In the beginning before refrigerators how people preserve their food? Some of the early methods of food refrigeration methods include, snow, ice, cool streams, caves and cellars. The Chinese are chilling, to have been credited with food that was invented around 100 BC, then the British, the icehouse, these rooms Refrigerator U-Bahn built and designed to keep food cold until the summer there.
Actual refrigerators were invented and began to be used for commercial purposes;such as rail cars and grocery stores in 1890th It took another 20 years until refrigerators are designed for domestic use. The company behind the first home refrigerator is no other than the General Electric Company.
A few years later a company called Kelvinator introduced the first refrigerator with automatic controls, then over time the first Frigidaire self-contained unit were. Some of the early models of fridges used harmful chemicals to food, such as ammonia coolSulfur dioxide or methyl chloride as a refrigerant, which was later dropped for safer refrigeration methods.
The 1950s lead way to more innovations and features like automatic defrost and automatic ice machines came onto the market.
Then began in the 1970s, government officials to refrigerators, so they brought a higher energy efficiency, the elimination of chlorofluorocarbons in refrigeration sealed systems. Developed over time, so have the styles and types ofUnits. Now a day, you can choose from a number of different styles of refrigerators such as side by side, bottom freezer, freezer above freezing and so on.
Types of Modern refrigerators
Side by Side - this type of refrigerator / freezer and refrigerator have been developed side by side, these units larger than the top or bottom freezers models. If you have a large family, and you have space in your kitchen this is perfect.
bottom freezer refrigerator and freezer in theEnd of the refrigerator
Top-freezer - freezer on top of the refrigerator is
Compact refrigerator - if you live in a small space like a bachelor apartment then this could be for you.
Sub Zero - this is a kind of refrigerator and a brand, as well. Sub-Zero refrigerators, two air conditioning plants with clean air, the end result is fresher and longer lasting food.
Now, a fridge will be in 99.5% of households in North America spread.Newer models even offer water filtration systems, elegant stainless steel exterior and built.
0 ความคิดเห็น:
แสดงความคิดเห็น