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I'm taking this to mean "how do refrigerators work?" A refrigerator (or fridge) is a heat exchanger attached to an insulated chamber; it removes heat from the chamber and pumps it outside. The rear of a refrigerator has plates which feel warm - this is the removed heat being released. To understand how a heat exchanger works, recall how cold you feel after getting out of a warm bath or pool; the cooling is caused by the water evaporating. Heat exchangers use a similar principle but with a coolant which boils at a low temperature. The coolant is pumped through two coils in the fridge; a condenser coil which is exposed to the outside air and an evaporator coil which is exposed to the air in the insulated chamber. As the coolant is compressed into a liquid in the condenser heat is released to the outside, in the evaporator the coolant evaporates - absorbing heat from the insulated chamber. A problem with fridges is that the coolant has usually been freon (a CFC), nowadays liquid propane gas is starting to gain favour.
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A refrigerator does not cool the food inside it properly if the food is too tightly packed?
Food is cooled from surrounding air particles and so if a packet is obstructing the vibration of the particles the food will be unable to cool.
Why and how was the refrigerator invented?
to keep food cold?
Why is the cooling unit of a refrigerator made at the top?
Heat rises... the warmth in the food will rise above the already cooler air inside the refrigerator.
What happens if your refrigerator gets flipped upside down?
you would have an upside down refrigerator, with a large mess of food, bottles, cans, etc. on your kitchen floor!
Why a room can be warmed by leaving open the door of an oven but cannot be cooled by leaving open the door of a kitchen refrigerator?
the second law of thermodynamics proves that heat always flows from hot to cold. It is hard to give good every day examples, since when you open the refrigerator door you feel cold but actually the room is warming the fridge.
Is it safe to store food in a pot in the refrigerator?
Of course you can. The food in the pot will not cause any harm to your refrigerator as long as the pot has cooled down. It's probably not safe to put the Teflon pot in the refrigerator if it scorching hot. That might not be safe. Mr. Know it all
A refrigerator does not cool the food inside it properly if the food is too tightly packed?
Food is cooled from surrounding air particles and so if a packet is obstructing the vibration of the particles the food will be unable to cool.
Are you supposed to put food in the refrigerator after it has cooled down?
It is better to only put hot food into a fridge after it has cooled. A lot of hot food would alter the coolness inside the fridge and cause the motor to start running when it didn't really need to.
How is the air cooled in a household refrigerator?
It goes through the pipes
What is An appropriate method for cooling a large quantity of food?
A large quantity of food must be cooled by immediate refrigeration. The refrigerator's temperature should be set as cold as possible and, if practicable, the food to be cooled should be refrigerated on shallow trays or dishes to allow for quick cooling. You could also put your trays of food into the freezer until cold, before covering or sealing and refrigerating.A large quantity of food must be cooled by immediate refrigeration. The refrigerator's temperature should be set as cold as possible and, if practicable, the food to be cooled should be refrigerated on shallow trays or dishes to allow for quick cooling. You could also put your trays of food into the freezer until cold, before covering or sealing and refrigerating.
Should food be cooled down before putting it fridge?
Yes, from what I have heard and read. Moving hot food to a cold refrigerator can cause bacteria to form and grow rapidly. The food should be cooled to room temperature before refrigerating.
What is the maximum time food must be allowed to cool out of as refrigerated unit?
Food doesn't specifically have to be cooled in a certain time. Food must be covered once it has cooled however, so don't leave it out for more than a few hours. ANSWER: For safety reasons, food must be cooled within 4 hours, otherwise pathogens can grow and make the food unsafe to eat. Never leave any food out of the refrigerator for more than 4 hours as well, for the same reason.
Is it true that keeping of hot food inside refrigerator will cause the refrigerator not to function?
Keeping hot food in the refrigerator will make the food cold. It will not damage your refrigerator.
Is a roast that was cooked and cooled in a crockpot and then sat out of the refrigerator in the same unheated covered crockpot for 8 hrs still safe to eat?
No food safety professional would say it is safe to eat. Discard it.
Can it is possible to use water cooled condensor for domestic refrigerator?
Did you get an answer? I've found some references to water cooled refrigerators on boats, but can't find anything online about residential models.
What does refrigerator?
It cools food
What did refrigerator do?
Preserves food.
