Effects of local body heating on thermal comfort for audiences in open-air venues in 2022 Winter Olympics
| Autor: | Bin Liu, Yue Deng, Hecheng Yang, Bin Cao |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Air velocity
Environmental Engineering Meteorology Thermal resistance Geography Planning and Development 0211 other engineering and technologies Thermal comfort 02 engineering and technology Building and Construction Energy consumption 010501 environmental sciences Snow 01 natural sciences Outdoor temperature Environmental science 021108 energy 0105 earth and related environmental sciences Civil and Structural Engineering Open air |
| Zdroj: | Building and Environment. 165:106363 |
| ISSN: | 0360-1323 |
| DOI: | 10.1016/j.buildenv.2019.106363 |
| Popis: | The snow events of the 2022 Winter Olympic Games will be held in Chongli, Hebei Province, China, where the outdoor temperature is predicted to be lower than that of recent Winter Olympics hosts. The audiences of snow events watch the competitions in open-air building venue, where it is usually cold and windy. To reduce the negative impact of outdoor severe cold conditions on the viewing feelings, the effectiveness of several body heating measures (cushion, footpad, and gloves) were studied at temperature condition between – 10 °C and – 15 °C in a cryogenic chamber, with an air velocity of 0.9 m/s. Eight male subjects participated in this experiment, whose subjective evaluations and physiological parameters were recorded and analyzed. Additionally, the energy consumption of each heating measure was also monitored. The results show that the heating cushion is the most effective measure in improving the overall thermal evaluation, while the heating gloves has the highest ratio of thermal comfort improvement and energy consumption. The heating footpad is not ideal for either thermal comfort improvement or energy consumption, due to the high thermal resistance of the shoes. |
| Databáze: | OpenAIRE |
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