Economizers and Recuperators

Economizers and recuperators are high-performance heat recovery systems used in industrial processes to improve energy efficiency by recovering waste heat from flue gases and exhaust streams.

Economizers are typically used to preheat feedwater or process fluids, while recuperators increase system efficiency by preheating combustion air or process air.

As a result, fuel consumption is reduced, emissions are improved, and operating costs are lowered.

Technical Specifications

  • These systems are designed to achieve maximum heat recovery from high-temperature flue gases.
  • Optimized heat transfer surface area, low gas-side pressure drop, and controlled temperature reduction ensure high efficiency.
  • In economizers, fluid preheating is achieved, while in recuperators, air-to-air or gas-to-air heat exchange is performed.
  • Bypass systems, condensation control, and stable operating characteristics ensure safe and continuous operation.
  • Properly designed systems can achieve efficiency improvements of up to 5–10%.

Design & Material

  • These systems are custom-designed based on flue gas temperature, flow rate, fuel type, dew point, and targeted energy recovery rate.
  • High-temperature resistance and corrosion protection are ensured through the use of carbon steel, stainless steel, and finned tube technologies.
  • Low-temperature corrosion, soot accumulation, and pressure drop are critical parameters that are optimized through engineering calculations.
  • Manufactured in compliance with EN, ASME, and relevant international standards, these systems provide high energy savings with a short payback period.

Application Areas

Documents

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