A standardization proposal from South Korea for liquid hydrogen tanks was accepted as a draft standard at a conference. For urban air mobility vehicles, fuel tanks that store hydrogen in a liquid condition are essential parts.
By chilling hydrogen gas to a very low temperature of roughly minus 253 degrees Celsius, liquid hydrogen is produced (minus 423 Fahrenheit). The energy density of the liquid state is roughly ten times greater than that of the vapor state. In a zone free of regulations, in the eastern port city of Samcheok, South Korea has developed methods for storing and transporting liquid hydrogen. For demonstration purposes, special tanks that can retain the high pressure of liquefied hydrogen were created for drones and tank trucks.
At a symposium in Sydney for the worldwide standardization of liquid hydrogen technology, guidelines for technology developed by Choi Yong-nam, a researcher at the Korea Atomic Energy Research Institute (KAERI) with expertise in hydrogen storage, were chosen as a draft standard. Choi’s proposal for liquid hydrogen fuel cells for airborne mobility was approved by a committee under the International Organization for Standardization (ISO), and it contains manufacturing specifications, performance specifications, and demonstration techniques. In order to create precise worldwide standards, a team of professionals will work together.
The head of the Korean Agency for Technology and Standards (KATS), Lee Sang-hoon, stated in a statement on December 12 that “we would help South Korea to lead the international standardization using technology and experiences gathered in the hydrogen business.” Personal flying vehicles and drone taxis are both parts of urban air mobility. The global UAM market is anticipated to reach $86.8 billion, according to statistics made public by market research firm Statista.
Dr. Kang Seung-kyu of the Korea Gas Safety Corporation also made the decision to advocate for the international standardization of hydrogen charging techniques for ships, which deals with the secure charging of high-pressure hydrogen to ships at sea.
In order to examine the state of hydrogen pressure tanks using sound emission without interrupting hydrogen filling station operations, Dr. Kim Woon-kyung of Integrity Diagnostics Korea (IDK), a business that specializes in diagnostic measurement, also decided to develop a standard formula.
According to Lee Sang-hoon, director of the National Institute of Technology, “the government would offer support to help Korea to lead worldwide standardization in the global hydrogen business.”
