AT&S, Shanghai, China
In brief. One 1,160 kW Thermax machine supplies the plant with 7 °C chilled water in summer and 80 °C hot water in winter from the heat of a single engine.
At the AT&S printed circuit board plant in Shanghai, a single 1.1 MW gas engine sends its exhaust and jacket water heat to one 1,160 kW Thermax absorption chiller. In summer the machine makes 7 °C chilled water, in winter 80 °C hot water. The source lists the benefits: lower emissions, less noise and less vibration.
What does the project consist of?
| Parameter | Value |
|---|---|
| Industry | Electronics, printed circuit boards |
| Engines | 1 gas engine, 1.1 MW |
| Fuel | Natural gas |
| Heat for the machine | Exhaust at 454 °C and engine jacket water at 81 °C |
| Machine and cooling | 1 machine, 1,160 kW (330 TR) |
| What the cooling is for | Chilled water at 7 °C in summer, hot water at 80 °C in winter |
Why is this example useful for a Russian site?
One 1.1 MW engine and one 1,160 kW machine: the exhaust and the jacket water give roughly 1 kW of cooling per 1 kW of electricity. In winter the same machine delivers 80 °C water, so we check in advance whether this temperature schedule suits the plant's heating system. More: trigeneration (CCHP) at industrial plants.
How does this kind of scheme work?
In summer the heat goes to the machine and produces cooling; in winter it goes to heating.
Based on Thermax materials
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