Dieselspecialists – Fuel Smarter this is the message echoed by researchers from Institut Teknologi Sepuluh Nopember (ITS), Surabaya, as they unveil their recent success in optimizing dual-fuel diesel–Compressed Natural Gas (CNG) engine performance. Their study demonstrates that by fine-tuning the Start of Injection (SOI) and regulating CNG pressure, diesel consumption can be reduced by up to 47% without sacrificing engine efficiency.
At the heart of this breakthrough is the SOI adjustment, a critical factor in dual-fuel engine operation. The ITS team found that setting the SOI to approximately 80° Before Top Dead Center (BTDC) significantly improves combustion timing. This leads to a more efficient fuel burn, lowering diesel dependency while maintaining power output.
This innovation doesn’t require a full overhaul of the engine system. Instead, it leverages precise tuning to make existing diesel engines operate smarter and cleaner. It proves that one can Fuel Smarter by optimizing existing systems with minimal cost and effort.
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Alongside SOI optimization, the study also focuses on the injection pressure of CNG, set between 1 to 1.5 bar. This adjustment enables a greater share of the engine’s power to come from natural gas, which burns more cleanly than diesel. As a result, not only is fuel cost reduced, but the environmental impact is also minimized.
This dual-fuel configuration allows engines to substitute a large portion of diesel with CNG while maintaining stability and performance. For operators in transport or industry, it’s a compelling opportunity to Fuel Smarter using cleaner alternatives.
The findings from ITS offer a realistic, practical path forward for reducing fuel costs and emissions particularly for nations where diesel engines remain dominant. By adjusting SOI and gas pressure, fleet managers and manufacturers can achieve meaningful results without transitioning to expensive new technologies.
In a world striving for sustainability, ITS’s research is a timely reminder that smart engineering still plays a vital role. Sometimes, to Fuel Smarter simply means rethinking how we use what we already have.
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