Table 2 Physical and thermal properties of wick materials.
Wick material | Material type | Colour | Porosity (%) | Capillary rise (mm/h) | Heat transfer coeff. (W/m2·K) | Water absorbency (%) |
|---|---|---|---|---|---|---|
Coconut coir | Natural fibre | Brown | 71.1 | 110 | 0.83 | 63.5 |
Flannel | Cotton-based | Gray | 70.8 | 150 | 0.81 | 65.1 |
Cotton | Natural textile | Dark gray | 65.3 | 120 | 0.72 | 62.2 |
Jute | Natural fibre | Brown | 69.2 | 90 | 0.66 | 51.1 |
Polypropelene | Synthetic polymer | Off-white | 57.1 | 50 | 0.57 | 47.1 |
