Helium is the most common element in the universe except hydrogen, but it is difficult to find on earth despite its high general abundance. Part of the problem is that it is non renewable, so its low density means that it will only escape into the atmosphere unless specifically captured during mining. To this end, [Miaomiao] has maintained a helium recovery system for a laboratory, which will be described in detail in this build.
The purpose of this system is to provide refrigerant for other projects in the laboratory. Liquid helium is about 4 Kelvin, which is very useful in various laboratory tests, but its cost is very high. The recovery system of [Miaomiao] is the gaseous helium recovered from these tests. The equipment converts it into extremely cold liquid helium during the closed cycle. This article outlines the entire system, reviews some of the troubleshooting they have had to do recently, and shows many of the required special tools.
Low weight gases like this are also difficult to handle because of their small atomic size, which means that they can easily escape fittings, pipes and equipment compared to other gases. Therefore, the equipment is very professional and worth seeing. However, for a less laboratory based helium project, please switch to this helium filled guitar.