| Abbreviation | Full name |
| WGH | walnut green husk |
| PC | porous carbon |
| PEG | polyethylene glycol |
| PCM | phase-change material |
| SSPCM | solid–solid phase-change material |
| Abbreviation | Full name |
| WGH | walnut green husk |
| PC | porous carbon |
| PEG | polyethylene glycol |
| PCM | phase-change material |
| SSPCM | solid–solid phase-change material |