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  2. Cryocooler - Wikipedia

    en.wikipedia.org/wiki/Cryocooler

    The advantage is that the cycle frequencies of the compressor and the displacer are uncoupled so that the compressor can run at power-line frequency (50 or 60 Hz) while the cycle of the cold head is 1 Hz. In this way the swept volume of the compressor can be 50 or 60 times smaller than of the cooler.

  3. 7 top-rated ice packs for coolers, lunch boxes and more

    www.aol.com/news/7-top-rated-ice-packs-180626664...

    Best small ice pack: Cooler Shock Reusable Ice Packs Related: Hard coolers are more durable and better at retaining temperature, while soft coolers are lightweight and portable, according to experts.

  4. Ice pack - Wikipedia

    en.wikipedia.org/wiki/Ice_pack

    They can be used as a normal reusable ice pack by storing in a freezer, but they can also be heated in water or a microwave oven to reach the desired temperature. The first hot and cold pack was introduced in 1948 with the name Hot-R-Cold-Pak and could be chilled in a refrigerator or heated in hot water. [3]

  5. Pulse tube refrigerator - Wikipedia

    en.wikipedia.org/wiki/Pulse_tube_refrigerator

    Therefore, the compressor is uncoupled from the cooler. A system of valves (usually a rotating valve) alternately connects the high-pressure and the low-pressure side of the compressor to the hot end of the regenerator. As the high-temperature part of this type of PTR is the same as of GM-coolers, this type of PTR is called a GM-type PTR.

  6. Cooler - Wikipedia

    en.wikipedia.org/wiki/Cooler

    Portable Ice Chest, U.S. Patent # 2,663,167 (1953) A cooler, portable ice chest, ice box, cool box, [1] chilly bin (in New Zealand), or esky is an insulated box used to keep food or drink cool. Ice cubes are most commonly placed in it to help the contents inside stay cool.

  7. Vortex tube - Wikipedia

    en.wikipedia.org/wiki/Vortex_tube

    With no moving parts, no electricity, and no refrigerant, a vortex tube can produce refrigeration up to 1,800 W (6,000 BTU/h) using 100 standard cubic feet per minute (2.832 m 3 /min) of filtered compressed air at 100 psi (6.9 bar). A control valve in the hot air exhaust adjusts temperatures, flows and refrigeration over a wide range.

  8. Fan (machine) - Wikipedia

    en.wikipedia.org/wiki/Fan_(machine)

    Axial flow fans are applied in air conditioning and industrial process applications. Standard axial flow fans have diameters of 300–400 mm or 1,800–2,000 mm and work under pressures up to 800 Pa. Special types of fans are used as low-pressure compressor stages in aircraft engines. Examples of axial fans are:

  9. Here's Why American Cheese Can't Legally Be Called Cheese - AOL

    www.aol.com/heres-why-american-cheese-cant...

    A fixture at any fast food restaurant or backyard barbecue is American cheese. These orange, plastic-wrapped slices are unparalleled in terms of meltability. For many, when it comes to making a ...

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