What is The movement of hot air up to cooler air
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Explanation:
The main advantage of air-cyclerefrigeration system is its light weight, while the main disadvantages are low C.O.P. and poorer ground cooling. Vapour Cycle Refrigeration System: The vapour cycle systems has higher COP than air cycle but it is generally heavier.The minimum amount of air neededfor the complete combustion of a fuel is called the stoichiometric ortheoretical air. A combustion process is complete if all the carbon in the fuel burns to CO2, all the hydrogen burns to H2O, and all the sulfur (if any) burns to SO2. ... For example 150% = 1.5 × thetheoretical air.Air is the general name for the mixture of gases that makes up the Earth's atmosphere. This gas is primarily nitrogen (78%), mixed with oxygen (21%), water vapor (variable), argon (0.9%), carbon dioxide (0.04%), and trace gases. Pure air has no discernible scent and no color.Criteria pollutants
Clean, dry air consists primarily of nitrogenand oxygen—78 percent and 21 percent respectively, by volume. The remaining 1 percent is a mixture of other gases, mostly argon (0.9 percent), along with trace (very small) amounts of carbon dioxide, methane, hydrogen, helium, and more.