Ammonia: An Excellent Alternative

Purdue University
Purdue e-Pubs
International Refrigeration and Air Conditioning
Conference
School of Mechanical Engineering
1988
Ammonia: An Excellent Alternative
G. Lorentzen
Norway Institute of Technology
Follow this and additional works at: http://docs.lib.purdue.edu/iracc
Lorentzen, G., "Ammonia: An Excellent Alternative" (1988). International Refrigeration and Air Conditioning Conference. Paper 60.
http://docs.lib.purdue.edu/iracc/60
This document has been made available through Purdue e-Pubs, a service of the Purdue University Libraries. Please contact [email protected] for
additional information.
Complete proceedings may be acquired in print and on CD-ROM directly from the Ray W. Herrick Laboratories at https://engineering.purdue.edu/
Herrick/Events/orderlit.html
li Lorentzen
of Technology
NTII, 7034 Trrmdhcim. Nor\\'ay
Nun•.cav
[n~tlllll'-'
Ab_WJCl
Ammonia ha~ been used a~ a refrigerant for more than 100
years m absorption
as \\-ell as compre~sion systems, so there is a tremendous
amount of rracllcal
expenence_ Today it ts applied largely in heavy mdustn al plants
with rec1procming
or screw compreswrs. It has a numlwr of tmportant <tdvanta
ges related to ILS low
molecular weight and high evaporation ~nthalpy, some of wh1ch
are not as yet fully
exploited The problems due to its toxtcily and flam mabtllty
are often overe~~t1mated
and can be east!y controlk>d hy suitable d~sign_
·--- ---- ---L AMMONIAC, LINE EXCELLENT£ ALTERNATIVE
RESUME L ammoniac a ete uu!Jse com me f!u1dc fngorigene
de puis plus de cent ans
une large experience pratique lui est associee. Aujourd'hui
it est largement
appltquc dans Jes installations mdustneUes avec des compresseurs
a piston ou a vis_
I! prcsent e de nombreux avantages dont certains encore non
utilises:
- Masse molatre re!ativement fa1ble, done une enthalpie d evapora
tion e!evee et
de faibles pcrtes de charge dans les soupapes ct condunes.
- Line pression crit1que e!evcc_
ExceUent transfer t de chaleur en evaporation et condensation_
Detection des fuites facile, etc.
Les probiCmes associes a sa toxJcttc ct son inflammabtlitc sont
souvent surcstimes et
pcuvent etre atsement controles
N
This paper appear s in the July 1988 issue
of the IJR.
on pago 248.
141