The history of household appliances is full of names of engineers and inventors, whose developments radically changed the way of life of mankind. The question of who exactly invented the electric refrigerator does not have one simple answer, since the creation of this device was the result of the evolution of technology over several decades. From the first experiments with the evaporation of liquids to the advent of automatic compressors, the path was long and full of technical difficulties.
Until the beginning of the 20th century, food preservation depended exclusively on natural ice, which was cut off in winter and stored in glaciers. Electric refrigerator became a symbol of the technical revolution, which made it possible to obtain cold artificially at any time of the year. It was the automation of the cooling process that made this device accessible to the mass consumer, and not just to the wealthy segments of society.
In this article we will examine in detail the chronology of events, the names of key inventors and the technical features of the first models. Understanding the history of the development of refrigeration technology helps to better understand the operating principles of modern devices and appreciate the complexity of engineering solutions that we use every day.
Prerequisites for the emergence of artificial cold
Even before the advent of electricity, scientists understood the principles of heat transfer. In 1748, Scottish physicist William Cullen demonstrated the first artificial cold, using a pump to create a vacuum over diethyl ether. However, its installation was more of a laboratory experiment than a practical device. Refrigeration technology required the creation of a closed cycle where the refrigerant could circulate, giving off heat to the outside.
In the mid-19th century, the American physician John Gorey created a machine for making ice using a compressor. His device worked, but was bulky, noisy and required constant maintenance. Steam engines, which were then used to drive compressors, made such installations unsuitable for installation in the kitchen of an ordinary home. In addition, the refrigerants used, such as ammonia and sulfur dioxide, were toxic and explosive.
Why were the first refrigerators dangerous?
The first models used flammable and toxic gases such as methyl chloride and sulfur dioxide anhydride A leak of such refrigerant in a confined kitchen space could lead to poisoning or an explosion, so early electric refrigerators were often installed in separate outbuildings or basements.
The key moment was the invention compression cycle. French engineer Charles Tellier successfully used ether as a refrigerant in the 1980s, but his systems were still too large for domestic use. Engineers needed to find a way to make the system compact, safe and, most importantly, automatic, so that the user did not have to constantly monitor the pressure and level of substances.
- 🧊 The use of natural ice was seasonal and depended on the climate.
- ⚙️ The first mechanical refrigerators worked on steam and were huge.
- ☣️ The toxicity of early refrigerants limited their use in residential buildings.
- 🔌 The lack of a stable power supply slowed down mass production.
⚠️ Attention: Early experiments with gases often led to accidents. It took engineers a long time to develop safe synthetic refrigerants such as freon, which appeared much later than the first electric models.
General Electric and the Topi monitor: the birth of automation
The turning point in history was the beginning of the 20th century. In 1911, the company General Electric (GE) introduced what is considered the first true electric refrigerator for home use. Its creator was the French monk and inventor Marcel Audiphren. He developed a system that used the absorption principle, but it was GE that was able to set up production and bring the design to fruition.
The model was called "Monitor-Top" (Swamp Monitor) and appeared on the market in 1927. It got its name from the distinctive cylindrical compressor located on top of the casing, which resembled an ironclad from the American Civil War. This device became the first mass-produced refrigerator that used a safe (by the standards of that time) refrigerant - sulfur dioxide, although later it was also abandoned in favor of freon.
The success of the "Monitor-Top" lay in its reliability and relatively low price for that time. The device operated silently compared to its competitors and did not require constant attention. Automatic thermostat maintained the set temperature by turning the compressor on and off without human intervention. This was a revolution: the refrigerator turned from a complex machine into a convenient household appliance.
Despite the success, the design had its own characteristics. The compressor and condenser were located on top, which provided natural air circulation for cooling, but made the top of the device hot. GE engineers sealed connections were used, which was a novelty that avoided gas leaks for many years of operation.
Alfred Mellows and the brand Kelvinator
While General Electric was working on its projects, another branch of history was developing in parallel. In 1914, engineer Alfred Mellows, who worked for the company NAF (National Air Cooling Company), created the first fully automatic electric refrigerator. His device did not require winding or manual adjustment during the day, which was a critical difference from previous models.
Mellows named his brainchild "Kelvinator" in honor of the famous physicist Lord Kelvin, who laid the foundations of thermodynamics. In 1918 the company began mass production. A feature of the design was the use of water cooling of the condenser, which made the system efficient, but required connection to a water supply system, which was not always convenient.
Competition between absorption technologies (which GE used in early models and Electrolux) and compression (Kelvinator) was active. Compressor models, such as Kelvinator, turned out to be more productive and allowed food to be frozen faster. It was Mellows' technology that laid the foundation for the modern design of the bottom-mounted or side-mounted refrigerator.
- ❄️ Alfred Mellows created the first fully automatic refrigerator.
- 🏭 The Kelvinator brand became synonymous with reliability in the 1920s.
- 💧 Early models often required connection to a water supply for cooling.
- 📉 Mass production allowed the price to be reduced from $700 to $200 by 1930.
⚠️ Attention: Technical specifications and installation requirements for refrigeration equipment change. If you are planning to install a retro model or specific industrial equipment, check the current manufacturer's instructions, as old safety standards may differ from modern ones.
The evolution of refrigerants: from ammonia to freon
One of the main obstacles to the development of electric refrigerators was safety. In the 1920s, ammonia, methyl chloride and sulfur dioxide were used in everyday life. All these substances were highly toxic or flammable. A leak of methyl chloride, for example, could cause a fire or serious poisoning of occupants. Engineers were looking for a substance that would be inert, non-flammable and non-toxic.
In 1928, chemist Thomas Midgley Jr., working for the company Frigidaire (a division of GM), synthesized dichlorodifluoromethane, known to us as freon-12 (R-12). This discovery was a turning point. Freon had no odor, did not burn and was not poisonous under normal conditions. This made it possible to place the compressor and pipelines directly inside the kitchen cabinet, making refrigerators compact and safe.
With the advent of freon, a real production boom began. Refrigerators began to be sold in the millions. However, as it turned out later, freons turned out to be destructive to the Earth's ozone layer. At the end of the 20th century, the search began for new, environmentally friendly refrigerants, such as those used in modern models. The circle is closed: we returned to hydrocarbons, but we learned how to make systems absolutely sealed. isobutane (R600a), which are used in modern models. The circle is closed: we returned to hydrocarbons, but we learned how to make systems absolutely airtight.
| Refrigerant | Period of use | Safety | Ecological impact |
|---|---|---|---|
| Ammonia (R717) | 1850–1930s | Toxic, explosive | Safe for nature |
| Sulfur dioxide (R764) | 1920-1930s | Highly toxic | Forms acid rain |
| Freon-12 (R12) | 1930–1990s | Safe for humans | Destroys the ozone layer |
| Isobutane (R600a) | 1990–present. time | Explosive if leaked | Environmentally neutral |
Modern refrigerators use a minimum amount of refrigerant, and control systems have become digital. Inverter compressors allow you to precisely regulate power, saving energy and reducing noise. The story of the search for the perfect refrigeration substance shows how science balances efficiency, human safety and preservation of the environment.
Design features of the first models
The first electric refrigerators bore little resemblance to modern cabinets. They often consisted of a wooden body with a metal inner chamber. Thermal insulation was made from cork, sawdust or fiberglass, which was less effective than modern polyurethane foam. The compressor, as mentioned, was often taken upstairs or even outside the kitchen.
The defrosting system in the first models was absent as a class. Evaporator it was an open tube or plate on which a layer of ice was constantly growing. Users had to manually chip the ice with a knife or wait for the refrigerator to thaw. This created inconvenience and increased humidity in the chamber, which could spoil the products.
The electrical circuit was extremely simple: a motor, a start relay and a thermostat. No electronics, control boards or displays. Reliability was ensured by the safety margin of metal parts. Many refrigerators of the 1950-60s, such as the legendary ZIL or Saratov, still work, requiring only replacement of the seal and refrigerant.
- 🪵 The cases were often made of wood with metal lining inside.
- 🔨 The ice had to be broken off manually with special scrapers.
- 🔌 The starting relay often made a loud click when turned on.
- 🌡️ The accuracy of maintaining the temperature was low (±5 degrees).
The influence of the invention on everyday life and society
The advent of the electric refrigerator changed not only the kitchen, but the entire food industry. People no longer depend on daily trips to the market. It became possible to buy food for future use and store leftover food without the risk of poisoning. This reduced the amount of food waste and changed the diet of families.
Before the widespread introduction of electric refrigerators in the 1930s, more than 20% of all cases of food poisoning were associated with the consumption of spoiled dairy products and meat. The refrigerator has become a guarantor of sanitary safety. The geography of trade also changed: food could be transported thousands of kilometers, leading to the globalization of the food market.
For women, who at that time were traditionally responsible for the household, the refrigerator became a real liberation. The time spent on cooking and shopping for fresh food has decreased. It became possible to freeze semi-finished products, which gave rise to a new culture of consumption. Sociologists they note that the refrigerator became one of the symbols of the middle class in the 20th century.
Frequently asked questions (FAQ)
Who is considered the main inventor of the household electric refrigerator?
It is impossible to name one person. Marcel Audiphren created the first successful model for GE (Monitor-Top), and Alfred Mellows developed the first fully automatic refrigerator, the Kelvinator. Both were key contributors to the mass adoption of the technology.
When did refrigerators become available to ordinary people?
In the 1920s, refrigerators were a luxury and cost about $700 (a huge sum at the time). By the 1930s, with the advent of mass production and the advent of safe refrigerants, prices fell and appliances became affordable to the middle class.
Why were the first refrigerators so noisy?
Early compressors were piston compressors, operated at high speeds and did not have effective sound insulation. In addition, refrigerants were used that required high pressure for condensation, which increased the load on the engine.
Which refrigerator was the first in the USSR?
The first mass Soviet refrigerator was KhTZ-120, produced by the Kharkov Tractor Plant in 1937. It was a copy of the American model General Electric Monitor-Top, but adapted to local production conditions.