Results 1 to 6 of 6
-
14-09-2009, 06:54 PM #1
improving poster
- Join Date
- Dec 2008
- Location
- India, USA
- Age
- 39
- Posts
- 37
- Rep Power
- 0
Refrigerant numbers for Air and aqueous salt solutions
Air
Aqueous Sodium Chloride
Aqueous Calcium Chloride
All these 3 are refrigerants I suppose!!
Do they have specific ASHRAE nomenclature?
Like R-XYZx
What exactly is a Brine Solution? What are the salts which could be dissolved to make Brine?
Do Brine Solution have R-XYZx
-
17-09-2009, 10:16 AM #2
improving poster
- Join Date
- Dec 2008
- Location
- India, USA
- Age
- 39
- Posts
- 37
- Rep Power
- 0
Re: Refrigerant numbers for Air and aqueous salt solutions
Air and Brines doent undergo phase change and hence i assume they are not primary refrigerants.
I assume only primary refrigerants do have R-numbers!!!
Comments please?
-
17-09-2009, 10:58 AM #3
regular poster
- Join Date
- Mar 2005
- Location
- Belgium
- Age
- 58
- Posts
- 110
- Rep Power
- 20
Re: Refrigerant numbers for Air and aqueous salt solutions
Air = R729
in a mixture N2/O2/Ar 76/23/1
Air can undergo a phase change, below -140°C and at 37 bar (or below -191 at atmospheric pressure) it becomes liquid ...Last edited by BESC5240; 17-09-2009 at 11:05 AM.
-
17-09-2009, 03:07 PM #4
improving poster
- Join Date
- Dec 2008
- Location
- India, USA
- Age
- 39
- Posts
- 37
- Rep Power
- 0
Re: Refrigerant numbers for Air and aqueous salt solutions
Thanks a lot.
Originally Posted by BESC5240
What about brines?
Water + Ethylene Glycol
Water + Proplene Glycol
Water + Calcium Chloride
Do they also fall under some category of number?
-
21-11-2009, 09:58 AM #5
Moderator
Site Moderator : and general nice guy
- Join Date
- Oct 2003
- Location
- Belgium
- Age
- 62
- Posts
- 5,630
- Rep Power
- 34
Re: Refrigerant numbers for Air and aqueous salt solutions
No they don't
It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.
-
01-12-2009, 05:46 AM #6
regular poster
- Join Date
- Jul 2009
- Location
- Brisbane
- Age
- 67
- Posts
- 79
- Rep Power
- 15
Re: Refrigerant numbers for Air and aqueous salt solutions
Refrigerant numbers as I have been informed are alotted on the basis that all the constituents that make up the mixture. EG air = nitrogen oxygen etc will all undergo phase change and can be used as refrigerants in their own right. Brines do not fall into this category and therefore cannot be alotted a refrigerant number. There is an R134a based refrigerant "drop in that has been available for many years but has no number. As far as I am aware, this was due to the fact that it contains ethanol which is not classed as a refrigerant and therefore cannot receive an ashrae number.
