文献类型：期刊文献

英文题名：Consequence prediction using variable-length concentration time series for gas turbine enclosure

作者：Chen, Shikuan[1];Du, Wenli[1];Cao, Chenxi[1];Wang, Bing[1]

机构：[1]East China Univ Sci & Technol, Key Lab Smart Mfg Energy Chem Proc, Minist Educ, Shanghai 200237, Peoples R China

年份：2025

卷号：85

起止页码：182

外文期刊名：CHINESE JOURNAL OF CHEMICAL ENGINEERING

收录：;EI(收录号：20253819209612);WOS:【SCI-EXPANDED(收录号:WOS:001584468400005)】；

基金：This work was supported by the National Key Research and Development Program of China (2022YFB330590 0) , National Natural Science Foundation of China (62373153,62173147) , the Programme of Introducing Talents of Discipline to Universities (the 111 Project) under Grant B17017 and Fundamental Research Funds for the Central Universities (222202517006) .

语种：英文

外文关键词：Consequence prediction; Variable-length time series; Deep learning; Computational fluid dynamics

摘要：Flammable gas leakage in a semi-enclosed scenario can lead to catastrophic consequences, such as vapor cloud explosions. To reduce casualties and environmental damage, predicting the consequences based on the initial concentration time series monitored by sensors is of paramount importance. This paper proposes a consequence prediction model based on deep learning using variable-length concentration time series. Incomplete concentration values are padded and then passed through a masking layer, enabling the network to focus exclusively on valid data. The temporal correlations are extracted using a long short-term memory (LSTM) network, and the final prediction results are obtained by passing these features into a feedforward neural network (FNN). Computational fluid dynamics (CFD) software was used to simulate the leakage of hydrogen-mixed natural gas. Experiments were carried out for nine distinct prediction targets, derived from combinations of the mass and centroid coordinates of vapor clouds formed by various gases. These prediction targets were modeled using both fixed-length and variable-length input sequences. The high accuracy of the experimental results validates the effectiveness of the proposed method. (c) 2025 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies.