Table 7 Optimal design variables and corresponding objectives for various design scenarios.

From: Optimization of nano-finned enclosure-shaped latent heat thermal energy storage units using CFD, RSM, and enhanced hill climbing algorithm

Scenario

Weights

Design variables

Objective functions

WT

WE

VFNM (%)

NFin

LFin

Unit type

VFFin (%)

Et (kJ)

tm (s)

1

5

1

0.0171

5

0.94

GNP + Fin

10

63.03

91.76

2

1

5

0.0006

1

1

GNP + Fin

5

66.15

222.3

3

1

1

0.0082

5

0.84

GNP + Fin

5

64.67

137.4

4

1

0

4.8531

5

0.97

GNP + Fin

9.775

60.21

66.84

5

0

1

0

1

1

Pure PCM + Fin

5

66.36

312.9