Gas leakage detection using spatial and temporal neural network model

Gas leakage detection using spatial and temporal neural network model

Kopbayev, Alibek (Memorial University of Newfoundland)
Khan, Faisal (Texas A and M University)
Yang, M. (TU Delft Safety and Security Science)
Halim, Syeda Zohra (Texas A and M University)

2022

Natural gas leakage can impose significant danger on a facility and its surrounding communities. Methods for early detection and diagnosis of such leakages have been developed and widely used for gas pipelines and storage tanks. Most techniques include inspection of sensor-aided mathematical models. Application of machine learning techniques to gas leakage detection has been rarely explored. In the present work, convolutional network (to model spatial likelihood of leak) is combined with bi-directional long short-term memory layer network, or BiLSTM (to model temporal dependence of leak likelihood) to perform leak detection and diagnosis. The developed model was trained and tested using sequence of concentration profiles generated using open-source simulated data. The model learned successfully to predict gas leakage and classify its size. The study also explores the flexibility of this network to perform quick detection and diagnose with the limited data. While the networks did not require parameter adjustments to achieve high prediction accuracy, further optimization is possible through data selection and pre-processing. The model needs to be further tested for wide range of leak scenarios. At its present condition, the combined application of convolutional network and BiLSTM shows promising results for early and accurate leak detection in natural gas facilities. Experimental results are needed to confirm the effectiveness of the model and data uncertainty.

Convolutional neural network
Gas leak
Gas leak detection
Safety design

http://resolver.tudelft.nl/uuid:ebe4628e-16ea-479b-9c50-36f6adc21791

https://doi.org/10.1016/j.psep.2022.03.002

2022-09-09

0957-5820

Process Safety and Environmental Protection, 160, 968-975

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Institutional Repository

journal article

© 2022 Alibek Kopbayev, Faisal Khan, M. Yang, Syeda Zohra Halim