Removing water vapour?

[Josh101]

What is the best method of removing water vapour as i need to get air that is 97% dry?

Any ideas welcome thanks for your help

 

[NickStone]

A dehumidifier?

 

[Diyisfun]

A dehumidifier?

And a sealed room I would think

 

[Josh101]

Would a dehumidifier work as its not 'air' that i need to remove water vapor from its mildy acidic flue gases?

 

[JohnD]

very wise of you not to tell us what you are doing and what you actually need.

that approach is guaranteed to get you the best help

This is a homework question from your college course, isn't it?

 

[Josh101]

ye i now i should have really said but wanted ideas straight away.

HA no its not i question for my collage home work but admittedly i am an apprentice and this is a task i have been given for my NVQ.

I have tried using calcium chloride to remove the water vapour but this method needed to much maintainance so then i tried using a plate heat exchanger and having cold water going through one side and the gasses going through the other hoping to condence the water out but it just wasn't cold enough. after this i used a peltier module to cool down a Coil (5 degrees C) and run the gases through this but this is only 78% efficient so now i am stuck for ideas.

 

[Diyisfun]

A de hum, removes the water from the air, not the air.

 

[Josh101]

How much would a dehumidifier be bearing in mind i would only need a small one.

thanks Diyisfun

 

[JohnD]

how small?

You really aren't giving ANY information

Is it a gas fire where you want to keep the flue dry to save the expense of fitting a liner?

Or a condensing gas boiler where the plume is a nuisance?

Or the exhaust of a car?

Or a coke-burning furnace?

Or a crematorium?

Or a fossil-fuel power station?

Or a flueless gas heater in a boat?

Or a potters kiln?

Or a foundry?

Or fumes from welding equipment?

 

[JohnD]

would this one do?

 

[Josh101]

Sorry.

lol no i am only pumping 5 L/M

and it is the flue gases from a gas boiler (condensing and convention)

 

[Diyisfun]

De hums are not taht dear, but to see if it will work you could hire one.

 

[bernardgreen]

If you hire one make sure the company know it is for flue gas so they hire you a suitable one.

Other wise you may get a repair bill for the damage done by the corrosive condensate from the gases.

 

[Josh101]

O right thanks for the help