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Simplified estimation of energy recovery efficiency in waste incineration using fixed heat-loss coefficients

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  • Bae, Jisu
  • Lee, Taewoo
  • Han, Tae Uk

Abstract

Energy recovery efficiency (ERE) is a key indicator for evaluating energy utilization in waste incineration facilities within the framework of the circular economy. Accurate calculation of the lower heating value (LHV) of waste—an essential parameter in ERE—is therefore critical. In Korea, LHV calculations for industrial waste rely on periodic on-site measurements of non-instrument metrics (NIMs). This study examined the feasibility of simplifying industrial waste LHV calculations by applying fixed coefficients to selected NIMs. To this end, seven NIMs were evaluated in terms of their contributions to heat loss, and coefficients of variation. The impacts of fixed coefficients on heat loss components, LHV, and ERE were also quantitatively assessed. The results showed that exhaust gas heat accounted for a substantial share of heat loss, and applying fixed coefficients to exhaust gas O2 concentration and water content caused larger variations of LHV and ERE, limiting their applicability. In contrast, radiant heat loss and incineration residue heat loss contributed minimally to total heat loss (1.05–1.51%). Applying fixed coefficients for these NIMs resulted in negligible changes in ERE, indicating strong potential for simplification.

Suggested Citation

  • Bae, Jisu & Lee, Taewoo & Han, Tae Uk, 2026. "Simplified estimation of energy recovery efficiency in waste incineration using fixed heat-loss coefficients," Energy, Elsevier, vol. 360(C).
    • Handle: RePEc:eee:energy:v:360:y:2026:i:c:s0360544226016154
    DOI: 10.1016/j.energy.2026.141509
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