【作者】

Kaj Portin

【摘要】

该论文已在赫尔辛基举行的第28届CIMAC大会上发表，论文的版权归CIMAC所有。There is a global discussion if the excess power from renewable energy can be used for hydrogen production. Hydrogen is a good energy carrier. There has been some discussion that hydrogen could be used to be mixed into the natural gas in pipelines, and a small amount is already put in to the pipelines in Europe. As Wärtsilä engines can operate with limited amounts of hydrogen, the objective was to test and find the limits of hydrogen content in natural gas. Hydrogen mixing into natural gas has been tested at Wärtsilä engine laboratory. For this purpose, a tailor-made gas mixing station has been designed, built and used. The gas mixing station is built so that we can use different gases and ensure sure mixing ranges and a homogeneous blend. Hydrocarbons from methane to octane have been used as well as other gases like CO and H2. In the paper we will show the working principles of the gas mixing station and how the security was ensured in the engine cell. The testing safety in the cell was guaranteed to make sure that the system is built for safe operation. The air exchange was improved by an extra fan coupled to hoods over the vulnerable areas. Additional sniffers were distributed throughout the system to ensure that possible leakages and other risk situations could be monitored online. The access to the test cell was restricted, and additional measures were taken to ensure safe testing. The needed safety for application in power plants and marine installations will be discussed in this paper. Testing was done with mixing various contents of hydrogen in natural gas at different ambient conditions. We tested for both different applications and different contents of hydrogen, to ensure a wide applicability. Both power plant and marine applications were considered. The target was to find the limits for the hydrogen content in the fuel regarding engine performance and operability. The paper will show the test results.

【会议名称】

第28届CIMAC会议

【会议地点】

芬兰 赫尔辛基

【下载次数】

2

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