Radiative heat transfer in indoor air

Lukas Schmitt

doi:10.14279/depositonce-26068

January 1, 2026Open Access

Radiative heat transfer in indoor air

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Key Points

The research aims to investigate the significance of radiative heat transfer between surfaces and indoor air, challenging its common dismissal in building engineering.
Development of a spectral model to analyze radiative heat transfer.
Quantification of heat transfer coefficients for different room conditions.
Implementation of a three-dimensional net-radiation model for simulation.
Radiative heat transfer reached values of 3.04 W/(m²K) in non-reflective and 3.74 W/(m²K) in reflective spaces.
Accounting for radiative heat transfer can modify heating load predictions by up to 30% depending on room and environmental variables.
In large, well-ventilated rooms, the influence of radiative absorption is significant, while in small, dry rooms it remains minimal.

Implication

This randomized trial demonstrates the effect of radiative heat transfer on indoor air heating loads, highlighting its significance in building physics.

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Cite This Study

Lukas Schmitt (2026) studied this question.

synapsesocial.com/papers/6a2cf500faef96ed7f0571c9 https://doi.org/10.14279/depositonce-26068

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Radiative heat transfer in indoor air

Key Points

Implication

Abstract

Discussion

Cite This Study

Radiative heat transfer in indoor air

Key Points

Implication

Abstract

Discussion

Cite This Study

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