MECHANICAL REFRIGERATION 297 
COMPRESSOR» 
— ie £ ——— &. 
2 => © = 
| exrereTaren| 
XI 
co0e000 000 GS 
7 
~N 
F Eveasiope 
ALVE - ~ aeons 7 
9 REFRIGATING Room 
a | = 
Fig. 66.—Showing circulation of ammonia in mechanical refrigeration. 
