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The conventional heating load calculation set forth by DIN EN 12831 often results in substantial oversizing, which is unsustainable in light of dynamic regenerative energy systems. This paper introduces a simulation-based approach that bridges the gap between static standards and the variability inherent in both energy demand and renewable energy supply. By integrating building component simulations with whole-building modeling, this research offers comprehensive insight into temperature distributions, thermal comfort, and overall system dynamics. Two practical challenges are addressed: refining underfloor heating (UFH) installation distances for optimized thermal performance, and evaluating minimal insulation strategies for UFH supply pipes in corridors. The results underscore how dynamic methodologies can adjust the boundary conditions specified by DIN EN 12831, ensuring heating systems are sized more closely to actual operational demands. Additionally, the plausibility of very narrow installation spacing and minimal insulation is critically evaluated to balance energy savings with practical feasibility. The findings demonstrate the broad applicability of a dynamic design framework, offering actionable guidance for more efficient, sustainable building heating systems aligned with future energy transitions.

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Dynamic Heating Load Analysis for the Precise Design of Surface Heating Systems

  • 会议论文

  • 发表日期：

    2026年

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  • Dirk Weiß,
  • Katja Tribulowski,
  • Luisa Kotte,
  • Toni Bartel,
  • Jakob Prkno,
  • John Grunewald

摘要

The conventional heating load calculation set forth by DIN EN 12831 often results in substantial oversizing, which is unsustainable in light of dynamic regenerative energy systems. This paper introduces a simulation-based approach that bridges the gap between static standards and the variability inherent in both energy demand and renewable energy supply. By integrating building component simulations with whole-building modeling, this research offers comprehensive insight into temperature distributions, thermal comfort, and overall system dynamics. Two practical challenges are addressed: refining underfloor heating (UFH) installation distances for optimized thermal performance, and evaluating minimal insulation strategies for UFH supply pipes in corridors. The results underscore how dynamic methodologies can adjust the boundary conditions specified by DIN EN 12831, ensuring heating systems are sized more closely to actual operational demands. Additionally, the plausibility of very narrow installation spacing and minimal insulation is critically evaluated to balance energy savings with practical feasibility. The findings demonstrate the broad applicability of a dynamic design framework, offering actionable guidance for more efficient, sustainable building heating systems aligned with future energy transitions.