Jefferson built the SNS superconducting accelerator and helium refrigeration system. Figure 1 provides a schematic diagram of the components of a typical vapor-compression refrigeration system. The refrigeration requirements here is defined as electrical power to operate the refrigeration system. He noted the importance of the refrigeration system buried beneath the concrete. The resulting cooling supplements or replaces the operation of a compressor-based refrigeration system. The initial model, the Cray-1A, weighed 5.5 tons including the Freon refrigeration system. The first practical vapor compression refrigeration system was built by James Harrison, a Scottish Australian. In 1834, the first working vapor-compression refrigeration system was built. To reduce energy costs, the refrigeration system was idle. The temperature of the water controls the refrigeration system through a thermostat. In a cascade refrigeration system, two or more vapor-compression cycles with different refrigerants are used. A redundant refrigeration system consists of integrated primary and back-up refrigeration units. A refrigeration system utilizes a compressor, a turboexpander and an electric motor. Cooltech Applications launched their first commercially available magnetic refrigeration system on 20 June 2016. The refrigeration system these dryers use is similar to home and commercial air conditioning systems.