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Lokesh August 5, 2008 14:42

Urea properties
 
Hi,

I am looking for all urea properties. If you source tell me source, it would be fine.

Thanks in advance,


Polly Eda August 7, 2008 03:51

Re: Urea properties
 
if you are looking for properties of urea solution, have a look on the BASF website. keyword 'Adblue'.

Lokesh August 7, 2008 04:52

Re: Urea properties
 
hey thx,

i searched under products. Could not find enough information. And search also for Adblue, still no results. if you could tell me or send a link, i will appreciate.


Polly Eda August 8, 2008 03:06

Re: Urea properties
 
http://www.adblue-service.de/qualitaet.htm

it's in german, but should not be too difficult to understand

Lokesh August 11, 2008 10:58

Re: Urea properties
 
Hey Polly,

Still some of the properties are missing

Heat of vaporization Heat of formation temperature of formation thermal expansion coefficient

All above properties are need to plug in Star-CD.

Thanks again,

From Lokesh

Polly Eda August 14, 2008 04:16

Re: Urea properties
 
use the values of water if you don't know them. that should not be too far away from adblue. Are you calculating the chemistry of urea hydrolysis as well?

Lokesh August 14, 2008 15:36

Re: Urea properties
 
yep i am calculating some thing like this

The heat needed to melt 1 kg of urea solution could be calculated in the following way:

1 kg solution = 325 g urea + 675 g H2O

325 g urea = 5.42 mole urea 625 g H2O = 37.5 mole H2O

5.42 mole x 15.074 kJ/mole = 81.70 kJ 37.5 mole x 6.012 kJ/mole = 225.45 kJ

--------------------

= 307.15 kJ / kg urea solution



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