The Wheeling daily intelligencer. [volume] (Wheeling, W. Va.) 1865-1903, 1891-09-07

Vessels.
w.,r,xaroy, Sept. e.-PensiOn Com
. NA,n Raum has failed in his
nli ;.,,or. to have his refrigerator
t emo adopted by the Navy Depart
,Sns,'I for the new cruisers A commit nit.
mem ~, ~ appointed to investigate the
t ,:..~ was made aie ior the "Rofrigorine." 1t
s. -n.i.,c ,,I Of Captain Montgomery
S S;.,,J Medical Inspector II. NJ. Wells
CSiei Engineer David Smith ana ray
A' The report states that the board met
III, ,bs otfice Of the company in this city
=, ,,,r the appliances were set up for
..Iibition. Raum claimed that the
s"n5srtpl rcfrigerine salt, when mixed
WI, II times its weighto OF water, would
VIA vIa, Inc reirigerating brine which
ioILii Wv i" .be work, and could be recov-
sOJ'1 hy evaporation over and over
amin without material loss oil quantity
Of 4 s''l'1 rs3ort infinitely describes the APP
.,; t"C and says that after Raum's
E'.n ,n,,is Ind been worked a thin layer
" ;,r' wos formed on the surface OF the
,"olJ. and that the formation soon
r ,lS "Ten pounds more oil the SAT-
60 a.ked fol" says the report, and
wa, w., a lang DELAY obtained" This gave
a ~ "n,nnortllnity to analy2e the stuff, the
d. .,Vl, Fbeing stated in tho following Ian
guage: a., troir;,or;na solt'
.bo VS. that il is composed OF nitrate Of
', .o,"onia g7.G7; water, l.33; insoluble
s"r oxide OF iron, etc. !, .7S; sui
,GatS Of magnesium and sodium, y
fSioS5e Of ammonia, a trace; total, 100
r.r cent The nitrate OF ammonia Is
ibs active agent, aud the remaining
constituents al, lave little or no retriger-
ating elect.
.rygRAL EXPERIMENTS WERE MADE.
All sorts Of experiments with the salt
vere tried. The tests were conducted
with great care and exactness. In the
6r.t series OF tests the lowest tempera-
,nre Of The brine was found to be Big,
and in The second series SAP; the low
est mean temperature AZ and 1870, re-
snectiyeIy. The difference between
mean and lowest temperature in the
dr,t instance is 9.S0, and in the second
u.s..
@The results" continues the report,
chow that the water added to the brine
in the first test was lowered in tempera-
tDfe gO6'. In the second 20o, tho mean
being 9O.SOo, or equivalent to sos Their
NAL units per pound Of the salt. This
mirigrrating effect could not DO realized
IN practice, us the water dissolves some
d lie surplus salt in the brine and low
ers the temperature in the first test
5O!' and in the second 3.45o, or u mean
Of ?0.Si per cent, as computed from the
specific heats OF the constituents.
Again, the loss due to transmission
d heat through the plates or pipes was
avoided by bringing the particles in
intimate contact by mixing, and the
time OF absorption Of heat from external
causes was reduced to q minimum. Had
no dissolution Of the surplus salt taken
place and no loss OF refrigerating effect
from transmission or absorption of heat
occurred, the mixture OF five pounds OF
water at the temperature given with
he original brine would have raised
the temperature Of the final mixture in
the first test TO 81. O6, and in the second
to 1925, as computed from the specific
heats OF the constituents.
WHAT TIE REPORT SHOWS.
These results show conclusively that
aiter cooling down the salt and water
necessary to form the brine for the sec
oHi stage OF the work, and allowing iol
unavoidable Losses, no greater refrigerat
Ing effect can be obtained from the brine
than has already been found from the
tests, When water was added TO the
brine the mean Of two trials gave q tota
lirigerating effect OF sos thermal units
II WIS found that 2O.S6 per cent of the
elect was due TO the dissolution OF the
surplus salt in the brine, which could
not be utilized without greatly increas
ing the cost OF evaporation OF the watel
from the brine. Deducting this from
Tie above amount leaves 40.2 therma
gnlts as the reirigerating effect OF sal
dissolved IN the brine. But there art
unavoidable losses due to the transmits
son and absorption OF heat, the amour
depending upon the difference OF TEN
leratnres, thickness Of metal, character
and thickness Of protecting covering
teic,, that must be allowed for, and it i
believed that % per cent is low esti
mate ior these losses, when it is remem
Oered that nearly all ice machines los
Cne'halt or more Of their efficiency il
tropical climates"
The report concludes as follows:
tTst-That there is nothing new il
The use OF reirigerating mixtures 70
Producing cold, and that nitrate OF am
aohla has been used for the purpos
10y over fifty years, but has never here
Io'orc been able to successfully CON
aeie with other methods of refrigera
Scond-Tbat the system is cumbel
some M, and not adapted to icemuking.
lhird-That the space occupied b
l0e materials alone precludes its use 70
vessels J" VI ""'
tourth-That its cost for Refrigerator
Purposes on board OF naval vessel
would be nearly double that Of the d.
Wees now in use.
The board, therefore, does not recon
T..I that it be adopted for use in til
naval service.