Thermo-Electric GAS COOLER

CHAPTERS
00:00 Introduction
00:22 Continuous Emission Monitoring System
00:43 Why do we need a gas cooler?
01:06 Long term measurements
01:16 Thermo-electric coolers
01:32 The Peltier element
02:08 Advantages of the Peltier element
02:32 Peltier element components
02:53 Usage of gas coolers
03:00 Single stage gas cooler
03:33 Dual stage gas cooler
04:10 Self-sufficient dual stage gas cooler
04:34 MRU analyzers with gas cooler

Today we are reviewing the Peltier gas cooler.

But first, why do we need a gas cooler?
The gas that we extract is hot.
To avoid condensation, the gas is transported through a heated sampling line.
Condensation, or moisture is bad when measuring especially NO2 and SO2.
Both gas components dissolve when getting in contact with water.
Once the gas reaches the analyzer, the gas is cooled down and the moisture is removed immediately.

This is especially important for long-term measurements, that need to be accurate and produce repeatable results.

Thermoelectric coolers are active solid-state heat pumps, using the Peltier effect to move heat away from sensitive electronics.

Also referred to as Peltier coolers, these devices are a more efficient and much smaller alternative to compressor-based cooling systems.