| DSC | Differential scanning calorimeter |
| PCM | phase-change material |
| Teim | extrapolated onset temperature |
| Tefm | extrapolated final temperature |
| Tpm | melting peak temperature |
| PCES | phase-change energy storage |
| EPCM | encapsulated phase-change material |
| CA | contact angle |
| Φ | heat flow |
| sensible heat | |
| latent heat | |
| m | mass |
| specific heat capacity | |
| β | temperature change rate |
| reaction enthalpy | |
| the rate of internal changes as the system moves away from equilibrium | |
| k | slope |
| x | width |