Last Updated Sat, 11/09/2024 - 18:49
Fuel Cell Codes and Standards
… The Hydrogen Station Permitting Guidebook is intended to help local jurisdictions and hydrogen station developers navigate and streamline the … process. It also provides stakeholders with background on hydrogen and fuel cell electric vehicles, California’s …
Last Updated Thu, 06/19/2025 - 14:36
FAQ
… relief valve that protects the vaporizer from a blocked-in liquid situation between shutoff valves and/or check valves. … be sections of line on the vaporizer bypass where cold gas/liquid could be trapped between valves if closed when cold. … considering the following design features? (1) Cold hydrogen at the pump discharge is directed along two paths. …
Last Updated Mon, 06/30/2025 - 16:38
FAQ
… it’s also possible that the cold temperatures from the hydrogen itself can freeze them and progressively block the stack over time. Liquid rainout is unlikely since nearly all relief devices and manual valves will vent gas rather than liquid. Note that this can still be as cold as -420 F so will …
Last Updated Fri, 06/07/2024 - 00:19
HyARC Data Page
… Contains lower and higher heating values for hydrogen and various solid, liquid, and gaseous fuels. … Lower and Higher Heating Values of Hydrogen and Other Fuels …
Last Updated Wed, 07/09/2025 - 16:19
FAQ
… common odorants will contaminate fuel cells. Additionally, hydrogen's small molecule and high buoyancy make it … are none currently in use. Like liquefied natural gas, liquid hydrogen also can’t be odorized due to its cryogenic …
Last Updated Fri, 04/18/2025 - 19:40
HIAD Event
… Huge explosion of liquid chlorine mixed with hydrogen took place on pulp and paper plant in Arkhangelsk. More than 50 tons of liquid chlorine exploded. … Explosion of a Chlorine-Hydrogen …
Last Updated Thu, 06/26/2025 - 16:56
FAQ
… There is no specific requirement not to vent liquid hydrogen from a vent system. Best practice would be to only … gas from the top of the vessel to relieve pressure. If liquid must be vented, it should be vaporized first. Note: …
Last Updated Sat, 11/09/2024 - 18:46
Fuel Cell Codes and Standards
… this guide; including 1. Regulator’s Guide to Permitting Hydrogen Technologies – Overview 2. Module 1 – Permitting … Fuel Cell Installations 3. Module 2 – Permitting Hydrogen Motor Fuel Dispensing Facilities … Published … 2004. Available at Regulators' Guide to Permitting Hydrogen Technologies - Overview(PDF) (14pp): …
Last Updated Fri, 04/18/2025 - 19:40
HIAD Event
… A tanker carrying liquid hydrogen overturned without rupturing. Traffic on an … highway was closed throughout the afternoon and evening. … Hydrogen Tanker Overturn (144) …
Last Updated Wed, 07/23/2025 - 22:57
Safety Culture Case Studies
… is supplied by a vendor-owned system that vaporizes liquid nitrogen and supplies it to the facility’s … Safety Management System (PSMS) Manager included the liquid nitrogen supply system in the PSMS because the loss of …
Last Updated Fri, 04/18/2025 - 19:40
HIAD Event
… The station was storing 6,000 litres of liquid hydrogen in ten tanks. Rescue services were alerted and the … the storage by compressing 4 bar (60 psig) hydrogen from a liquid hydrogen tank up to the 380 bar (5500 psig) compressed …
Last Updated Sat, 11/09/2024 - 20:03
Fuel Cell Codes and Standards
… … This Standard provides background information and a hydrogen fuel quality standard for commercial proton exchange … information on how this standard was developed by the Hydrogen Quality Task Force (HQTF) of the Interface Working … This document is now the commodity standard for hydrogen vehicle fuel, and it has been adopted by the State …
Last Updated Mon, 11/04/2024 - 18:12
Fuel Cell Codes and Standards
… and development of fuelling protocols for compressed hydrogen gas dispensing to vehicles with compressed hydrogen storage of fuel. Published 2024. Available at www.iso.org … ISO 19885-1 Gaseous Hydrogen – Fuelling protocols for hydrogen-fuelled vehicles …
Last Updated Fri, 04/18/2025 - 19:40
HIAD Event
… Hydrogen release from a road truck transporting liquid hydrogen … Hydrogen Release from a Lh2 Road Truck (43) …
Last Updated Wed, 07/23/2025 - 22:32
Safety Culture Case Studies
… A fire and deflagration explosion happened at a liquid waste injection well site when basic sediment and … workers were killed, and three others were injured. The liquid waste injection site was owned by one company, the … extracted. When the truck was being unloaded at the liquid waste injection site, hydrocarbon vapors from the tank …
Last Updated Wed, 07/09/2025 - 15:31
FAQ
… such as pressure, temperature, and flow. The sub-cooled liquid hydrogen (sLH2) approach for fueling is comparable to other … at 350 bar(5100 psi). sLH2 systems operate more like a liquid hydrogen (LH2) system that operates at a slightly …
Last Updated Fri, 04/18/2025 - 19:40
HIAD Event
… A hydrogen plant exploded, throwing debris for tens of metres … plant reportedly had a capacity of 3,600 tonnes/year of liquid hydrogen. On November 13 it was reported that the … no one was killed. On November 19 it was reported that the liquid hydrogen section appeared to have been destroyed. …
Last Updated Thu, 06/19/2025 - 16:07
FAQ
… be evaluated, but if a constant flow of either nitrogen or hydrogen is provided, then the configuration should be … system back in service. If purging becomes required for a liquid hydrogen vent system, the only acceptable gas per CGA … helium, as this is the only gas that does not solidify at liquid hydrogen temperatures. … 947 … 894 … 882 … 958 … 924 …
Last Updated Fri, 11/08/2024 - 17:35
Fuel Cell Codes and Standards
… 10,000 psig. Article KD-10: For all vessels in gaseous hydrogen transport and storage service. Each pressure … A Project Team on Hydrogen Tanks is developing new rules for metallic and composite construction for hydrogen tanks operated at pressures up to 15,000 psig. Its …
Last Updated Thu, 06/19/2025 - 15:38
FAQ
… the end use application. There are a variety of grades of hydrogen that can be purchased. The H2 purity will also vary … production method. CGA G-5.3, Commodity Specification for Hydrogen, lists several typical purities of both liquid and gaseous hydrogen. Standard GH2 available from most …
