6 replies to this topic

[morvenlight]

hi every1,

if we are adding 200 liters of water after every 8 hours in a system to generate steam in a reboiler, then how much steam will be produced by adding this amount of water.....any1 has idea for steam calculation...the reboiler temperature is 240F...

[Eprocess]

You should learn to use steam tables. Find the properties of saturated 240 F steam form the link below:

http://www.spiraxsar...rated-steam.asp

you can calculate the volume of the produced steam using Specific Volume of Steam (v_g).

[morvenlight]

Eprocess,


thanks for your reply...i have visited your marked link...can you please tell me what pressure is it asking for?is that reboiler pressure?

[Eprocess]

The steam is saturated, so only one pressure point corresponds to 240 F. Change the input drop down menu to saturation temperature and there you go.

[S.AHMAD]

1. Do a mass balance assuming constant liquid level in the reboiler
2. Assuming the water density is 1 kg/l, and no blowdown then 200 liter is equivalent to?
3. Take the average over the period of 8 hours
4. What will be the answer?
5. The answer will be the average steam production rate

Edited by S.AHMAD, 01 November 2011 - 02:13 AM.

[Profe]

Hi Morvenligth

You have to review your similar post in Refining, Hydrocarbons Oil & Gas, because you speak about MDEA regeneration and that is the clue for this problem.

Edited by Profe, 08 November 2011 - 02:32 PM.

[pankaj shah]

hi every1,

if we are adding 200 liters of water after every 8 hours in a system to generate steam in a reboiler, then how much steam will be produced by adding this amount of water.....any1 has idea for steam calculation...the reboiler temperature is 240F...

If you are adding 200 litres/every 8 hours & if the liquid level in the reboiler does not change, then you have produced 200 kgs steam in 8 hours.