Environmental index for evaluating thermal sensations in a mist spraying environment
Environmental index for evaluating thermal sensations in a mist spraying environment
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DOI：
10.1016/j.buildenv.2019.106219
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发表时间：
2019-08
影响因子：
7.4
通讯作者：
Wonseok Oh;R. Ooka;J. Nakano;H. Kikumoto;O. Ogawa
中科院分区：
文献类型：
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作者：
Wonseok Oh;R. Ooka;J. Nakano;H. Kikumoto;O. Ogawa
本研究评估了一种新的指标，该指标可以评估室外和雾化喷雾环境中的热感觉。雾化喷雾系统已被广泛用于缓解炎热天气中的热不适。然而，用环境指数来评价雾化喷雾环境的热感觉的研究相对较少。因此，本研究进行了雾化喷雾环境下的环境因素、生理反应和调查结果的实验研究。在第一个实验中，进行了主观评估和环境因素测量。在实验分析的基础上，对常规指标进行了检验，以确定其在薄雾环境中的可接受性。在第二个实验中，根据测量的环境条件，使用Gagge的双节点模型来估计受试者的热状态。通过与被测对象的生理反应进行比较，验证了预测模型的有效性。结果表明，常规的SET*、PET、WBGT和UTCI指数不能完全反映雾化环境下人体的热感和舒适性，而两节点模型对皮肤温度的预测结果较为准确。最后，通过比较预测的人体热状态和受试者的热感觉投票(MTSV)，提出了评价室外和雾化环境热感觉的新指标的概念。该指标有望仅利用测量的环境因子来估计雾化喷雾环境内外的热感觉。
The present study assessed a new index that can evaluate thermal sensations in outdoor and mist spraying environments. Mist spraying systems have been widely used to relieve thermal discomfort in hot weather. However, relatively few studies have investigated the environmental indices to evaluate thermal sensations in mist spraying environments. Therefore, this study carried out experiments to collect data for the environmental factors, physiological responses, and survey results in a mist spraying environment. In the first experiment, subjective assessments and environmental factors measurements were conducted. Based on the experimental analysis, the conventional indices were examined to determine the acceptability in the mist environment. In the second experiment, the thermal state of the subjects was estimated using Gagge's two-node model with the measured environmental conditions. The validity of the prediction model was confirmed by comparison with the measured subject's physiological responses. The results showed that the conventional SET*, PET, WBGT, and UTCI indices could not fully represent the thermal sensation and comfort in the mist spraying environment, while the two-node model showed accurate prediction results for skin temperature. In conclusion, a concept of new index to assess the thermal sensation of the outdoor and mist spraying environment was proposed by comparing the predicted thermal state of the body and the subjects mTSV (modified thermal sensation vote). The proposed index is expected to estimate the thermal sensation inside and outside of the mist spraying environment only using measured environmental factors.