Table 4 Specification of the grid independency.

From: Feasibility study of coke combustion and energy exergy analysis in the De-Coke process of cracking furnaces in olefin unit

Grid specification

Mesh_1

Mesh_2

Mesh_3

Mesh_4

Nodes

579,849

1,265,124

1,520,603

2,072,587

Elements

2,941,753

6,820,843

8,154,053

11,248,805

Min size (m)

1.e − 003

1.e − 003

8.e − 004

8.e − 004

Proximity min size (m)

1.e − 003

1.e − 003

8.e − 004

8.e − 004

Max face size (m)

0.1550

0.1250

9.e − 002

8.e − 002

Max size (m)

0.310

0.250

0.180

0.160