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  2. Absorption refrigerator - Wikipedia

    en.wikipedia.org/wiki/Absorption_refrigerator

    Common absorption refrigerators use a refrigerant with a very low boiling point (less than −18 °C (0 °F)) just like compressor refrigerators.Compression refrigerators typically use an HCFC or HFC, while absorption refrigerators typically use ammonia or water and need at least a second fluid able to absorb the coolant, the absorbent, respectively water (for ammonia) or brine (for water).

  3. Vapor-compression refrigeration - Wikipedia

    en.wikipedia.org/wiki/Vapor-compression...

    A representative pressure–volume diagram for a refrigeration cycle. 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.

  4. Refrigerant - Wikipedia

    en.wikipedia.org/wiki/Refrigerant

    Despite their flammability, they are increasingly used in domestic refrigerators and heat pumps. In 2010, about one-third of all household refrigerators and freezers manufactured globally used isobutane or an isobutane/propane blend, and this was expected to increase to 75% by 2020. [61] R-600a: HC(CH 3) 3: Isobutane: 3.3: Widely used: See R ...

  5. Our Picks for the Best Refrigerators from LG, Bosch ... - AOL

    www.aol.com/lifestyle/picks-best-refrigerators...

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  6. Active packaging - Wikipedia

    en.wikipedia.org/wiki/Active_packaging

    In order to preserve long-term food quality, it may be desired to inhibit ethylene synthesis. As such, synthesis inhibitors or scavengers can be used. [11] One of the most common ethylene scavengers is potassium permanganate (KMnO 4), which is typically immobilized on siliga gel or alumina. Other ethylene scavengers include activated carbon or ...

  7. Adsorption refrigeration - Wikipedia

    en.wikipedia.org/wiki/Adsorption_refrigeration

    Adsorption refrigerators are available in the marketplace and are mainly used to produce chilled water from waste heat. Gas adsorption heat pumps are not currently available in the UK, but are just being introduced in Europe as small water or ground source packaged units that provide domestic, low-temperature space heating. [6]

  8. Superabsorbent polymer - Wikipedia

    en.wikipedia.org/wiki/Superabsorbent_polymer

    Other materials are also used to make a superabsorbent polymer, such as polyacrylamide copolymer, ethylene maleic anhydride copolymer, cross-linked carboxymethylcellulose, polyvinyl alcohol copolymers, cross-linked polyethylene oxide, and starch grafted copolymer of polyacrylonitrile to name a few. The latter is one of the oldest SAP forms created.

  9. Smartwatch and fitness tracker bands have elevated levels of ...

    www.aol.com/lifestyle/smartwatch-fitness-tracker...

    Smartwatches are a hot-ticket gift over the holidays, but a new study might have you rethink how you strap the device to your wrist in the future.

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