D. Determine Number of Stages Required
Select the minimum number of stages from Table IV necessary to meet the required DT.
Typical maximum obtainable DT Values for Single- & Multi-stage TECs
|Number Of Stages||DTmax in Dry N2 @ 1 atm (°C)||DTmax in a Vacuum (°C)|
In this example, a single-stage TEC will suffice since 64°C is greater than the desired 35°C DT. If the number of stages required exceeds two, the following selection process is not applicable. These calculations are only accurate for one- or two-stage TECs. For three-stage and above, call one of our applications engineers for assistance.