In 1890, Linde moved back to Munich where he took up his professorship once more, but was soon back at work developing new refrigeration cycles.
22.
Turbomachines may be further classified into two additional categories : those that absorb energy to increase the fluid pressure, i . e . pumps, refrigeration cycles.
23.
A " refrigeration cycle " describes the changes that take place in the refrigerant as it alternately absorbs and rejects heat as it circulates through a refrigerator.
24.
Some elevator air conditioners can be used in countries with cold climates if a thermostat is used to reverse the refrigeration cycle to warm the elevator car.
25.
The first Vapor-compression refrigeration cycle using ether was invented in 1834 and a similar cycle using ammonia was invented in 1873 and another with sulfur dioxide in 1876.
26.
Although it burned natural gas, it should not be confused with vapor-compression refrigeration cycle and was unique in its use of an internal combustion engine to drive the compressor.
27.
The first absorption refrigeration system was patented by Ferdinand Carre in 1859 . This refrigeration system had mechanical pumps and throttling valves which change the pressures in the refrigeration cycle.
28.
These refrigerators had a variety of applications for further scientific research and technology, and the Gifford-McMahon refrigeration cycle on which they were based became an important standard for the semiconductor industry.
29.
This is a standard refrigeration cycle, save that the " cold " side of the refrigerator ( the evaporator coil ) is positioned so it is outdoors where the environment is colder.
30.
The cycle is performed as a refrigeration cycle that is analogous to the Carnot refrigeration cycle, but with increases and decreases in magnetic field strength instead of increases and decreases in pressure.
