It is difficult to imagine a modern kitchen without this indispensable unit that keeps food fresh and allows us not to think about daily trips to the market. However, the path to creating a device capable of artificially cooling objects took centuries and required the efforts of dozens of brilliant engineers and physicists. Many people mistakenly believe that the refrigerator had a single creator, but the real story is a chain of discoveries, patents and experiments that stretched over several centuries.
Initially, humanity used natural cold by storing ice in special glaciers. The turning point was the understanding of the principles of evaporation of liquids and compression of gases. It was these physical processes that formed the basis for the work of the first compressor unitsthat we see in every home today. The answer to the question of who exactly became the “first” depends on what is considered the criterion of success: a theoretical model, a working prototype or mass production.
In this article we will examine in detail the chronology of events, starting from ancient times and ending with the appearance of household appliances. You will learn how refrigerants changed, why the first refrigerators were dangerous to life, and which countries made the greatest contribution to the development of cryogenic technology. We will also touch on the role of domestic engineers in this process.
Forerunners of artificial cold: from ice to ether
Before the advent of electricity, people depended on natural cycles of water freezing for thousands of years. In Russia, China and European countries, deep cellars were built, where snow and ice were taken in winter, compacted and covered with sawdust for thermal insulation. This made it possible to store food until late autumn, but it was not “artificial” cold in the full sense of the word. The real revolution began when scientists tried to recreate the cooling process chemically. glaciers — deep cellars where snow and ice were taken in winter, compacted and covered with sawdust for thermal insulation. This made it possible to store food until late autumn, but it was not “artificial” cold in the full sense of the word. The real revolution began when scientists tried to recreate the cooling process chemically.
The first experiments were carried out using volatile liquids. In 1755, Scottish professor William Cullen demonstrated the first known artificial refrigeration experiment. He used a pump to create a vacuum over a vessel containing diethyl ether. Evaporating under reduced pressure, the ether took heat from the environment, turning water into ice. Although Cullen did not create a working device, he proved the very possibility of the process.
At the beginning of the 19th century, American inventor Oliver Evans developed a theoretical model of a closed-cycle refrigeration machine, but never built it. His ideas were later used by Jacob Perkins, who in 1834 received the first patent for a vapor-compression refrigeration machine. Perkins's device ran on ether and did produce ice, but it was bulky, noisy, and extremely dangerous due to the flammability of the refrigerant.
⚠️ Attention: Early refrigerants such as ammonia, sulfur dioxide, and ether were toxic or explosive. A leak in a living room could lead to poisoning or a fire, so the first refrigerators were installed in separate outbuildings.
The development of technology was hampered by the lack of suitable materials and understanding of thermodynamics. Engineers were looking for substances that could effectively cool without reacting with metals and without threatening human life. This search led to the creation of many unique, but often unsuccessful designs, which, nevertheless, moved science forward.
The birth of compressor technology: key inventors
The mid-19th century became a period of active race of engineers to create an efficient compressor. It was at this time that the foundations of the design were laid, which is used to domestic refrigerators to this day. The main goal was to create a reliable pump capable of continuously circulating refrigerant through a system of pipes.
In the 1850s, American physician John Gorey created an ice-making machine to help patients with malaria (cold air was believed to cure this disease). His device worked on air compression, but was extremely inefficient and energy-consuming. Nevertheless, Gori managed to cool the room, which became the forerunner of air conditioning systems.
The French engineer Ferdinand Carré was more successful. In 1859, he introduced an absorption refrigerator that ran on a mixture of water and ammonia. This design had no moving compressor parts, making it more reliable. Later in the 1870s, Carl von Linde in Germany created the first successful vapor compression machine using methyl ether and then ammonia. Von Linde machines were the first to be widely used in breweries.
- 🧊 John Gorey: Created the first machine for air conditioning and making ice for medical purposes.
- ⚙️ Ferdinand Carré: Invented the absorption cycle, which is still used in some types of refrigerators (for example, in automobiles or silent).
- 🏭 Carl von Linde: Developed an efficient compressor and gas liquefaction technology that made industrial refrigeration a reality.
By the end of the 19th century, refrigeration machines were already working in large factories, but remained too large and complex for an ordinary apartment. They required constant maintenance, refueling of engines and careful monitoring of pressure.
Electrification and entry into the mass market
The real breakthrough occurred at the beginning of the 20th century, when electricity became available in homes, and engineers learned how to make compressors compact and safe. Until this moment, a “refrigerator” was an insulated cabinet in which a piece of ice brought by an ice carrier was simply placed. The advent of the electric motor changed the rules of the game.
In 1913, the company General Electric introduced the first home electric refrigerator, but it was extremely expensive and complex. The compressor was located in the basement, and cold air was supplied to the kitchen through pipes. The situation changed in the 1920s, when Alfred Mellows created a refrigerator Frigidaire with a compressor located directly under the cabinet. This became an industry standard.
A huge step forward was the invention of freon in 1928 by Thomas Midgley Jr. The new refrigerant (R-12) was non-flammable and non-toxic (unlike ammonia and sulfur dioxide). This made it possible to begin mass production household appliancesthat could be safely placed in the kitchen. By the 1930s, refrigerators had become a symbol of prosperity for the American family.
| Year | Event | Significance |
|---|---|---|
| 1913 | First electric refrigerator (DOMELRE) | The beginning of the era of electric cooling in everyday life |
| 1926 | Invention of freon | Safety and mass production |
| 1927 | Monitor-Top model from GE | First massively successful refrigerator with a closed compressor |
| 1930s | The emergence of two-chamber models | Separation of the freezer and refrigerator compartments |
Despite their success, early electric models had serious drawbacks. Thermoregulation was primitive, often food either froze or spoiled. The motors worked very loudly, reminiscent of a tractor engine, and required manual starting every time they were turned on.
Soviet refrigerator: history of domestic production
In the Soviet Union, the question of who invented the refrigerator had its own specifics. While the West was busy equipping its kitchens with new products, the USSR was experimenting with creating its own base. The first attempts to establish production date back to the 1930s, when the Compressor plant in Moscow began to assemble units under a license from an American company. Model Kelvinator.
Model KhTZ-120, produced in 1937 at the Kharkov plant, became the first mass Soviet model. It was reliable, but heavy and consumed a lot of electricity. The compressor worked on an “on-off” principle without automatic adjustment, which required constant attention from the owners.
After the war, in the 1950s, a real boom began. The famous ZIS, Saratov and Biryusa appeared. These models already had automatic thermostats and quieter motors. The design was utilitarian, often with exterior enamel, but they lasted for decades. Many of these “oldies” are still working, which indicates the high quality of the build of that time.
⚠️ Attention: Old Soviet refrigerators used flammable refrigerant (isobutane or propane-butane mixtures) in small quantities. When repairing such rarities, you should not use an open flame or a sparking tool near the tubes.
The domestic school of refrigeration engineering has made a huge leap, creating a network of factories throughout the country. This made it possible to provide refrigerators in most urban apartments by the 1970s, turning a luxury item into a standard household appliance.
Why were older refrigerators louder than modern ones?
Old compressors had a linear drive and operated at higher speeds without inverter control. In addition, the lack of high-quality soundproofing materials in the case and the rigid fastening of the tubes transmitted vibration to the entire cabinet body.
Modern evolution: from No Frost to smart screens
In the second half of the 20th century, development followed the path of increasing comfort and energy efficiency. The main enemy of users remained the need for regular defrosting. The ice “coat” on the walls reduced the efficiency of work and took up time. The solution came with technology No Frost (without frost), which began to be widely implemented in the 1980-90s.
The operating principle of such systems is based on the circulation of dry cold air. The fan drives air through an evaporator hidden in the wall, where the moisture freezes out, and then dry air enters the chamber. This eliminated the need for users to defrost the refrigerator once a month. However, the technology has its own characteristics: products can air out faster, so modern packaging has become more important.
Today we are witnessing a new revolution - the introduction of inverter compressors smart home systems. The inverter does not turn off completely, but smoothly changes power, which allows:
- ❄️ Maintain the temperature with an accuracy of 0.1 degrees.
- 🔇 Operate almost silently.
- ⚡ Save up to 40% of electricity compared to classic models.
Modern models are equipped with Wi-Fi modules that allow you to control the temperature from a smartphone, create grocery lists and even order their delivery. The cameras inside allow you to look into the refrigerator while in the store so as not to buy too much.
Environmental problems and the future of refrigeration technology
The history of the refrigerator would not be complete without mentioning the environmental consequences. For a long time it was believed that freon (CFC) was an ideal substance. However, in the 1970s, scientists discovered that these gases, rising into the upper atmosphere, destroy the ozone layer that protects the Earth from ultraviolet radiation.
In 1987, the Montreal Protocol was signed, obliging countries to abandon the production of ozone-depleting substances. The search for new refrigerants began. First we switched to HCFC group freons (less harmful), and then to HFC, which do not harm ozone, but are powerful greenhouse gases. Today, the industry is switching to natural refrigerants: isobutane (R600a) and propane. They are safe for the atmosphere, but, as at the beginning of the 20th century, they require caution due to flammability.
The future of refrigerators is associated with finding a balance between efficiency and environmental friendliness. Models are being developed that use the magnetocaloric effect (cooling by a magnetic field) and thermoelectric systems. Perhaps in 50 years, compressors with moving parts will remain in museums, giving way to solid-state cooling systems.
⚠️ Attention: When disposing of an old refrigerator, it is strictly forbidden to open the cooling system tubes yourself. Residual refrigerant and oil may be harmful to the environment. Hand over equipment only to specialized collection points.
Thus, the path from ice blocks to smart cabinets was a long one. Each stage of development was accompanied by risks, mistakes and brilliant insights. Today we use the result of the work of hundreds of engineers, without even thinking about the complex physics hidden behind the white door.
☑️ Checking the condition of your refrigerator
Frequently asked questions (FAQ)
Why Can't you place a refrigerator next to a radiator or stove?
The refrigerator works like a heat pump: it takes heat from the inside and throws it out through the condenser grille (usually on the back wall or on the sides). If there is a high temperature around the unit (from a battery or stove), heat transfer deteriorates. The compressor is forced to work without interruption, trying to compensate for the heat, which leads to rapid wear and waste of electricity.
Who is considered the official inventor of the household refrigerator?
The household refrigerator does not have a single “father”. Oliver Evans came up with the cycle, Jacob Perkins made the first working prototype, Carl von Linde created an efficient compressor, and Alfred Mellows and General Electric engineers adapted the technology for the home, making it compact and safe.
Is old freon in a 90s refrigerator harmful?
Freon itself (R12 or R134a) in in a working refrigerator, it is not dangerous to humans, since the system is sealed. Danger arises only when depressurization occurs in a closed, unventilated room (suffocation) or when an open flame comes into contact with freon vapor (poisonous phosgene is formed). As long as the tubes are intact, there is nothing to be afraid of.
How often do you need to defrost a modern refrigerator?
If you have a model with a system No Frost, you do not need to defrost it specifically, it is enough to wash it 1-2 times a year. If the system is drip (crying effect), then the main defrosting cycle occurs automatically, but complete defrosting and washing are recommended to be carried out every 6-12 months for hygiene.