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How Refrigerators Work

June - 13 - 2015

Have you ever wondered what happens inside a refrigerator and how can a metal box keep your food fresh and your beverages cold even on the hottest days? Food starts to go bad because of the bacteria breeding in it, bacteria which is likely to develop in low temperatures, so the cooler you keep the food, the more it will maintain fresh and proper to eat. Therefore, the refrigerator came as a saving idea to keep a low temperature for food to stay fresh. If you are curious about how refrigerators work, this article can clarify the working process of the amazing refrigerators. While the 2015 top refrigerators are too complicated to explain in just one article, we hope that the following lines will at least help you understand the basic technologies that most fridges use.

Particularities of the working process

The refrigerator has been around for many decades, helping housekeepers keep food inside them for many days. The working process, the components and the technologies used have evolved since the invention of the refrigerator, but the main idea remain basically unchanged. There are two things that are common in the working process of a fridge, namely that fact that a gas cools on expansion and that a cold surface receives warmth from a hot surface, while a hot surface cools when in contact with a cold surface.

The cooling cycle inside the components

The refrigerator’s working process consists of five basic components: a refrigerant, a compressor that controls the refrigerant’s flow, condenser coils filled with hot gas, evaporator coils placed on the outside of the fridge and an expansion device . All these components interact in such way to trigger a continuous cooling cycle which creates low temperatures inside the refrigerator. The compressor starts by compressing the refrigerant and raises its pressure to a point where it travels to the evaporator coils on the outside of the fridge. When the hot gas meets the cooler air in the kitchen, it turns into liquid, then cools down as it flows to the coils inside the refrigerator. Once inside the fridge, the refrigerant absorbs the heat then evaporates to a gas, travels back to the compressor and the cycle starts all over.

Modern refrigerators consist of state-of-the-art technologies

If you take a look at the finest refrigerator reviews, you will see that there is a world of differences between an old fridge and a state of the art refrigerator. Old refrigerators use a gas called Freon, which was proved to be harmful to the environment once it escapes from the components of the fridge, in case of any malfunction. To avoid any dangers, the 2015 top refrigerators use another type of gas called tetra fluor ethane, or HFC, which turns into a liquid at temperatures of -26.6 degrees Celsius. The working process of the modern refrigerators remained basically the same, although some of the components have been replaced with more state-of-the-art ones. However, a lot of refrigerators nowadays have a lot of unnecessary functions. If you research the finest refrigerator reviews, you will see that while new models come with useful improvements, they also come with luxury features which nobody really uses but which undoubtedly increase a fridge’s market value. If you plan on buying a new fridge, our advice for you is to check out various refrigerator ratings and focus on products which consume little energy and which are known to be durable. It also helps if you choose national brands, because if your refrigerator breaks down, it will be easier and cheaper to find replacement parts for it if it is manufactured locally.

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