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Cleaner Engines
| 题名： | Cleaner Engines |
| 正文语种： | eng |
| 作者： | Michael Crowley |
| 摘要： | A harbinger of shifts in propulsion engine technology for the workboat market took place in May, almost a year ago. That's when a pair of MAN 1,019-hp D2862 LE428 12-cylinder diesels that had been modified to run on a dual-fuel combination of hydrogen and diesel went into the 82′×24′×6′ Hydrocat 48, a crew transfer vessel operated by Vestes, a Danish offshore wind company. "It's a very cool kind of benchmark project that is a test for new technology to save a lot of carbon emissions," said Jason Blume, MAN Engines & Components sales manager in Pompano Beach, Fla. What seems a bit counterintuitive is the dual-fuel operation utilizes a conventional MAN V12 marine engine that doesn't need to be optimized for hydrogen. It only requires the hydrogen-injection system developed by the Belgian engineering firm CMB. TECH. In the dual-fuel hydrogen-diesel mode, a measured amount of hydrogen is injected into the charge air that's then ignited with diesel fuel in the cylinder's combustion chamber. That combination, even when running at full load, releases less CO2 in the exhaust gases than when running on straight diesel. "The sweet spot" for fuel consumption is between 1,700 and 1,900 rpm, said Josie Hollingsworfh, MAN's sales manager for marine engines. At that point the engine is burning about 80% hydrogen and 20% diesel. |
| 出版年： | 2023 |
| 期刊名称： | Work Boat |
| 卷： | 80 |
| 期： | 3 |
| 页码： | 34-35 |
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