Answer:
Refrigeration is an artificial cooling made by humans. To be able to cool a space, refrigeration removes unwanted heat rejected at a higher temperature.
In 1842, a refrigerating system capable of producing ice was made. It was actually a failure but many scientists and inventors around the world were inspired by it.
By the turn of the 20th century, the massive growth of ice-harvesting industry had begun. But it also place a record of environments problems such as sewage and pollution in metropolitan suburbs. In early 1900s, the germ theory rose due to tainted ice from breweries. This caused numerous media outlets to publish articles connecting diseases such as typhoid fever with natural ice consumption. Ice harvesting became illegal in some other countries. This event gave birth to modern refrigeration and manufactured ice.
In 1840s, refrigerated railroad cars were introduced in the US for short-run transport of dairy products, but these used harvested ice to maintain a cool temperature.
Commercial refrigeration quickly progressed and only became a household technology until including these three challenges were overcome including it's large size, weight, and price and maintenance.
Refrigeration started to play a vital role in the distribution of food in 1880s. By 1900, the meat-packing houses of Chicago had adopted ammonia-cycle commercial refrigeration. The artificial refrigeration was used in almost every location by 1914. In the 19030s, when electricity was introduced to rural areas in the US, farmers quickly became the most productive in the world, introducing entirely new food systems. By the middle of the 20th century, refrigeration units were designed for installation on trucks. These refrigerated vehicles are used to transport perishable goods, such as frozen foods, fruit and vegetables, and temperature-sensitive chemicals. In Europe, most modern refrigerators keep the temperature between –40 and –20 °C, and have a maximum payload of around 24,000 kg gross weight.
In the late 19th Century and into the very early 20th Century, because of the ability of refrigeration in storing foods, fruits and vegetables out of season, or grown in distant locations were relatively low in prices. Refrigerators have led to a huge increase in meat and dairy products as a portion of overall supermarket sales. It also changed the purchasing routines in household products.
In this digital ear, the most widely used current applications of refrigeration are for air conditioning of private homes and public buildings, and refrigerating foodstuffs in homes, restaurants and large storage warehouses. One of the most influential uses of refrigeration was in the development of the sushi/sashimi industry in Japan. Many sushi connoisseurs were at risk of contracting diseases before the discovery of refrigeration. The dangers of unrefrigerated sashimi were not brought to light for decades due to the lack of research and healthcare distribution across rural Japan. Around mid-century, the Zojirushi corporation, based in Kyoto, made breakthroughs in refrigerator designs, making refrigerators cheaper and more accessible for restaurant proprietors and the general public. During this century, the world' first internet-connected refrigerator as launched. Several models with Wi-Fi and cameras that help keep track of when food is about to become spoiled were also released. Environmentally-friendly concept with the Zero-Energy Bio Refrigerator which uses a concept of cooling gel that suspends and cools food was also imagined by a Russian designer.
#brainlyfast
