Publication

Localized radiant heating and cooling impact on thermal comfort and energy use - Experimental climatic chamber study

2024

Abstract

This study explores the efficacy of localized radiant heating floors on comfort and energy use in controlled environments. A series of experiments were conducted in a climatic chamber with a thermal manikin to test various layouts of heated floor surfaces. The findings indicate that while global com-fort, as measured by the predicted mean vote (PMV), requires further fine-tuning, localized radiant heating can maintain a low risk of local discomfort. However, methodological challenges limited a clear understanding of the specific impact on energy use. These results highlight the potential and complexities of implementing targeted radiant heating solutions for sustainable and comfortable indoor environments.

Official source

https://infoscience.epfl.ch/entities/publication/40bdc944-cb07-4956-bf14-abc5c5598c0e

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2024

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/40bdc944-cb07-4956-bf14-abc5c5598c0e

About this result

Related concepts (26)

Thermal comfort

Thermal comfort is the condition of mind that expresses satisfaction with the thermal environment and is assessed by subjective evaluation (ANSI/ASHRAE Standard 55). The human body can be viewed as a heat engine where food is the input energy. The human body will release excess heat into the environment, so the body can continue to operate. The heat transfer is proportional to temperature difference. In cold environments, the body loses more heat to the environment and in hot environments the body does not release enough heat.

Radiant heating and cooling

Radiant heating and cooling is a category of HVAC technologies that exchange heat by both convection and radiation with the environments they are designed to heat or cool. There are many subcategories of radiant heating and cooling, including: "radiant ceiling panels", "embedded surface systems", "thermally active building systems", and infrared heaters.

Underfloor heating

Underfloor heating and cooling is a form of central heating and cooling that achieves indoor climate control for thermal comfort using hydronic or electrical heating elements embedded in a floor. Heating is achieved by conduction, radiation and convection. Use of underfloor heating dates back to the Neoglacial and Neolithic periods. Underfloor heating has a long history back into the Neoglacial and Neolithic periods.