Table 1 Literature Survey.

From: Study of thermal performance and melting behaviour of a novel paraffin wax-carbon quantum Dots PCMs

S No

Reference

Composite

wt/vol%

Thermal conductivity (k)

Latent heat/thermal performance

1

Hao and Gao62

Paraffin/Alumina

5 & 10 wt%

k enhancements: 2 & 6%

Latent heat decrease: 7% & 13%

2

Jesumathy, Udaykumar and Suresh63

Paraffin/Copper oxide

2, 5 & 10 wt%

k increased by 6, 6.7 & 7.8% in liquid state

 

3

Ali et.al64

Paraffin/ Al2O3, ZnO2 and nano-SiC

0.1, 0.5, 1,1.5 wt%

k increased by 3.3, 1.8 & 4.2% for 1wt% Al2O3, ZnO2 and nano-SiC

 

4

Wang et al.65

Paraffin/ TiO2

0.3, 0.5, 0.7, 0.9, 1, 3, 5 & 7 wt%

k increased with wt%

Latent heat increased at 0.7 wt%

5

Chaichan, Kamel and Al-Ajeely66

Paraffin/ Alumina,TiO2

1, 2, 3, 4 & 5 wt%

k increased by 65% & 40% for alumina & TiO2 at 5 wt%

 

6

Sahan, Fois and Paksoy67

Paraffin/Fe3o4

20 wt%

k increased by 1.6%

 

7

Nourani et al.68

Paraffin/nano alumina

2. 5, 5, 7.5 & 10 wt%

k enhancements: 31% (solid state) & 13% (liquid state) at 10 wt%

Melting rate increased by 27%

8

Colla et al.69

RT20,RT25/Alumina, carbon Black

1 wt%

k increased by 35% for CB with RT20

Latent heat decreased by 12% for CB with RT25 Latent heat increased by 11% for alumina with RT20

9

Shalaby et al.70

Paraffin/ Alumina

3 wt%

k enhancement: 18.6%

 

10

Jesumathy71

Paraffin/ Alumina

5 & 10 vol%

k enhancement: 12.71% & 19.32%

Latent heat decrease: 0.74% & 1.64%

11

Gunjo et al.32

Paraffin/Cu, CuO, & Al2O3

5 wt%

 

Melting times decreased by 10, 3.5 and 2.25 times

12

Kumar et al.72

Paraffin/Copper oxide

0.5, 1, 1.5 & 2 wt%

k enhancements: 50, 95.5, 131.8 & 172.7%

 

13

Kumar et al.73

Paraffin/Zinc oxide

0.5, 1 & 2 wt%

k enhancements: 41.6% for 2 wt%

 

14

Goli et al.74

Paraffin/Graphene

1 & 20 wt%

k enhancements: 60% & 170%

 

15

Liu et.al75

Paraffin/Expanded graphite, MWCNT, graphite powder

0.1, 0.5, 1, 1.5, 2.5 wt%

k increased by 61.04, 51.2, 12.18, 10.22 for 2.5 wt% Expanded graphite, MWCNT, graphite powder

 

16

Zhang et al.76

Paraffin/Graphene

3, 5, 7, 10 & 15 wt%

 

Decrease in temp. rise by 8.77% with 15 wt%

17

Liu and Rao77

paraffin/graphene, exfoliated graphite sheet

2 wt%

k increased by 58.6% and 41.4% for 2 wt% graphene & graphite sheet

 

18

Safaei, Goshayeshi, and Chaer78

Paraffin/graphene oxide (GO)

0.2, 0.4, and 0.6 wt%

 

25% increase in productivity

19

Kumar et al.79

Paraffin/graphene (GR)

0.5, 1, 1.5 & 2 wt%

k increased by 66.15% with 2 wt%

 

20

Ali et al.80

Paraffin/Nanographene

1, 2 & 3 wt%

k enhancement: 146% at 3wt%

latent heat decrease: 3% at 3wt%

21

Li et al.81

Paraffin/ EG,GR,GO

0.5, 1, 1.5 & 2 wt%

k increased in the order GR, GO, and EG

Latent heat Decreased by 14.6% (EG), 18.6% (GO) and 19.4% (GR) at 1 wt%

22

Janumala et al.60

Paraffin/CQDs

1, 5, 10,15 & 20 wt%

k increased by 10.04%, 19.21%, 38.43%,60.26% & 97.38%

 

23

Emeema et al.61

Paraffin/CQDs

1, 5, 10, 15 & 20 wt%

 

LH increased by 65.1%, 40.4%, 33.8%, 19.9% & 10.4%

Back to article page