Sigma Thermal Waste Heat Recovery Systems

Any exhaust gas stream with temperatures above 450°F has the potential for significant waste heat recovery. Turbine exhaust, engine exhaust, and exhaust from furnaces, ovens, thermal oxidizers, and process heaters are all common examples. Once a viable source of waste heat has been identified, a consumer of the available waste heat must also be identified. Typical waste heat consumers are:

• Electricity production using an Organic Rankine Cycle generator (ORC).
• Preheating of incoming combustion air for combustion systems on the waste heat source.
• Plant process heating like heat exchangers, tank heating, or reactor vessels.
• Building heat for HVAC purposes.