AB 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 your 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 = D baffle 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 = AB-2007-D6-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.
STANDARD CONSTRUCTION MATERIALS & RATINGS
AB-2004 AB-2005 AB-2006 AB-2007 AB-2008 AB-2009 AB-2010 AB-2011 AB-2012 AB-2013 AB-2014 AB-2015 Model Number
1/4" O.D Tubing 155.43 194.29 233.15 272.00 310.86 349.72 388.58 427.43 466.29 505.15 544.01 582.86
3/8" O.D Tubing 110.69 138.36 166.03 193.70 221.37 249.04 276.71 304.38 332.06 359.73 387.40 415.07
5/8 O.D Tubing 60.84 76.05 91.26 106.47 121.68 136.88 152.09 167.30 182.51 197.72 212.93 228.14
Shell Tubes Baffle Tube Sheet End Bonnets Mounting Brackets Gasket AB-2000 Series Standard Model Steel Copper Steel Steel Cast Iron Steel Hypalon Composite
Standard Unit Ratings
Operating Pressure Tubes 150 psig Operating Pressure Shell 300 psig Operating Temperature 300 o F
Options
Example Model
AB - 2008 - C 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 C = 4 1/2 " D = 9 " E = 18 "
AB 2000
Effective Tube Length (9" increments)
Tubing Blank = Copper Options CNT= 90/10 Cu Ni STS = Stainless Steel
End Bonnets Blank = Cast Iron
Tube Side Passes
Cooling Tube Diamenter
SP = 1 pass TP = 2 pass FP = 4 pass
Options B = Bronze SB = Stainless Steel
4 = 1/4" 6 = 3/8" 10 = 5/8"
note: AIHTI reserves the right to make reasonable design changes without notice.
35
Copyright © 2019 - 2020 American Industrial Heat Transfer, Inc.
tel: 434-757-1800 355 American Industrial Drive LaCrosse, VA 23950
email: sales@aihti.com fax: 434-757-1810
Made with FlippingBook - professional solution for displaying marketing and sales documents online