A unique process amp; system for raising the humdity level/increase presence of water vapor in combustion air entering a fossil fuel fired boiler, using waste heat

摘要

A Centrifugal blower is allowed to draw-in warm humid air, from the top of a Cooling Tower; warm humid air which is normally allowed to dissipate into the atmosphere. It is also ensured that that there is no physical contact between the proposed "ambient air humidity raising process and system" and the forced draft combustion air fan connected to the fossil fuel boiler. A Centrifugal blower is allowed to draw-in warm humid air, from an insulated chamber. Atmospheric air and warm Cooling Tower blow-down water / warm sea water is sprayed directly into the flow of atmospheric air, ensuring direct and intimate contact between warm water and atmospheric air. Waste heat in the form of latent heat is recovered which can be used to generate pure water from seawater / brackish water. Moisture laden combustion air also ensures better trapping of Suspended Particulate Matters and Oxides of Sulphur present in hot and dirty flue gas.