Rotor Air Coolers are engineered to meet the stringent demands of the power generation industry, specifically designed to cool hot air and generate steam efficiently. These systems handle the residual hot air produced when cooling the fuel gas turbine. The hot air is then passed through the Rotor Air Cooler, where it is cooled to the proper temperature before being returned to the turbine. The heat extracted from the air stream is repurposed to generate steam, enhancing overall energy efficiency.
Hot air travels through the tube side of the cooler, while steam is generated on the shell side. Cooling can be achieved using a low-pressure (LP) steam generator or a dual-step process involving both intermediate pressure (IP) and low-pressure steam generation. In configurations utilizing two exchangers in series, they can either be independently piped by the customer or bolted together to minimize piping and pressure drop. The shell side is constructed from carbon steel, while the tubes are typically made from SS304 stainless steel or chrome molly. All units are built to ASME Code, Section VIII Div 1 standards, often providing a UB stamp for added assurance.