For those interested in small hole technology.
Water and Ammonia should be fairly close in flow rate. At 0.01 moles/sec (0.18 grams/sec)
with 1.60 " Hg (94 F) high side and 0.80 " Hg low (condensing side at 73 F) gives the orifice
diameter as 0.048647 inches.
Is drawing on technology that Hero came up with almost 2,000 years ago considered
" Back Engineering"?
Frederick
