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| item | description |
|---|---|
| 1 | air at ambient temperature is flowing by free convection into a chamber at 23° for heating |
| 2 | a Petri dish with PG60 or PCD with a thickness of 10 mL initially –40 °C is placed on the insulation. At this temperature, the PCD is “loaded”, which means the PCM is in solid state |
| 3 | insulation for an adiabatic boundary condition |
| 4 | infrared camera |
