The Swiss marine engine manufacturer WinGD is developing a new dual-fuel technology that promises significant increases in efficiency with diesel and LNG.
An initial practical test is now to take place on board a ship belonging to the shipping company CMA CGM. The so-called “VCR” technology (Variable Compression Ratio) adapts the cylinder compression ratio in the engine to both the environment and the load. This reduces both fuel consumption and the greenhouse gas emissions generated. According to WinGD, the technology is the first time a flexible compression ratio has been used in a marine engine.
WinGD conducts first long-term VCR test
CMA CGM ‘s project includes a large-scale long-term test to confirm the functionality and reliability of VCR. Onboard testing is expected to begin after the vessel’s dry-docking in September when the VCR will be installed in the vessel’s dual-fuel engine (model RT-flex50DF).
The test is in line with CMA CGM’s goal to be completely CO2-free by 2050. The shipping company has committed to using sustainable solutions across its entire fleet, both on newbuilds and existing vessels.
“Partnerships with leading shipping companies are essential to prove the benefits of new technologies in real operating conditions,” said Sebastian Hensel, Vice President R&D at WinGD. “We welcome CMA CGM’s vision to promote sustainable shipping and recognize the potential of VCR to support these ambitions.”
The improved operational flexibility, fuel savings and reduction in methane slip achieved through VCR technology will support ship owners and operators on their path to decarbonization, the company said. The engine manufacturer foresees a transition from fossil to synthetic or biomass-derived LNG, accompanied by a continuous improvement in methane emissions from both the engines and the entire fuel production and supply chain.
