Berlin Airport, Germany
In brief. Exhaust from Caterpillar gas engines, cooled from 465 to 195 °C, drives two Thermax chillers that together give the airport 2,600 kW of cooling.
At Berlin Airport, Caterpillar gas engines generate electricity, and the heat in their exhaust goes to air conditioning. Two Thermax absorption chillers on the exhaust deliver 2,600 kW of cooling. The source names the benefit as lower electricity demand and lower greenhouse gas emissions, but gives no figures.
What does the project consist of?
| Parameter | Value |
|---|---|
| Industry | Airport |
| Engines | Caterpillar, 2 MW engine output |
| Fuel | Natural gas |
| Heat for the chiller | Exhaust at 465 °C, cooled to 195 °C |
| Chillers and cooling | 2 exhaust-fired chillers of 1,300 kW (370 TR) each, 2,600 kW (740 TR) in total |
| What the cooling is for | Airport air conditioning |
Why is this example useful for a Russian site?
The chiller takes the exhaust from 465 down to 195 °C but does not use the engine jacket water. That means the jacket heat has to be used separately or rejected, otherwise the engine will overheat. The chiller's gas-side pressure drop, 200–250 mm H2O, is calculated right away, together with the exhaust duct. More: trigeneration (CCHP) with gas engines.
How does this kind of scheme work?
Engine exhaust goes straight into an exhaust-fired absorption chiller, which supplies chilled water to the consumer.
Based on Thermax materials
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