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Experimental Validation Of A Model For Naturally Ventilated Double-Skin Facades, Alessandro Dama, Matteo Dopudi, Olena Kalyanova Larsen
Experimental Validation Of A Model For Naturally Ventilated Double-Skin Facades, Alessandro Dama, Matteo Dopudi, Olena Kalyanova Larsen
International Building Physics Conference 2018
The steady state thermal model discussed in this paper is devoted to predict the temperatures and heat fluxes through a naturally ventilated DSF, having solar radiation and environmental temperatures as inputs. It is coupled with a fluid-dynamic model, based on a pressure loop, which takes into account both buoyancy and wind pressure at the openings. The model has been validated against experimental data, basing on the prediction of the internal surface temperature of the DSF. Results show acceptable accuracy in the prediction of the heat flux towards the inside, even though they reveal a slight heat flux overestimation associated with …
Thermal Performance Of Novel Natural Ventilation Apertures In A High- Performance Single-Family House, Martha Bohm
Thermal Performance Of Novel Natural Ventilation Apertures In A High- Performance Single-Family House, Martha Bohm
International Building Physics Conference 2018
Natural ventilation provides opportunities to reduce residential cooling load in summer, but increasing the operability of a façade potentially increases infiltration, which is already a source of significant winter heat load. Solving both of these simultaneously is challenging. The test building for this study was a prototype house containing a novel ventilator detail which allows for porosity for summer ventilation and a tight, insulated seal in winter. We aimed to determine whether the prototype had low enough infiltration and thermal bridging to be worthy of further laboratory testing and subsequent deployment in more buildings. The test home was blower door …