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  2. Kerosene heater - Wikipedia

    en.wikipedia.org/wiki/Kerosene_heater

    However, most kerosene heaters do not require electricity to operate. Most heaters contain a battery-operated or piezo-electric ignitor to light the heater without the need for matches. If the ignitor should fail the heater can still be lit manually. The Japanese non-vented "fan" heater burns kerosene gas and is known as a gasification type heater.

  3. Electric heating - Wikipedia

    en.wikipedia.org/wiki/Electric_heating

    Economically, electric heat can be compared to other sources of home heating by multiplying the local cost per kilowatt hour for electricity by the number of kilowatts the heater uses. E.g.: 1500-watt heater at 12 cents per kilowatt hour 1.5×12=18 cents per hour. [14]

  4. Period 3 element - Wikipedia

    en.wikipedia.org/wiki/Period_3_element

    Argon (symbol Ar) is the third element in group 18, the noble gases. Argon is the third most common gas in the Earth's atmosphere , at 0.93%, making it more common than carbon dioxide . Nearly all of this argon is radiogenic argon-40 derived from the decay of potassium-40 in the Earth's crust.

  5. Noble gas compound - Wikipedia

    en.wikipedia.org/wiki/Noble_gas_compound

    Solid argon-hydrogen clathrate (Ar(H 2) 2) has the same crystal structure as the MgZn 2 Laves phase. It forms at pressures between 4.3 and 220 GPa, though Raman measurements suggest that the H 2 molecules in Ar(H 2) 2 dissociate above 175 GPa. A similar Kr(H 2) 4 solid forms at pressures above 5 GPa. It has a face-centered cubic structure where ...

  6. Thermoacoustic heat engine - Wikipedia

    en.wikipedia.org/wiki/Thermoacoustic_heat_engine

    SoundEnergy developed the THEAC system that turns heat, typically waste heat or solar heat into cooling with no other power source. The device uses argon gas. The device amplifies sound created by the waste heat, converts the resulting pressure back into another heat differential and uses a Stirling cycle to produce the cooling effect. [2]

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