Journal
ENERGY AND BUILDINGS
Volume 179, Issue -, Pages 133-143Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.enbuild.2018.09.016
Keywords
Thermal asymmetry; Air velocity; Draught; Thermal comfort; Gender
Funding
- European Union
- European Social Fund
- Higher Education Institutional Excellence Programme of the Ministry of Human Capacities in Hungary
- [EFOP-3.6.1-16-2016-00022]
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Low temperature radiant heating systems are widely used in buildings being advantageous both from energy use and thermal comfort point of views. However, attention should be paid to asymmetric radiation especially in the case of wall heating. The aim of our research was to analyse the perception of thermal asymmetry in combination with different air velocities. A series of measurements were carried out in controlled environment involving 20 subjects (10 female, 10 male). It was shown that the thermal asymmetry is perceived at low air velocities, but increasing the air velocity to 0.1 m/s, 0.15 m/s or 0.2 m/s the perception of air movement overwrite the perception of thermal asymmetry. The heat removed by convection by the same air flow and air jet velocity was different for women and men group. The higher decrease of the skin temperature in case of women (around 2 K) leads to thermal sensation votes under -0.5 (even though the air and mean radiant temperature were 24 degrees C). The responses of women and men group regarding draught perception were different as well. (C) 2018 Elsevier B.V. All rights reserved.
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