Interroom radiative couplings through windows and large openings in buildings: Proposal of a simplified model

TL;DR

This paper introduces a simplified model for indoor short wave radiation couplings through windows and large openings, enabling better multi-zone thermal simulations in buildings.

Contribution

It proposes a new simplified model using an indoor exchange matrix, integrated into CODYRUN, to quantify radiative exchanges between building zones.

Findings

Model accurately predicts radiative couplings in real-scale tropical building

Integrated model improves multi-zone thermal simulation accuracy

Validated against experimental measurements

Abstract

A simplified model of indoor short wave radiation couplings adapted to multi-zone simulations is proposed, thanks to a simplifying hypothesis and to the introduction of an indoor short wave exchange matrix. The specific properties of this matrix appear useful to quantify the thermal radiation exchanges between the zones separated by windows or large openings. Integrated in CODYRUN software, this module is detailed and compared to experimental measurements carried out on a real scale tropical building.