当前位置： 首页»科学研究» 科研动态 【10.28讲座】Molten Silicate Ash Deposition in Gas Turbines 发布时间：Wed Oct 26 17:14:00 CST 2016

主  题：Molten Silicate Ash Deposition in Gas Turbines

主讲人：Dr. Wenjia Song

时  间：2016年10月28 日(星期五) 14:30-15:30

地  点：京师科技大厦B座520会议室

 

讲座内容介绍：

    

In gas turbine world, attack by molten ash deposits is known to be a major problem to endanger these engine safety and efficiency. In aviation, natural ash in the atmosphere, whether these ash particles are volcanic in origin (i.e., volcanic ash) or terrestrial (e.g., desert sand and dust), may present a critical risk to jet engine safety. Over the past 30 years, more than 100 commercial aircraft have inadvertently traversed volcanic ash clouds with variably disastrous results; at least seven of these encounters caused in-flight loss of jet engine power, nearly resulting in the crash of the affected aircraft4. On land, the detrimental effects of coal ash, fly ash and biomass ash generated by combustion in land-based gas turbines include decreased efficiency, unscheduled outages, equipment failures, and high cleaning costs. In ocean-going vessels, ash derived from oil combustion (including crude oil, residual and ‘bunker fuel’) presents a significant threat to efficient turbine operation, as salt-and metal-rich ash formed from burning of liquid fuel oils leads to huge maintenance issues. All of ash-related issues above mentioned in all gas turbine area direct consequence of molten ash wetting in gas turbines. To understand deposition of ash lies at the very core of their relevance to Science and Engineering field.

主讲人简介:

Dr. Wenjia Song, VolkswagenStiftung ‘Freigeist’ Fellow in Department of Earth and Natural Sciences, Ludwig Maximilian University of Munich, Munich, Germany. He earned his Ph.D in East China University of Science and Technology (majoring in Coal Combustion and Gasification) and his M.Sc. and B.Sc in East China University of Science and Technology and Hefei University of Technology, (majoring in Chemical Engineering and Nanotechnology and Nanomaterial). He is proficient in many languages. He has published a book chapters, 13 articles and reviewed 25 articles in international journals. He has invited for scientific talks and public talks many times. And now he is teaching Thermodynamic calculation in master level.

 

相关附件：