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FN-e

Variable list

Variable 1 – Code number for exchanger type

Number

Flow direction

1

Pure countercurrent flow

31

Pure concurrent flow

 

 

2

Cross-flow with 1 tube row

3

Cross-flow with 2 tube rows and 1 pass

4

Cross-flow with 3 tube rows and 1 pass

5

Cross-flow with 4 tube rows and 1 pass

6

Countercurrent cross-flow with 2 tube rows and 2 passes in alternate flow directions

7

Countercurrent cross-flow with 4 tube rows and 2 passes in alternate flow directions

8

Countercurrent cross-flow with 3 tube rows and 3 passes in alternate flow directions

9

Countercurrent cross-flow with 4 tube rows and 4 passes in alternate flow directions

10

Countercurrent cross-flow with 2 passes. Stream 1 mixed, stream 2 mixed only between the passes.

11

Pure cross-flow