The Evolution of Refrigeration: From Carl Von Linde to Modern Cryogenic Systems

Refrigeration processing, a pivotal facet of modern industry and daily life, finds its roots in the pioneering work of Carl Von Linde. Linde's journey into refrigeration began in the late 19th century with his development of compression refrigerating machines, initially utilizing methyl ether as a refrigerant. Despite the challenges posed by this early refrigerant, Linde's determination led to significant advancements in the field.

In 1874, Linde established a methyl ether unit, laying the groundwork for industrial-scale refrigeration processes. His meticulous study of thermodynamic efficiency paved the way for improved refrigerating machinery, culminating in the founding of the Gessellschaft fur Linde’s Eismachinen in Wiesbaden. By 1891, when Linde departed Wiesbaden to focus on teaching and research, over 1200 of his refrigeration machines had been installed worldwide, marking a transformative era in refrigeration technology.

One of Linde's most notable contributions was the liquefaction of oxygen, a feat previously deemed unattainable in significant quantities. Linde ingeniously combined two known effects: a countercurrent heat exchanger arrangement and refrigeration through air expansion. By harnessing the cooling effect produced by expanding air, Linde devised a simple yet efficient valve system, surpassing the limitations of piston expansion engines at low temperatures. His design, including a spiral heat exchanger, revolutionized industrial gas development and laid the foundation for cryogenic systems.

Linde's innovations did not go unnoticed, earning admiration from esteemed scientists like D. Mendeleev and N. Umov in Russia. The acquisition of Linde's air liquefier by Moscow University in 1898 marked the establishment of the first cryogenic laboratory in Russia, heralding a new era of scientific exploration and education.

Over the decades, Linde's principles have continued to shape the evolution of refrigeration technology. Today, cryogenic systems play a vital role in diverse fields, from healthcare and food preservation to space exploration and scientific research. Modern refrigeration processes, built upon the pioneering work of Carl Von Linde, stand as a testament to human ingenuity and the relentless pursuit of innovation in the quest for a cooler, more efficient world.
The Evolution of Refrigeration: From Carl Von Linde to Modern Cryogenic Systems

Refrigeration process

At the end of 3rd century B.C. Philon of Byzantium invented an apparatus for measuring temperature. Water was the first refrigerant to be used in a continuous refrigeration system by William Cullen (1710-1790) in 1755.

Oliver Evans (1755-1819) proposed the use of a volatile fluid in a closed cycle to produce ice from water. He described a practical system that uses ethyl ether as the refrigerant. Early commercial refrigerating machines developed by James Harrison (1816-1893) also used ethyl ether as refrigerant.

In 1834, an American expatriate to Great Britain, Jacob Perkins, built the first working vapor-compression refrigeration system in the world. It was a closed-cycle device that could operate continuously. A similar attempt was made in 1842, by American physician, John Gorrie, who built a working prototype, but it was a commercial failure. A patent for use of a commercial refrigeration process for first was registered in 1842.

The first mechanical refrigerators for the production of ice appeared around the year 1860. In 1866, the American T.S.C. Lowe (1832-1913) introduced carbon dioxidecompressor. However, it enjoyed commercial success only in 1880s due largely to the efforts of German scientists Franz Windhausen (1829-1904) and Carl von Linde (1842-1934).

William Thomson (Lord Kelvin) in 1852 introduced the thermodynamic scale of temperature and described the concept of a “heat pump,” for heating a house. In 1880 the first ammonia compressors and insulated cold stores were put into use in the USA.

Electricity began to play a part at the beginning of this century and mechanical refrigeration plants became common in some fields: e.g. breweries, slaughter-houses, fishery, ice production, for example.

The use of refrigeration to reduce the temperature of food below the point of ice crystallization was developed by Birdseye in the 1920s.

In 1918, Kelvinator Company introduced the first refrigerator with any type of automatic control. The absorption refrigerator was invented by Baltzar von Platen and Carl Munters from Sweden in 1922. It became a worldwide success and was commercialized by Electrolux.

After the Second World War the development of small hermetic refrigeration compressors evolved and refrigerators and freezers began to take their place in the home.
Refrigeration process