Answer / nag

heat transfer is the operation between two mediums.
thermodynamics is the result of a property change after
heat transfer.

Answer / aish

Thermodynamics tells us:
• how much heat is transferred (dQ)
• how much work is done (dW)
• final state of the system
Heat transfer tells us:
• how (with what modes) dQ is transferred
• at what rate dQ is transferred
• temperature distribution inside the body

Answer / manglikrohit

in heat trasfer we check temp diffirance & calculate heat transfer rate
in therodanynamics we check final temp & equilibrum

How can you estimate the efficiency of a pump?

0 Answers  

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How 'saltation velocity' is used in designing pneumatic conveying systems?

0 Answers  

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Question 53 - 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.

1 Answers  

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Calculate the cooling duty, H required to condense and cool acetone from 100 degree Celsius to 25 degree Celsius at atmospheric pressure. The heat of vaporization for acetone at its normal boiling point is 30.2 kJ / mol. The boiling point of acetone at atmospheric pressure is 56 degree Celsius. The flowrate of acetone through the condenser is 100 mol / s = N. Value of sensible heat needed to increase the temperature of acetone in liquid form from 25 to 56 degree Celsius is 4.06 kJ / mol. Value of sensible heat needed to increase the temperature of acetone in vapor form from 56 to 100 degree Celsius is 3.82 kJ / mol. Unit of H is kJ / s.

1 Answers  

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i am a prefinal year student of polymer engineering .could you please send the latest question papers regarding entrace exam.

0 Answers   IOCL,

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What type of pump may be appropriate for a liquid near saturation, a low flow rate, and very limited npsha (net positive suction head available)?

0 Answers  

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How to calculate the release flowrates from pressurized gas systems?

1 Answers   Reliance,

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can hydrogen vent to atm openly from cylinder

1 Answers   Deepak Fertilisers,

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pls send me HPCL & reliance test paper for chemical engineering.....

4 Answers   BCPL, HPCL, NOCL, Reliance,

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colour of flame is blue as well red. why?

1 Answers   Oxford,

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Explain the Deacon reaction?

2 Answers  

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What is the most common cause of solid size segregation in bulk solid systems?

0 Answers   TATA,

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