Stirling technology for supplying large buildings with energy
An almost forgotten technology has proven suitable for decentralised energy supply due to newly developed materials: the Stirling engine known for its ability to use different fuels and its low pollution and maintenance characteristics. For a year now, EnBW in cooperation with SOLO has been testing Stirling aggregates for decentralised building energy supply. On the basis of the experience gained so far, all those involved regard the motor in the long-term as an environmentally-friendly and interesting type of decentralised energy supply.
The principle of the Stirling engine has been known for longer than that of the Otto engine. Compared with an Otto engine, a Stirling engine has fewer moving parts which are subject to wear and tear; only the crankshaft needs lubrication, not the pistons. For this reason, no oil pollution is produced due to residue from combustion. And the oil only needs to be changed approximately every 8,000 operating hours. For Otto engines, oil needs to be changed after about 1,000 operating hours. The maintenance costs for a Stirling engine are therefore lower.
More information: www.stirling-engine.de
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