Answer / suresh

Plate heat exchangers are pretty widely used In ammonia
refrigeration systems, and they can be much smaller than the
equivalent tubular exchanger. They work best flooded. A
flooded exchanger system needs a way to separate the liquid
from the vapor. A typical system has a vessel which acts as
knockout drum, accumulator and header tank in one, along
with the heat exchanger. Liquid ammonia flows from the
vessel to the exchanger, and liquid/vapor is returned to the
middle of the drum. Vapor is removed from the top of the
drum. The liquid/vapor mixture from the exchanger has a
lower density than the liquid entering the exchanger, so
gravity provides the driving force to circulate the refrigerant.

what is mean by refinery

3 Answers   Reliance,

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What are the reasons of removal of particles from effluent gas?

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Which type of pneumatic control valve is used mostly Either Air to Open r Air to close the value And guys I need reason for your reason

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Explain what are some common precipitating agents used to remove metals from aqueous waste streams?

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what is the melting point of ash?what is value of ash in crude oil?

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could any one plzz give me the placement tech papers taken by iocl,and bpcl in chemical stream..... my id is.... mishra.gaurang@gmail.com

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QUANTUM CHEMISTRY AND CHEMICAL ENGINEERING - EXAMPLE 31.1 : As an approximation, let v = Zc / 137 where v is the radial velocity for 1 s electron of an element, c is the speed of light, Z is the atomic number. For gold with Z = 79, find the radial velocity of its 1 s electron, in term of c and percentage of the speed of light. (b) As an approximation, let A x A = 1 - Z x Z / 18769 where A is the ratio of the relativistic and non-relativistic Bohr radius. Find the value of A.

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y we do not differ b/w atomic mass and atomic wieght? from engrtauseef2008@gmail.com

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X is a solid having a white colour at room temperature. It has a density about 2g/cc. Although it has melting point near 325 degree Celsius, its properties start degrading above 260 degree Celsius. The coefficient of friction is very low about 0.1. It has very good dielectric properties especially at higher radio frequencies. It has a very high bulk resistivity. It is chemically inert. It is also resistant to van der Waals force. It is hydrophobic as well as lipophobic. Creep or ‘Cold Flow’ has been observed in X.

0 Answers   Ford,

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I HAVE BEEN SELECTED FOR IOCL PANIPAT INTERVIEW,ACCTUALLY IAM DOING APPRENTIES TRAINEE IN CPCL.IAM GOING TO ATTEND THE IOCL PANIPAT INTERVIEW.SO PLEASE HELP ME HOW I PREPARE FOR INTERVIEW BY SUBJECT AND ALSO BY FIELD.

0 Answers   IOCL,

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What is the difference beteween in specticle blind and slip plate

1 Answers   ENI,

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why 14.7 pound/inch2 is used in idustries as unit of pressure bcz here not sea level and not a temperature is 0C (zero degree celcius)?????????

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