I'm not sure but i think it's to insulate the cool air so it doesn't get out and make the food inside go off.
The insulation efficiency of rigid polyurethane to keep the low temperature preservation of food . It is ideal for the insulation of refrigerating appliances.
Yes, thermocouple is used in fridges !
By using CFCs such as aerosols, old fridges, air-conditioning units and polystyrene foam
coralicigal
Polystyrene foam is used for its excellent insulating properties, which help to keep the interior of the fridge or freezer cold by reducing heat transfer. This insulation helps maintain the desired temperature and improve energy efficiency.
In 1800's people used fridges to preserve there food. They used snow to do this as electric was not invented, they brought snow from local places or from mountains... :) hope i helped!
Because it damages the ozone layer.
because fridges are magnetic and for decoration
Visco elastic foam is also known as memory foam. The polyurethane foam molds to a persons body shape. It is primarily used for mattresses and pillows.
They are used in fridges and spray cans and can cause pollution.
Foam padding can have many uses. A foam pad for chairs and seating help to furnish the chair for better comfort. Foam padding can also be used under carpeting for walking.
Foam mattresses are typically made from polyurethane foam, memory foam, latex, or a combination of these materials. These materials are derived from petroleum-based chemicals for polyurethane foam, rubber trees for latex, and other synthetic materials for memory foam.
Common fridge sizes available in the market include compact or mini fridges, standard size fridges, and large or French door fridges. Compact fridges are typically around 1.7 to 4.4 cubic feet, standard size fridges range from 18 to 25 cubic feet, and large or French door fridges can be 26 cubic feet or more.