Inlet Fogging of Gas Turbine Engines: Part B — Practical Considerations, Control, and O&M Aspects

Abstract

The severe dependence of gas turbine output on ambient temperature has created the need for inlet cooling technologies. This paper focuses on the practical aspects of direct evaporative cooling by fogging of the inlet air to a gas turbine compressor. This paper covers several of the practical considerations relating to the location of nozzles, water quality and operations and maintenance issues that relate to implementation of such systems. A design and implementation checklist is provided to assist users in ensuring a reliable installation.