Page 91 - Chemical process engineering design and economics

76 Chapter 2

Correct for size.

( 63 V' 65
4
CpBa = 1.4xl0 | ——— | = $2,321
I 1,000 j
Correct for inflation from January 1990 to mid-1998. Use the cost index for
heat exchangers.

382.8
CPU i = 2321 ——— =$2,387
372.2

Correct for temperature (f T = 1.1), pressure (0), heat exchanger design (f D =
0.8), and material of construction (f~M = 1.0).

C PAi = 1.1 (0 + 0.8) (1.0) (2387) = $2,101

Calculate the installation factor.

f n = 2.0 (1.34) (1.18) = 3.162

Condenser

Repeat the above calculation for the condenser.
( 364 V- 65
CpB2i=1.4xl0 4 I ——— I = $7,258
I IJOQOj
382.8
C PBi = 7258 ——— =$7,465
372.2
Cp Ai = 1.05 (0 + 0.8) (1.0) (7465) = $6,271

f n = (2.0) (1.34) (1.18) = 3.162

Copyright © 2003 by Taylor & Francis Group LLC