How does a refrigerator cool (refrigerate/chill)?

How can a refrigerator be cool in spite of higher temperatures on the outside? (How is it possible that a fridge is cool while there are higher temperatures outside?/with higher temperatures being outside/prevailing) How does the refrigerator convey (transport) heat (warmth) to the outside (exterior)?

A refrigerator works (functions) like a heat (warmth) pump taking (extracting, withdrawing) heat (warmth) from the cooling chamber (compartment)(cold store (room)). This is made possible by a fluid (liquid), hitherto (till(up to) now, so(thus) far) mostly freon, a so-called CFC (chloro fluoro carbon) [which is being] evaporated (vapo(u)rized) and (re)condensed alternately.

The heat (warmth) in the refrigerator evaporates (vapo(u)riz/(s)es) liquid (fluid, molten, melted) freon running in a tube (conduit, conduit pipe, line, pipe, piping, main) in the interior of the device (unit, appliance). For evaporation energy is needed (Evaporation requires energy/This evaporation process requires energy) [which is] taken from the chamber (room) supposed to cool down (to be cooled down) and that thereby turns icy (frosty, cold, chilly, frigid, glacial). The gaseous freon whose free gas molecules have absorbed the heat (warmth) energy, passes into (reaches) a compressor which (that) (in turn) condenses and liquefies it again. In this condension process (During this process of condension) the absorbed energy is in turn released (becomes free) as heat (warmth). As (Since) its temperature is higher than that of the surrounding kitchen room (air), it can be dispensed (radiated, emitted, released, set free) to the outside via the devious cooling coils.

The liquid and cooled down freon runs furtheron (continues to run) at (under) high pressure through the condensator till (until) it reaches a valve (an outlet, vent, safety-valve) reducing the pressure. Afterwards (After that) the fluid (liquid) freon reaches (passes into) once again the evaporator (vapo(u)riz/(s)er) and the game starts all over (the circle begins again).

Pumping the freon through the system as well as the condension (compression) under high pressure requires (costs) energy. The electrical energy being (that is) put into the refrigerator, is again set free as heat (warmth) in the kitchen.



www.compris.com  | Language Material  | Contact/Map  | About Compris Text Technologies GmbH