【作者】

Mikael Wideskog

【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。The power generating world is living the change. Several countries have made the political decision to move away from conventional power generation towards more environmentally sustainable solutions. The currently available sustainable solutions, mainly solar and wind power, have the drawback, besides the high investment cost, of the rainy days without wind. The de-centralization of power generation is another obvious change. Partly related to the above, but also related to the overall efficiency, avoiding the losses induced by longer transportation distances, a need for smaller power plants can be foreseen. There are many actors on the market trying to seize this opportunity. Some are offering solutions to store the energy during those optimal sunny and windy days, then to be used during the rainy days without wind, others are offering smaller power plants, ranging from 10 – 500 MW, for flexibility. The most competitive solution, given the boundary conditions today, is the lean burning internal combustion piston engine running on gas. The Smart Power Generation™, enabling fast starting and stopping for the sudden clouds in the sky or lack of wind as the weather fronts move away, is a spinning reserve without spinning. The recent engine technology developments where over 50% of mechanical efficiency has been reached also speaks for the fact that smaller power plants can be made without compromising the efficiency. This article will focus on the recent technology developments on spark-ignited gas engines and how these will support the change the power generation is living today. In particular, the development regarding fast loading and unloading, as well as Grid Code Compliance and efficiency at high and partial load will be analyzed in greater detail. The lean burn gas engines are closing the gap to diesel engines in respect of load acceptance. The gas engines are well ahead regarding emissions, fulfilling today’s requirements without exhaust gas after treatment. The emission regulations of the future are met with lean burning gas engines with less effort than those using conventional liquid fuels.

【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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