Table 4 Segmentation of frozen PCM values and the percentage impact of fins on its solidification in a longitudinal-finned tank with a first-type boundary condition.

From: Development of freezing process of phase change materials in cylindrical thermal energy storage tanks with various fin configurations

Number of longitudinal fins

Time (s)

The effective area under the freezing front curve influenced by the fin

The effective volume of frozen PCM influenced by the fin in each cell

The volume of frozen PCM influenced by the first region in each cell

The total volume of frozen PCM in each cell

The total volume of each cell

The percentage impact of fins on the increase in frozen PCM volume

 

350

0.73676

1.8522

2.9422

4.7944

7.5820

62.95%

 

700

0.70768

1.7791

4.2745

6.0536

7.5820

41.62%

4

900

0.63538

1.5973

4.8543

6.4516

7.5820

32.90%

 

1024

0.59974

1.5077

5.1534

6.6611

7.5820

29.26%

 

200

0.66393

1.6691

1.0884

2.7575

3.7910

153.35%

 

350

0.73294

1.8426

1.4711

3.3137

3.7910

125.25%

8

423

0.73645

1.8514

1.63

3.4814

3.7910

113.58%

 

760

0.6209

1.5609

2.2301

3.7910

3.7910

69.99%