Investigation of Methane-Hydrogen Mixtures in Vertical Pipelines

• Autorzy: Marius Darie , Vlasin Nicolae , Prodan Maria , Burian Sorin , Pupazan Gabriela , Moldovan Lucian

Identyfikatory

DOI

10.29227/IM-2024-01-08

Warianty tytułu

PL

Badanie mieszaniny metan-wodór w rurociągach pionowych

• Języki publikacji: EN

Abstrakty

EN

The paper presents an assessment of issues regarding the separation phenomena of methane-hydrogen mixtures in vertical pipelines. In the first part of the paper, the explosion risk is underlined. Thus, the widespread use of methane in both the industrial and domestic sectors is well known. In practice, due to recent trends, the injection of hydrogen into dedicated methane installations, the differences in densities can lead to separation phenomena which have an unfavorable effect on the operating regimes of equipment using this mixture and also, on the risk of explosion. The use of hydrogen in the industry is not new, but the increasing impact in terms of the number of users may involve a higher number of accidents due to the increased field of probability of hazardous situations in terms of explosions. The second part presents the used methods. The diffusion and gravitational separation are presented as phenomena having opposite effects. The used methods are theoretical and simulation approaches. The theoretical model is based on a nondynamic model. Therefore, no time parameter was not involved in the model. A linear dependence with the height of the concentration variation was observed for the range of heights considered. The conducted simulation underlined the same conclusion regarding the magnitude of gravitational separations in the methanehydrogen mixtures. The main conclusion of the approach is that the separation phenomenon effect due to the gas density differences is negligible. The approach also revealed, as expected that the higher level of pipe is exposed to a higher risk of increased hydrogen concentration.

Słowa kluczowe

EN

investigation; methane; hydrogen; vertical pipelines; diffusion; gravitational separation

PL

metan-wodór; mieszanina; rurociągi pionowe

• Wydawca: Polskie Towarzystwo Przeróbki Kopalin
• Czasopismo: Inżynieria Mineralna
• Rocznik: 2024
• Tom: Vol. 1, no. 1
• Strony: 63--69
• Opis fizyczny: Bibliogr. 12 poz., rys., wykr.

Twórcy

autor

Marius Darie

• National Institute for Research and Development in Mine Safety and Protection to Explosion - INSEMEX, 32-34 G-ral Vasile Milea Street, Petrosani, Romania

autor

Vlasin Nicolae

• National Institute for Research and Development in Mine Safety and Protection to Explosion - INSEMEX, 32-34 G-ral Vasile Milea Street, Petrosani, Romania

autor

Prodan Maria

• National Institute for Research and Development in Mine Safety and Protection to Explosion - INSEMEX, 32-34 G-ral Vasile Milea Street, Petrosani, Romania

autor

Burian Sorin

• National Institute for Research and Development in Mine Safety and Protection to Explosion - INSEMEX, 32-34 G-ral Vasile Milea Street, Petrosani, Romania

autor

Pupazan Gabriela

• National Institute for Research and Development in Mine Safety and Protection to Explosion - INSEMEX, 32-34 G-ral Vasile Milea Street, Petrosani, Romania

autor

Moldovan Lucian

• National Institute for Research and Development in Mine Safety and Protection to Explosion - INSEMEX, 32-34 G-ral Vasile Milea Street, Petrosani, Romania

Bibliografia

• 1. Directive 2014/34/EU of the European Parliament and of the Council of 26 February 2014 on the harmonization of the laws of the member states concerning equipment and protective systems intended for use in potentially explosive atmospheres (recast);
• 2. Directive 1999/92/EC of the European Parliament and of the Council of 16 December 1999 on minimum requirements for improving the safety and health protection of workers potentially at risk from explosive atmospheres (15th individual Directive within the meaning of Article 16 (1) of Directive 89/391/EEC);
• 3. A. Darabont, D. Darabont, et.al., Safety quality assessment of technical equipment (AGIR Publishing House, Bucharest, Romania, ISBN 973-8130-35-2, 2001);
• 4. S. Simion, O. Baron, M. Basuc, Explosion Risk (Europrint Publishing House, Oradea, 2004);
• 5. S. Simion, D. Vasilescu, et.al., Risk of explosion, (Europrint Publishing House, ISBN 973-7735-08-0, Oradea, 2004);
• 6. G.D. Vasilescu, Probabilistic calculation methods used in industrial risk diagnosis and forecasting (Publishing House, Petrosani, ISBN 978-973-88590-0-5, 2008);
• 7. S. Burian, J. Ionescu, M. Darie, T. Csaszar, A. Andriș, Requirements for Installations in Areas with Explosive Atmosphere, other than Mines (INSEMEX Petrosani – Publishing House, Petrosani, 2007);
• 8. Romanian Government Decision No 1058/2006 on minimum requirements for improving the safety and health protection of workers potentially at risk from explosive atmospheres;
• 9. Romanian Government Decision No 245/2016 on establishing the conditions for making available on the market equipment and protective systems intended for use in potentially explosive atmospheres;
• 10. V.M. Păsculescu, N.I. Vlasin, D. Florea, M.C. Șuvar – Improving the Quality of the Process for Selecting Electrical Equipment Intended to be Used in Potentially Explosive Atmospheres – Proceedings of the 7th International Multidisciplinary Scientific Symposium UNIVERSITARIA SIMPRO, Petroșani, 2016;
• 11. I.N. Căprar, S. Burian, ș.a., Technical equipment for potentially explosive environments Group II (EUROPRINT- Oradea Publishing House, ISBN 973-86428-0-9/2003);
• 12. EN 60079-20-1, Explosive atmospheres - Part 20-1: Material characteristics for gas and vapour classification - Test methods and data.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).