CS 2000 Series selection
STEP 4: Calculate the area required Required Area sq.ft. =
Q ( BTU / HR )
190,875
= 188.4 sq.ft.
LMTD c x U ( from table C)
10.13 x 100
STEP 5: Selection a) From table E choose the correct series size, baffle spacing, and number of passes that best fits the flow rates for both shell and tube side. Note that the tables suggest minimum and maximum information. Try to stay within the 20-80 percent range of the indicated numbers. Example Oil Flow Rate = 200 GPM = Series Required from Table E = 2000 Series Baffle Spacing from Table E = 6” Water Flow Rate = 100 GPM = Passes required in 2000 series = 4 (FP) b) From table D choose the heat exchanger model size based upon the sq.ft. or surface area in the series size that will accommodate your flow rate. Example Required Area = 188.4 sq.ft Closest model required based upon sq.ft. & series = CS-2072-6-6-FP If you require a computer generated data sheet for the application, or if the information that you are trying to apply does not match the corresponding information, please contact our engineering services department for further assistance.
TABLE A- FACTOR M/LMTD = L x M
TABLE B- LMTD correction factor for Multipass Exchangers .05 .1 .15 .2 .25 .3 .35 .4 .45 .5 .6 .7 .8 .9 1.0 .2 1 1 1 1 1 1 1 .999 .993 .984 .972 .942 .908 .845 .71 .4 1 1 1 1 1 1 .994 .983 .971 .959 .922 .855 .70
S/L
M
S/L
M
S/L
M
S/L
M
.25 .26 .27 .28 .29 .30 .31 .32 .33 .34 .35 .36 .37 .38 .39 .40 .41 .42 .43 .44 .45 .46 .47 .48 .49
.541 .549 .558 .566 .574 .582 .589 .597 .604 .612 .619 .626 .634 .641 .648 .655 .662 .669 .675 .682 .689 .695 .702 .709 .715
.50 .51 .52 .53 .54 .55 .56 .57 .58 .59 .60 .61 .62 .63 .64 .65 .66 .67 .68 .69 .70 .71 .72 .73 .74
.721 .728 .734 .740 .746 .753 .759 .765 .771 .777 .783 .789 .795 .801 .806 .813 .818 .823 .829 .836 .840 .848 .852 .858 .864
.75 .76 .77 .78 .79 .80 .81 .82 .83 .84 .85 .86 .87 .88 .89 .90 .91 .92 .93 .94 .95 .96 .97 .98 .99
.870 .874 .879 .886 .890 .896 .902 .907 .913 .918 .923 .928 .934 .939 .944 .949 .955 .959 .964 .970 .975 .979 .986 .991 .995
.01 .02 .03 .04 .05 .06 .07 .08 .09 .10 .11 .12 .13 .14 .15 .16 .17 .18 .19 .20 .21 .22 .23 .24
.215 .251 .277 .298 .317 .334 .350 .364 .378 .391 .403 .415 .427 .438 .448 .458 .469 .478 .488 .497 .506 .515 .524 .533
.6 1 1 1 1 1 .992 .980 .965 .948 .923 .840 .8 1 1 1 1 .995 .981 .965 .945 .916 .872 1.0 1 1 1 1 .988 .970 .949 .918 .867 .770 2.0 1 1 .977 .973 .940 .845 .740 3.0 1 1 .997 .933 .835 4.0 1 .993 .950 .850
R
5.0 1 .982 .917 6.0 1 .968 .885
8.0 1 .930 10.0 .996 .880 12.0 .985 .720
14.0 .972 16.0 .958 18.0 .940 20.0 .915
K
TABLE D- Surface Area
Surface Area in Sq.ft. 3/8" O.D Tubing
STANDARD CONSTRUCTION MATERIALS & RATINGS
CS-2036 CS-2048 CS-2060 CS-2072 CS-2084 CS-2096 CS-20108 CS-20120 CS-20132 CS-20144 Model Number
1/4" O.D Tubing 155.43 207.24 259.05 310.86 362.67 414.48 466.29 518.10 569.91 621.72
5/8 O.D Tubing 60.84 81.12 101.40 121.68 141.95 162.23 182.51 202.79 223.07 243.35
AB-2000 Series
Standard Unit Ratings
110.69 147.58 184.48 221.37 258.27 295.16 332.06 368.95 405.85 442.74
Shell Tubes Baffle Tube Sheet End Bonnets Mounting Brackets Gasket
Steel Copper
Operating Pressure Tubes 150 psig Operating Pressure Shell 225 psig Operating Temperature 250 o F
Steel Steel Cast Iron Steel Hypalon Composite
Options
Example Model
CS - 2072 - 4 - 6 - TP - CNT - B - Z
Zinc Anode Z = 1 Zinc Anode 2Z = 2 Zinc Anode etc.
Shell Diameter 2000 = 10.75"
Model
Baffle Spacing Code
CS 2000
Effective Tube Length (12" increments)
Tubing Blank = Copper
End Bonnets Blank = Cast Iron
Tube Side Passes
2.0" 4.0" 6.0" 8.0" 12.0"
Cooling Tube Diamenter 6 = 3/8" 10 = 5/8"
Options CNT= 90/10 Cu Ni STS = Stainless Steel C = Carbon Steel
SP = 1 pass TP = 2 pass FP = 4 pass
Options B = Bronze SB = Stainless Steel
note: AIHTI reserves the right to make reasonable design changes without notice.
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email: sales@aihti.com fax: 434-757-1810
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