The use of a recuperator, a special purpose counter-flow energy recovery heat exchanger, is positioned within the supply and exhaust air channels of a gas turbine’s air handling system. Recuperators can nearly double the efficiency of small gas turbines (microturbines), such as the Flex Turbine® and can greatly increase the efficiency of large gas turbines as well.
Combined heat and power (CHP) utilizes waste heat from power generation for beneficial purposes. Most, if not all current power generation systems produce waste heat as a by-product. CHP systems capture and recycle this high-value heat and use it for heating or cooling. This process increases system efficiency and reduces alternative fuels consumption.
Biogas and thermal energy storage are gaining in popularity as the world advances in adopting more renewable and environmentally friendly energy sources. Heat exchangers transfer the heat created by biogas and thermal energy storage systems to technologies that generate power, such as gas turbines. Instead of burning supplementary fuels, gas turbines can efficiently generate power from the heat energy that would otherwise be wasted.
Three applications for heat exchangers that work with a gas turbine cycle to provide clean reliable power.
1. RECUPERATOR – Heat is recovered from the exhaust and used to heat air after the compressor but before it enters the combustor. Recuperators can greatly increase the efficiency of the system by recycling heat and burning less fuel. This can add up to 15 additional points in electrical efficiency.
2. COMBINED HEAT AND POWER – Heat is recovered from the turbine exhaust and put to work
reducing energy costs, further increasing system efficiency.
3. BIOGAS AND EXTERNALLY FIRED GAS TURBINES – Utilizing an external energy source, the heat exchanger can transfer energy to drive the gas turbine generator. These applications are ideal for alternative energy projects and carbon reduction technologies.
HIGH TEMPERATURE HEAT EXCHANGER AND 333KW FLEX ENERGY GAS TURBINE