NATIONAL BUREAU OF STANDARDS REPORT

NBS PROJECT NBS REPORT

1003-20-4891 April ij, 1959 6378

CAPACITY TESTS OP TWO REMOTE AIR-COOLED

SIZE Bj CLASS I REFRIGERANT CONDENSERS

MANUFACTURED BY

DUNHAM-BUSH, INC.

uy

F. J. J, Drapeau and C. W„ Phillips

Air Conditioning^ Heatings and Refrigeration Section

Building Technology Division

to

Mechanical Engineering Division

Headquarters

Quartermaster Research and Engineering Command

Naticks Massachusetts

IMPORTANT NOTICE

NATIONAL BUREAU 0

intended for use within

to additional evaluation

listing of this Report, e the Office of the Directt however, by the Govern

to reproduce additional

Approved for public release by the

Director of the National Institute of

Standards and Technology (NIST)

on October 9, 2015.

or progress accounting documents

is formally published it is subjected

iting, reproduction, or open-literature :rmission is obtained in writing from

. C. Such permission is not needed,

cally prepared if that agency wishes

<NBS>

U. $. DEPARTMENT OF COMMERCE

NATIONAL BUREAU OF STANDARDS
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PRESSURE - ENTHALPY

DIAGRAM

NO SCALE

ENTHALPY (BTu/lb)

NOTE • LABELED IN ACCOPOANCE

WITH A3PE PS Z.4

CONDENSER SPECIMEN

DIAGRAM

Fig 2

Table 1

CONDEN6 ER 3 PECIMEN

mfr. Dunham-Bush. Inc. size - b j nbs no. 139-57, 155-58 class - 1

ITEM PROPERTY REMARKS

coil tube characteristics

/ MATERIAL Copper Type L

2 NUMBER of rows deep 2

3 NUMBER OF TUBES HIGH 32

A NUMBER OF CIRCUITS IN PARALLEL 4

5 NUMBER OF TUBES PER CIRCUIT 8

6 TUBE DIAMETER , 0. D. , IN. 5/8

7 TUBE WALL THICKNESS , IN. 0.042

B TUBE RETURN BEND DIAMETER t O.D. , IN

1/2

9 GAS INLET CONNECTION DIAM . , O. D. , IN. 7/8 7/8 O.D. inlet manifold

10 LIQUID OUTLET CONN. DIAMETER , O. D, IN. 5/8 3/4 O.D. outlet manifold

II VERTICAL TUBE SPACING , IN. S 2.00

12 PRIMARY SURFACE AREA , SQ.FT. 11.18

COIL FIN CHARACTERISTICS

/ MATERIAL Aluminum

2 TYPE OF FIN Embossed Rolled Collar

S FIN SPACING , PER INCH 8 202 Fins

A FIN THICKNESS , IN. 0.010

S SECONDARY SURFACE AREA , SQ.FT. 255.6

COIL DIMENSIONS

' FINNED HEIGHT, IN. K 32.0 Two 16-inch sections

2 FINNED WIDTH , IN. F 23.5 1

| 3 FINNED DEPTH, IN. V 3.0 . . —

A COIL HEIGHT , IN. H 31.0

S COIL WIDTH , IN. W 29.0

6 COIL DEPTH , IN. D 1.5

7 COIL DEPTH , OVERALL , IN. N 10o4

6 FACE AREA , 3Q. FT. 5.7

9 TOTAL SURFACE AREA, SQ.FT. 266.8

i

OVERALL CONDENSER DIMENSIONS

/ WIDTH , OVERALL , IN. A 32.5

2 WIDTH , SHROUD , IN. B 25.8 - ....... j 3 HEIGHT , IN. C 34.1

! A DEPTH , IN. E • o

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