THE MeeFog™ CONCEPT–ELEGANT IDEA–DRAMATIC RESULTS

Direct turbine inlet fogging (cooling) is a method of cooling where demineralized water is converted into a fog of very small water droplets by means of special atomizing nozzles operating at 2000 psi (138 bar) pressure. The fog provides evaporative cooling when it evaporates in the air inlet duct of the gas turbine. This technique allows 100% evaporation effectiveness so it's possible to attain 100 percent relative humidity at the gas turbine inlet. The inlet air is, therefore, cooled to the ambient wet bulb temperature.

High-pressure inlet fogging can also be used to create a compressor intercooling effect by allowing liquid fog droplets to enter the compressor, where they evaporate when the air is heated by compression. This technique is called overspray fogging or wet compression. Injecting liquid fog into a gas turbine compressor at a rate of 2% of the air mass flow can provide a power boost of as much as 10%. Mee Industries has made many installations of systems that are used for both evaporative cooling and overspray fogging. The combined power boost can be as high as 25%.

The chart below shows typical power recovery expected from evaporative cooling only for respective turbines.