The National Large Scientific Research Equipment "Development of Large-scale Low-temperature Refrigeration Equipment" supported by the Ministry of Finance and the Institute of Physical and Chemical Technology of the Chinese Academy of Sciences passed the acceptance on the 29th. This is China's first self-developed million-cubic-grade liquid hydrogen temperature zone cryogenic refrigeration equipment, which can reach a cooling temperature of 20K, equivalent to -253 °C, cooling capacity can reach more than 10,000 watts. The equipment can not only meet the needs of large-scale refrigeration equipment in the liquid hydrogen temperature zone, but also promote the development of advanced technologies in related fields.
The large-scale cryogenic technology in the liquid hydrogen temperature zone is a major key technology that has long affected the scientific development of China's space industry and the frontier. Scientists told reporters that with this refrigeration equipment, it is possible to build a "big refrigerator" that can provide space-related environment for simulating the space temperature of related equipment to enter space, and also can create cryogenic rockets. The required liquid hydrogen fuel can meet the needs of sophisticated and critical systems in many fields such as large-scale scientific engineering, new energy, and biology.
In order to grasp the initiative of high-tech development in related fields, in 2011, the Ministry of Finance deployed the major equipment development task of “large-scale cryogenic refrigeration equipment developmentâ€. Through decades of accumulation of cryogenic technology, researchers from the Chinese Academy of Sciences have overcome numerous difficulties and independently developed large-scale cryogenic refrigeration equipment with a technical index of 10kW/20K and adiabatic turboexpander adiabatic efficiency of ≥70%.
“From now on, China’s launch vehicles can use our own equipment to produce liquid hydrogen fuel!†The researchers told reporters that at present, with the support of the Ministry of Finance, the Chinese Academy of Sciences has launched the second phase of large-scale cryogenic refrigeration equipment development work, will carry out the lower temperature area The development of large-scale cryogenic equipment (liquid helium/superfluid helium) further meets the higher and broader needs of China's strategic high-tech fields. (Reporter Du Fang)
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