Transactions Society Naval Architects and Marine Engineers, Vol. 28, 10920. : Plate 45 
To illustrate paper on “Surface Condensers, 
by Luther D. Lovekin, Esq., Member. 
MACHINERY INSTALLATION AND OUTFITTING DIVISION. Mayizom 1920.) 
—— Oe 
TEST FOR EFFICIENCY 
° . < HULL NO. 670. 
From Three Hour Readings Token from Three Hour Full Speed Natural Draft River Thal, ee 
From Two and One Half Hour Readings Taken From Three Hour Full Speed Induced Draft River Trial, 
Draft = Forword, \7!0". Aft, 2149 Mean I9‘4k™ 
Propeller !- Diam. 18'6' Pitch 17.086 FT. 
! 
1 ” 
Lal ENGINE ROOM LOG SHEET "CG" 
! ! VACUUMS | | TURBINE EXHAUST. | "V" Indicctes 
E TEMPERATURE OF ; a 
| | [$= —= —————S COOLING WATER, i ; position of 
Sree] pred PORT SIDE, CONDENSER,| TOP OF CONDENSER, | STBD, SIDE,CONDENSER| STEAM eee meet os RE 
i H pine Dev TURBINE!) R.PM. ON ONDEUSATE! Mercury oolurnns 
} CTOR, EXHAUST, |IURCULATOR DISCHARGE} RADOJET. rVe i 
| fRApOJET] SUCTION.) FT. | CENTER. |FORWARD| AFT. | CENTER.|FORWARD) AFT. | CENTER. |FORWARD, | SEA. | ovERBOAR®! feEVacuume 
| | 
| ; PM ] NATURAL DRAFT. i i 
i | i2. 49. = 28.87 29. 00 26.86 29.03 28.92 28.30 28.80 28.8! 29.02 26.8! 28.95 a 59.5 78 
ig fo - 29.4 |20.04 | 28.96 | 28.82 | 28.98 |28.87 | 28.85 | 28.78 | 26.78 | 28.98| 28.77) 29.00 |] 235 59 76 Hl | 
\.49 | 30.07 |29.¢ |26.87 | 29.00 | 26.85 | 29.02 |28.90 | 26.89 | 28.60 | 28.82 | 29.00| 28.80] 29.00 |} 245 58.5 76 ie 
| 2.19 |30.07 |z9.5 |ze.90 | 29.02 | 28.87 | 29.00 |28.92 | 2e.00 | 28.82 | 28.84 | 20.01/ 28.81 | 28.95 |] 250 58.5 we | ‘ 
2.49 |30 09 |29.6 |26.e5 | 28.98 | 28.85 | 28.90 |28.90 | 28.90 | 28.80 | 28.83 | 29.02| 28.80] 28.85] 2-0 58 77 
| 3.19 |30.09 |29.6 | 28.85 | ze.98| 28.85 | 28.96 | 28.92 | 28.98 | 28.02 | 28.85 | 29.00| 28.80] 28.95]/ 250 57 1 
| 3.49 hes 29.6 |28.90 | 29.01 | 28,9 | z9.05 |28.95 | 28.93 | 26.84 | 26.83 | 29.03| 28.84] 28.97 |] 260 57.5 7 
AVG so.o8 |29.55 | 28.87 | 26.99 | 28.66 | 28.99 |28.91 | 28.90 | 28.81 | 28.62 | 29.01 | 26.80| 28.95] 245 58.3 76.6 
| corr. | +0.12 | -0.07| +40. 10 | -0.07 |+0.03 | +0.05 | +0. 16 | +0.13 | -0.09| 40.10 
CORR. 
| ava. 30.08 | 29.55 | 26.99 92 | 28.96 | 28.92 |28.94 | 28.05 | 26.96 | 28.95 | 28.92| 28.90| 28.95 |] 245 58.3 7.6 | 
| f H 
| | INDUCED DRAFT. | | 
| 4.19 30:08 29.6 |ze.88 | 29.00 | 28.92 | 29.08 |28.92 | 28.90 | 28.82 | 28.80 | 29.08] z28.89| 28.98 || 245 s7 76.5 | 
4.49 |$0.03 | 290.7 | 28.85 | 26.98 | 28.80 | 29.00 |28.86 | 28.88 | 28.60 | 28.70 | 29.00] 28.8! | 28.90]/ es55 57.5 Ape Gris het PLAN OF CONDENSER 
| 5.19 | 30.02 |z9.7 | 28.87 | 29.01 | 28.86 | 29.04 |28.90 | 28.90 | 26.80 | 28.e1 | 29.02! 28.e1| 29.90]} 250 | se 16 Sse! ree BLAN_OF CONDENSER. 
5.49 | 30.0z |29.6 |28.89 | 29.04 | 28.88 | 20.05 |28.02 | 28.91 | 28.82] 26.83 | 29.03| 28.03) 28. 92]} 275 59.5 cit | NMescupy Coens: ——— 
6.19 20.02 |29.6 |26.80 | 28.92 | 28.90 | 29.02 |28.82 | 28.e5 | 28.78 | 28.76 | 29.00| 28.80] 28.97}] 275 co 78.5 Ford. Cerrter & AF T.———— 
6.49 | 30.02 | 29.6 |2z8. 78 | 28.90| 28.88 | 29.00 |26.81 | 28.80 | 28.73 | 28.72 | 28.99/ 28.60/ 28.89 i 265 60 78 : 
I I 
| AVG. |} 30.03 | 29.63 | 28.85 | 28.96 | 28.87 | 29.03 |28.87 | 20.87 | 28.79| 28.79 | 29.02| 28.82] 28.93]] 260.8 | 58.7 77.2 
} corr. | +0. 12 | -0.07|+0.10 | -0.07 |+40.03 | +0.05 | +0. 16 | +0.13 | -0.09| +0. 10 | 
CORR. i 
| AVG 30.03 | 29.63 | 28.97 | 26.91 | 28.37 | 28.96 |z8.90 | 2e.92 | 28.05] 28.92 | 28.93| 28.92] 28.93]] 260.8 | 58.7 77.2 | 
3 Gonnections here for 23 Connections here, 
\ Mercury Columns; for Mercury Glurnns 
| Ford, Center & Af+.—— ford, Center & APE 
Poa cum Ena inesteco Mt Ld macineatia'AY The Overboard Dischonpe Temperature was token neor 
for Lubrication Oil Data,ond Turbine Bearing Temperatures, see Sheet "B” pabepaies Ole Pade ie ore pales See 
r. in 
— : =) Condenser was cooling all exhaust steam from a G.E. Turbine, ee 
For Fire, Log, See Sheet *D" rated 6000 S.H.P., mii atecr consumption, of |2 Ibs. per S.H.P., at Dry Buctlon 
5 F 7 equalling 72,000 lbs, of stearn condensed per hour. 
Forward Redojet, only, was used throughout the trial. Ansumingp that Circulating Pump delivered 7.774 gallons of water 
i ‘ i len o Oh, AFTER END OF CONDENSER. 
per minute, 54 lbs.of circulating water condensed One Found F Steam . Sasi: pea a ahaa enct iercany Gites 
Simultaneous Readings 
