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Globally. Food in a refrigerator with its door open. A refrigerator, commonly fridge, is a commercial and home appliance consisting of a thermally insulated compartment and a heat pump (mechanical, electronic or chemical) that transfers heat from its inside to its external environment so that its inside is cooled to a temperature below the room ...
An absorption refrigerator is a refrigerator that uses a heat source to provide the energy needed to drive the cooling process. Solar energy, burning a fossil fuel, waste heat from factories, and district heating systems are examples of convenient heat sources that can be used. An absorption refrigerator uses two coolants: the first coolant ...
The coefficient of performance or COP (sometimes CP or CoP) of a heat pump, refrigerator or air conditioning system is a ratio of useful heating or cooling provided to work (energy) required. [1][2] Higher COPs equate to higher efficiency, lower energy (power) consumption and thus lower operating costs. The COP is used in thermodynamics.
Vapour-compression refrigeration or vapor-compression refrigeration system (VCRS), [1] in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely used method for air conditioning of buildings and automobiles. It is also used in domestic and commercial refrigerators, large-scale warehouses ...
Of course, sometimes a lack of energy can be a symptom of an undiagnosed medical condition. Anemia is one such condition and is related to an iron deficiency that makes it harder for the body to ...
A whirlpool is a body of rotating water produced by opposing currents or a current running into an obstacle. [ 1 ][clarification needed] Small whirlpools form when a bath or a sink is draining. More powerful ones formed in seas or oceans may be called maelstroms (/ ˈmeɪlstrɒm, - rəm / MAYL-strom, -strəm).
Refrigeration. Refrigeration is any of various types of cooling of a space, substance, or system to lower and/or maintain its temperature below the ambient one (while the removed heat is ejected to a place of higher temperature). [1][2] Refrigeration is an artificial, or human-made, cooling method. [1][2] Refrigeration refers to the process by ...
James Harrison (engineer) James Harrison (17 April 1816 – 3 September 1893) was a Scottish Australian newspaper printer, journalist, politician, and pioneer in the field of mechanical refrigeration. [ 1 ] Harrison founded the Geelong Advertiser newspaper and was a member of the Victorian Legislative Council and Victorian Legislative Assembly.