Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Vladimir Molkov"'
Publikováno v:
Hydrogen, Vol 5, Iss 2, Pp 280-292 (2024)
Onboard hydrogen storage tanks are currently fitted with thermally activated pressure relief devices (TPRDs), enabling hydrogen to blowdown in the event of fire. For release diameters below the critical diameter, the flame from the TPRD may blow-out
Externí odkaz:
https://doaj.org/article/dfade2ad736143a3bd29c9b22f21e759
Publikováno v:
Hydrogen, Vol 4, Iss 4, Pp 1001-1021 (2023)
CFD modelling of compressed hydrogen fuelling provides information on the hydrogen and tank structure temperature dynamics required for onboard storage tank design and fuelling protocol development. This study compares five turbulence models to devel
Externí odkaz:
https://doaj.org/article/be626fb6ed6843b09ac76db30fdf6c8e
Publikováno v:
Hydrogen, Vol 4, Iss 3, Pp 585-598 (2023)
Refuelling hydrogen-powered cars, buses, trucks, trains, ships, and planes is a technological challenge. The absence of contemporary CFD models of refuelling through the entire hydrogen refuelling station (HRS) equipment is one of the scientific bott
Externí odkaz:
https://doaj.org/article/b00d2254b93f49a489806909aad6e703
Publikováno v:
Chemical Engineering Transactions, Vol 105 (2023)
Transport and storage of liquid hydrogen (LH2) is currently the most attractive option for scaling up the hydrogen supply infrastructure. Hazards and associated risks for compressed gaseous hydrogen applications are relatively well investigated, yet
Externí odkaz:
https://doaj.org/article/7ecf03e61c094deeb2e739252bd82c6d
Publikováno v:
Chemical Engineering Transactions, Vol 105 (2023)
This paper overviews some findings of the HyTunnel-CS project (www.hytunnel.net) on inherently safer use of hydrogen-powered vehicles in underground traffic infrastructure. The focus is on mitigation and prevention of hazards from blast wave and fire
Externí odkaz:
https://doaj.org/article/719f3d6d6b3e4725ae1196b5a4bf908b
Autor:
Keiji Takeno, Hikaru Kido, Hiroki Takeda, Shohei Yamamoto, Volodymyr Shentsov, Dmitriy Makarov, Vladimir Molkov
Publikováno v:
Fire, Vol 7, Iss 2, p 48 (2024)
A hydrogen under-expanded jet released from a high-pressure vessel or equipment into the atmosphere through a 0.53 mm diameter orifice results in a sustained lifted flame for pressures above 4 MPa and flame blow-out at pressures below 3 MPa. Knowledg
Externí odkaz:
https://doaj.org/article/dd47bd1dcc544b4ab487da9ec92ba189
Publikováno v:
Hydrogen, Vol 3, Iss 4, Pp 512-530 (2022)
This study presents a methodology of a quantitative risk assessment for the scenario of an onboard hydrogen storage tank rupture and tunnel fire incident. The application of the methodology is demonstrated on a road tunnel. The consequence analysis i
Externí odkaz:
https://doaj.org/article/c3f789803f3f49fb98c5c5f3c93c50f4
Autor:
Donatella Cirrone, Dmitriy Makarov, Andreas Friedrich, Joachim Grune, Keiji Takeno, Vladimir Molkov
Publikováno v:
Hydrogen, Vol 3, Iss 4, Pp 433-449 (2022)
An under-expanded hydrogen jet from high-pressure equipment or storage tank is a potential incident scenario. Experiments demonstrated that the delayed ignition of a highly turbulent under-expanded hydrogen jet generates a blast wave able to harm peo
Externí odkaz:
https://doaj.org/article/3501818aaaf4423b908cf54681489656
Publikováno v:
Hydrogen, Vol 3, Iss 3, Pp 348-360 (2022)
Sudden releases of pressurised hydrogen may spontaneously ignite by the so-called “diffusion ignition” mechanism. Several experimental and numerical studies have been performed on spontaneous ignition for compressed hydrogen at ambient temperatur
Externí odkaz:
https://doaj.org/article/c0e3ec86f23e4933b0519aba5180b0d6
Publikováno v:
Hydrogen, Vol 2, Iss 4, Pp 386-398 (2021)
The use of hydrogen storage tanks at 100% of nominal working pressure (NWP) is expected only after refuelling. Driving between refuellings is characterised by the state of charge SoC
Externí odkaz:
https://doaj.org/article/da7d52701a4b490eb0bc9b538164050f