![]() This can save an immense amount of energy in the next century of building. Thermally active surfaces utilize low-supply temperature heating and high-supply temperature cooling to achieve human comfort. Radiant transfer Convective transfer 190 Btu/h 110 Btu/h 47.5 % systems target radiant transfer 100 Btu/h 27.5% 27% 400 Btu/h THERMALLY ACTIVE SURFACES Exhalation and other processes TYPICAL HVAC systems target convective transfer Achieve greater human comfort with low air temperature heating and high air temperature cooling. Buildings based on this logic will significantly amend current patterns of energy consumption, and human comfort. The human body uses radiant transfer to exchange most of its thermal energy. In this century, building science and systems will follow how the body actually functions. Rather, they share the same thermo-dynamical system. Thermally active surfaces in buildings are not metaphors for the body and do not mimic a natural system. This alters energy consumption and amends human comfort. Thermally active surfaces in buildings follow this logic, literally. ![]() Its thermal system is decoupled from its ventilation system. The heart circulates heat through the blood back and forth between the core of the body to its skin, a thermally active surface. Heat energy is transferred in and around a body through the hydronic circulatory system. water air The human body is a hydronic, thermally active surface system. Thermally active surfaces are built around this basic principle. Water can capture and channel far more energy per unit volume than air. ![]() Energy density is directly related to the density of a material. Thermally Active Surfaces in Architecture Why do we heat and cool buildings with air? How did a thermodynamically and physiologically irrational medium of heat transfer-air-become the dominant method of heating and cooling buildings? Water is 832 times denser than air. ![]()
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