NATIONAL BUREAU OF STANDARDS REPORTNBS PROJECT NBS REPORT

1003-20-4891 April ij, 1959 6378

CAPACITY TESTS OP TWO REMOTE AIR-COOLEDSIZE Bj CLASS I REFRIGERANT CONDENSERS

MANUFACTURED BYDUNHAM-BUSH, INC.

uy

F. J. J, Drapeau and C. W„ PhillipsAir Conditioning^ Heatings and Refrigeration Section

Building Technology Division

to

Mechanical Engineering DivisionHeadquarters

s

Quartermaster Research and Engineering CommandNaticks 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

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PRESSURE - ENTHALPYDIAGRAMNO SCALE

ENTHALPY (BTu/lb)NOTE •

LABELED IN ACCOPOANCEWITH A3PE PS Z.4

CONDENSER SPECIMENDIAGRAM

Fig 2

Table 1

CONDEN6ER 3PECIMENmfr. Dunham-Bush. Inc. size - b

j

nbs no. 139-57, 155-58 class - 1

ITEM PROPERTY REMARKScoil tube characteristics

/ MATERIAL Copper Type L2 NUMBER of rows deep 2

3 NUMBER OF TUBES HIGH 32A NUMBER OF CIRCUITS IN PARALLEL 4

5 NUMBER OF TUBES PER CIRCUIT 86 TUBE DIAMETER

,0. D. , IN. 5/8

7 TUBE WALL THICKNESS,IN. 0.042

B TUBE RETURN BEND DIAMETERtO.D. , IN

.

1/29 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 2.0012 PRIMARY SURFACE AREA ,

SQ.FT. 11.18COIL FIN CHARACTERISTICS

/ MATERIAL Aluminum2 TYPE OF FIN Embossed Rolled CollarS FIN SPACING

,PER INCH 8 202 Fins

A FIN THICKNESS , IN. 0.010S SECONDARY SURFACE AREA

,SQ.FT. 255.6

COIL DIMENSIONS' FINNED HEIGHT, IN. K 32.0 Two 16-inch sections2 FINNED WIDTH , IN. F 23.5 1

|3 FINNED DEPTH, IN. V 3.0

. . —

1

A COIL HEIGHT,IN. H 31.0

S COIL WIDTH, IN. W 29.0

6 COIL DEPTH , IN. D 1.57 COIL DEPTH

,OVERALL , IN. N 10o4

6 FACE AREA, 3Q. FT. 5.7

9 TOTAL SURFACE AREA, SQ.FT. 266.8i

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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G DELLMQUTH RADIUS , IN. R 0.38 Less than _£peclfle'd minj

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