x 10 ^ 23 atoms. Find the mass of niobium per unit cell and the density of niobium.

1 Answers  

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