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Thread Subject:
ammonia-water thermodynamic tables

Subject: ammonia-water thermodynamic tables

From: manmit pantle

Date: 29 Nov, 2010 23:40:05

Message: 1 of 5

Is there any file which gives the thermodynamic properties of ammonia-water mixtures (specifically enthalpy and entropy) at different temperatures, pressures and ammonia compositions. If not, at least at different temperatures and pressures for a specific ammonia composition?
Thanks

Subject: ammonia-water thermodynamic tables

From: Roger Stafford

Date: 30 Nov, 2010 00:07:05

Message: 2 of 5

"manmit pantle" <mspantle@rediffmail.com> wrote in message <id1dkl$lqa$1@fred.mathworks.com>...
> Is there any file which gives the thermodynamic properties of ammonia-water mixtures (specifically enthalpy and entropy) at different temperatures, pressures and ammonia compositions. If not, at least at different temperatures and pressures for a specific ammonia composition?
> Thanks
- - - - - - - - - -
  This is surely the wrong type of newsgroup to give you advice of that kind.

Roger Stafford

Subject: ammonia-water thermodynamic tables

From: manmit pantle

Date: 30 Nov, 2010 07:43:04

Message: 3 of 5

I meant a matlab fille.... and I admit I am new to this, so if this is the wrong group, is there any place where I would get the answer to this?
Thanks again

Subject: ammonia-water thermodynamic tables

From: TideMan

Date: 30 Nov, 2010 08:53:49

Message: 4 of 5

On Nov 30, 8:43 pm, "manmit pantle" <mspan...@rediffmail.com> wrote:
> I meant a matlab fille.... and I admit I am new to this, so if this is the wrong group, is there any place where I would get the answer to this?
> Thanks again

Well, Google would be a good start.

As a matter of interest, I asked Google and one of the hits had this:
Chart 14. Ammonia pressure-temperature relations, for saturated vapor
165
See:
http://www.archive.org/stream/cu31924004628008/cu31924004628008_djvu.txt

It seems to be exactly what you want, though I know nothing about this
subject.

Subject: ammonia-water thermodynamic tables

From: Alexander

Date: 30 Nov, 2010 16:09:07

Message: 5 of 5

Hi,

you could also have a look to www.thermolib.de, which is fairly general thermodynamic library for MATLAB/Simulink and also enables mixture and muliphase-modeling in Simulink.
Examples for NH3/H2O absorption heat pump are available.

Best regards
Alex

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