It is difficult to imagine a modern kitchen without this humming cabinet that protects food from spoilage. However, the path to automatic cooling took centuries of trial and error. The history of the refrigerator is not just a chronology of inventions, but the struggle of mankind to preserve food resources.
Many mistakenly believe that the refrigerator appeared suddenly, as a result of the insight of one genius. In fact, this is the result of the evolution of thermodynamics and chemistry. The key point there was a transition from the use of natural ice to artificial cooling using refrigerants. It was this technological leap that allowed refrigerators to become available to the mass consumer.
In this article we will look at how refrigeration technology developed, who was at the origins of the industry and what stages household appliances went through to become what we see them today. Understanding the history of the device helps you better understand its operating principles.
Prerequisites for creation: from glaciers to glaciers
Long before the advent of electricity, people used natural cold. In ancient times, snow collected in winter ice was stored in deep holes, covered with straw and sawdust. In Russia, such storage facilities were called glaciers or cellars. This made it possible to keep food fresh throughout the warm season, but the dependence on climate was absolute.
The situation began to change in the 18th century, when scientists began experimenting with the evaporation of liquids. Scottish physicist William Cullen demonstrated the principle of artificial refrigeration in 1748 by evaporating ether in a vacuum. However, his experience was purely for demonstration purposes and had no practical application for everyday life.
Only in the 19th century, with the development of the chemical industry, did the first prototypes of refrigeration machines appear. Inventors were looking for substances that could effectively absorb heat during the transition from a liquid to a gaseous state. This principle formed the basis of all future compressor systems.
- ❄️ The use of natural ice required huge ice cutting machines and complex delivery logistics.
- 🧪 The first chemical experiments with ether and ammonia laid the foundation for thermodynamics.
- 🏭 The Industrial Revolution gave impetus to the creation mechanical pumps and compressors.
Why did the ice melt so quickly?
In early models, the ice melted quickly due to the lack of high-quality thermal insulation. The walls were made of wood or thin metal, not understanding the importance of the air gap and modern insulators like polyurethane foam.
Official date and creator of the first prototype
If you look for a specific date and name, then technology historians often point to 1834. It was then that the American doctor and inventor Jacob Perkins received the first patent for a machine for making ice. His device operated in a closed cycle, using low-pressure evaporation of ether.
Although Perkins' machine was bulky and inefficient by modern standards, it proved the possibility of a continuous cooling cycle. Later, in the 1850s, a French engineer Edmond Carré created an absorption machine that ran on a mixture of water and ammonia. This invention became safer and became widespread in industry.
It is important to note that the first refrigerators were not intended for the home, but for factories, breweries and meat warehouses. The household sphere remained neglected due to the high cost and size of the equipment. The first household electric refrigerator appeared only in 1913, which became a turning point in the history of comfort.
⚠️ Attention: Dates of inventions may vary in different sources, since many patents were filed in parallel in different countries. The indicated years refer to the receipt of valid patents or the launch of mass production.
Evolution of refrigerants: from ammonia to freon
For a long time, the main working fluid in refrigerators was ammonia. It is effective, but toxic and a fire hazard if leaked. At the beginning of the 20th century, ammonia leaks in homes led to tragedies, which hampered the mass introduction of refrigerators into apartments. A safe alternative was needed.
In the 1920s, the company and chemist Thomas Midgley developed a synthetic refrigerant known as General Motors and chemist Thomas Midgley developed a synthetic refrigerant known as freon (R-12). This substance was non-flammable, odorless and non-toxic to humans. The advent of freon made it possible to make refrigeration units compact and safe, which provoked a boom in sales.
However, at the end of the 20th century, it turned out that freons destroy the ozone layer of the Earth. This led to a new round of evolution: the transition to ozone-safe refrigerants, such as R-134a and R-600a (isobutane). Modern models use these gases, which combine efficiency and environmental friendliness.
- 🌡️ Ammonia (R-717) is effective, but dangerous, used in industrial cold.
- 💨 Freon (R-12) is a safety revolution, but harmful to the environment.
- 🌿 Isobutane (R-600a) is a modern standard, safe for the ozone layer.
From industrial giant to kitchen cabinet
The transition of the refrigerator from the workshop to the kitchen did not happen immediately. The first household models, such as DOMELRE (1913) or Frigidaire (1918), were more reminiscent of complex laboratory installations. They had wooden cases, external compressors and required constant maintenance.
In 1926, a Danish engineer Christian Stranstrup developed an absorption refrigerator that operated silently because it had no moving parts (compressor). This made it possible to install the units directly in the kitchen without fear of noise. At the same time, compressor models were developing, which became more and more compact.
By the 1930s, refrigerators began to be equipped with thermostats, which made it possible to automatically maintain the temperature. Previously, the user had to manually adjust the power or monitor the refrigerant level. The appearance automation made the device truly “smart” for its time.
| Year | Model / Event | Key feature | Country |
|---|---|---|---|
| 1834 | Perkins machine | First patent for the compression cycle | USA |
| 1913 | DOMELRE | First electric household refrigerator | USA |
| 1926 | Monitor-Top (GE) | Mass production, compressor on top | USA |
| 1930 | Refrigerator with freon | Safe refrigerant for home | USA |
The Soviet school of refrigeration: from "KhTZ" to "Biryusa"
In the USSR, the history of household appliances The cold began later than in the West. The first mass-produced refrigerator was KhTZ-120, produced in 1937 at the Kharkov plant. It was an absorption-type unit that ran on kerosene or gas, which was important in conditions of unstable power supply.
After the war, in 1951, production of the famous Moskvich (ZIL model) began at the Moscow Zil plant. These heavy, reliable machines with cast iron compressors operated for decades. Later, factories in Krasnoyarsk (Biryusa) and Naberezhnye Chelny (Narodny) joined production.
Soviet engineers relied on maintainability and durability. Many models of that time did not have automatic defrosting, requiring regular manual care. However, the simplicity of the design made it possible to repair them using a minimal set of tools, which was critically important in conditions of shortage.
- 🇷🇺 HTZ-120 is the first-born of Soviet household refrigeration (absorption).
- 🏭 ZIL-Moscow is a symbol of the reliability and heaviness of Soviet equipment.
- ❄️ "Biryusa" is the first Soviet refrigerator with automatic defrosting (No Frost).
⚠️ Attention: Old Soviet refrigerators use R-12 refrigerant (freon), which is prohibited for production. When repairing or disposing of such equipment, it is necessary to comply with environmental standards and not release gas into the atmosphere.
Modern technologies: No Frost and smart home
The end of the 20th century was marked by the introduction of the system No Frost (no frost). This technology eliminated the need for manual defrosting by circulating dry air inside the chambers. Although such refrigerators make a little more noise and dry out food (packaging is required), ease of use has made them market leaders.
Today, refrigerators are turning into multimedia centers. Models with Smart functions can track the expiration date of products, create shopping lists and be controlled from a smartphone. Inverter compressors make the unit operate virtually silent and energy efficient.
The future belongs to environmentally friendly materials and precise climate control. Chambers with variable pressure and separate humidity zones allow you to store vegetables, meat and fish in ideal conditions for weeks. History has come full circle: from simply preserving ice, we have come to recreate the ideal environment for each product.
☑️ What to look for when choosing a modern refrigerator
Frequently asked questions (FAQ)
Who exactly invented the refrigerator: Perkins or Carré?
Jacob Perkins created the first working prototype of a compression machine in 1834, but Edmond Carré later improved the technology, making it more suitable for industrial use using the absorption cycle. Both made key contributions.
Why were the first refrigerators so noisy?
Early models used open-type piston compressors and did not have high-quality soundproofing casings. In addition, refrigerants required high pressure to operate, which increased the vibration and noise of the unit.
When did they stop using dangerous ammonia in refrigerators?
In household models, the transition to safe freons began in the 1930s after the discovery of Thomas Midgley. However, ammonia is still used in industrial refrigeration units due to its high efficiency and low cost.
Is it still possible to buy an ammonia refrigerator?
Yes, absorption refrigerators (often running on a mixture of ammonia and water) are still produced. They are popular in mobile homes and country houses, as they can operate on gas or 12V without having moving parts.