Pull-Down Time (Cold Room)
Time to cool a loaded cold room from ambient to set-point, given refrigeration plant duty and thermal load.
Loading calculator…
Formula, assumptions, and limits
| Symbol | Meaning | Unit |
|---|---|---|
| Goods mass | kg | |
| Specific heat | kJ/(kg·K) | |
| Temperature drop | K | |
| Plant cooling duty | kW | |
| Structural heat leak | kW |
Source: ASHRAE Handbook - Refrigeration
In short
Time to cool a loaded cold room from ambient to set-point, given refrigeration plant duty and thermal load.