Evaporative Pad Cooling

For applications where significant power demand and highest electricity prices occur during the warm months, a gas turbine air inlet cooling system is a useful option for increasing output. Inlet air cooling increases output by taking advantage of the gas turbine’s characteristic of higher mass flow rate and, thus, output as the compressor inlet temperature decreases.

Conventional media types of evaporative coolers use a wetted honeycomb-like medium to maximize evaporative surface area and cooling potential. For gas turbines, the medium is typically 12 or more inches thick and covers the entire cross-section of the inlet air duct or filter house. The media and drift eliminator result in a pressure drop in the inlet air duct. Typical values are approximately 80-100 Pascal.

Industrial gas turbines that can be equipped with evaporative pad system as followings;

• 7LM6000
• 7LM2500+/Base/HSPT
• MS6001
• MS9001EA
• Mitsubishi
• Turbomach
• EGT Typhoon
• Siemens GTX