How does water vapor cool waste gas incinerators?
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The waste gas incinerators used in our factory use steam to cool down when the temperature becomes too high. But isn’t water vapor already in a gaseous state? Upon absorbing heat, there should be no phase change – is this due to its \"latent heat\" or is it related to heat capacity? Can water vapor be kept heated continuously? Is there a limit temperature or pressure? I hope the experts here can help answer it. Thank you!
As long as the steam temperature is lower than the furnace temperature, cooling is possible; and when water vapor turns into superheated steam, heat is also absorbed.
Yes, although water vapor is in a gaseous state, it can still lower the temperature of substances with higher temperatures. This is the principle behind the use of steam injection in our catalytic regenerators – when the temperature in the regenerator exceeds the specified limit, we inject steam to lower that temperature! !
Cooling – as long as the steam temperature is lower than the furnace temperature
Heat transfer can occur as long as there is a temperature difference; saturated steam can continue to absorb heat and become superheated steam.