Page 86 - Process Equipment and Plant Design Principles and Practices by Subhabrata Ray Gargi Das

4.3 Design considerations 83

Design summary is presented in tabular form as a data sheet. The format suggested in TEMA is
presented in Table 4.4. Formats from other standards differ only marginally.
In large projects, a common table (data sheet) documents the data for several exchangers in the
plant for which design companies like M/s Engineers India Ltd. have their own format.

Table 4.4 Data sheet for shell and tube exchanger (TEMA).
1 Company: XYZ Co.
2 Location: Kharagpur, India
3 Service of unit: Vapour condenser Our Ref.: J1222E01
4 Item no.: 10E01 Your Ref.: 10E01:
5 Date: Jan 09, 2020 Rev. No.: O Job No.: J1222
6 Size (mm): 4150 Type: BEM Connected in: 1 parallel, 1 series
2
2
7 Surface/unit (effective) (m ): 269; shell/unit: 1; surface/shell (effective) (m ): 269
8 PERFORMANCE OF ONE UNIT
9 Fluid allocation Shell side Tube side
10 Fluid name Inlet vapour Cold water
11 Fluid quantity, total kg/s 12.5 105

12 Vapour (In/Out) kg/s 12.5 0 0 0
13 Liquid kg/s 0 12.5 105 105
14 Noncondensable kg/s 0 0 0 0
15
16 Temperature (In/Out) C 46 44 20 30
17 Dew/bubble point C 46 44
18 Density vapour/liquid kg/m 3 10.8 564 999 997
19 Viscosity mPa s 0.0085 0.122 1.016 0.804
20 Mol. wt. vapour 58.6
21 Mol. wt. noncondensable
22 Specific heat kJ/(kg K) 1.76 2.47 4.19 4.19
23 Thermal conductivity W/(m K) 0.0174 0.102 0.5937 0.6067
24 Latent heat kJ/kg 337.4 338.4
25 Pressure (abs.) Bar 4.9 4.8 5 4.9
26 Velocity m/s 9.9 0.87
27 Press. drop, allow./calc. bar 0.2 0.08 0.07 0.08
2
28 Fouling Resist. (min) m K/W 0.00009 0.00018; 0.0002
A o based
Continued