CASE STORY Data trend revealed soot build-up With the Digital Services Gold package in place, Alfa Laval experts have been able to monitor and analyse boiler conditions and performance on the tanker. Among the findings during the first six months of the service, they noticed that the two boilers had a high uptake temperature throughout their load range. This suggested that soot build-up was decreasing heat transfer. “The build-up of soot was gradual, so it wasn’t easily noticed on board,” says Smedegaard. “Analysis with smart algorithms, developed through the knowledge of Alfa Laval experts, identified a steady rise in the uptake temperature. When this was pointed out, the customer quickly corrected the cleaning routines.” The results of the change speak for themselves. For the two boilers combined, the tanker has seen a 6.4% improvement in combustion efficiency. Substantial savings – and potential for more When translated into fuel savings, the boiler performance improvement becomes even more notable. Compared to the fuel consumption before the customer began using Digital Services, the boilers now use around 1800 litres less per month. Based on fuel price quotations, that amounts to monetary savings of over USD 900 per month. Going forward, the tanker owner can expect to save in other ways, says Stig G. Person, Head of Global Boiler Service at Alfa Laval. “This owner now has boiler efficiencies approaching 80%, and continued monitoring will help to maintain that high level,” he says. “Digital Services will also help the customer to optimize planning for spare part replacement.” Corrected routines increase boiler efficiency The trend revealed by the data led the owner to correct boiler cleaning routines, which has had significant results. For the two boilers combined, the tanker has seen a 6.4% improvement in combustion efficiency: Efficiency, Boiler 1 Before: 72.6% After: 73.6% Efficiency, Boiler 2 Before: 74.3% After: 79.6% How to contact Alfa Laval Up-to-date Alfa Laval contact details for all countries are always available on our website at www.alfalaval.com 100000111-1-EN 2102 Alfa Laval reserves the right to change specifications without prior notification.
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