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The influence of radiation intensity and wavelength on thermal perception

机译：辐射强度与波长对热感知的影响

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摘要

Thermal radiation is considered a fundamental factor of human thermal perception, however the effect of specific radiation spectra has not yet been explored comprehensively. This study investigates the influence of different radiation types, short-wave infrared A and long-wave infrared C radiation, on thermal sensation and thermal comfort. 29 participants were exposed to these two radiation types at two irradiance levels, 100 W/m(2) and 200 W/m(2), and at two air temperatures, 16 degrees C and 22 degrees C. The results confirm the well established observation that additional irradiation induces a warmer thermal sensation. For an otherwise cold environment, a certain level of irradiation did also improve thermal comfort. When it comes to moderate thermal environments, we found that comparable amounts of infrared C irradiation are perceived substantially warmer than their infrared A counterparts. This significant outcome can potentially be explained by the radiative properties of human skin, which greatly depend on the irradiation spectrum. Current thermal perception models do not fully account for such differences. Thereby our findings contribute to a better understanding of thermal perception in environments as buildings or outdoors.
机译：热辐射被认为是人类热感知的基本因素，但是尚未全面探讨特定辐射谱的效果。本研究研究了不同辐射类型，短波红外A和长波红外C辐射的影响，对热敏和热舒适度。将29名参与者暴露于这两个辐射类型，在两种辐照度水平，100W / m（2）和200 w / m（2），并且在两个空气温度下，16℃和22摄氏度。结果证实了成熟观察到额外的照射引起温暖的热敏感。对于其他含冷的环境，一定程度的辐照也提高了热舒适度。当涉及到适度的热环境时，我们发现相当的红外线C照射量被认为比其红外的对应物更加温暖。可以通过人体皮肤的辐射性能来解释这种显着结果，这大大取决于照射光谱。目前的热敏感知模型不完全占这些差异。因此，我们的研究结果有助于更好地理解环境中的热感知作为建筑物或室外。

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