Feasibility Assessment of Heat Flux Sensors for Human-in-the-Loop HVAC Operations
Feasibility Assessment of Heat Flux Sensors for Human-in-the-Loop HVAC Operations
复制标题
热通量传感器在 HVAC 操作环路中的可行性评估
DOI：
10.1061/9780784482445.032
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Diller, Thomas E.
中科院分区：
文献类型：
--
作者：
Jung, Wooyoung;Chan, Matthew;Jazizadeh, Farrokh;Diller, Thomas E.
本研究旨在评估热通量传感器的适用性，作为环境中环境热舒适表示的代理，用于人在环（HITL）加热，通风和空调（HVAC）操作。在考虑个性化热舒适推断时，预测平均投票（PMV）模型通常不适用，使用环境条件特征的数据驱动方法显示出中等精度（60-75%）。因此，近年来，利用生理传感来提高性能受到了人们的关注。皮肤温度已被广泛用作人体散热调节的替代指标，可用于个性化热舒适推断。然而，考虑到通过皮肤的散热调节是环境中的一种适应机制，在本研究中，我们研究了热通量传感器可能是一种有效的替代方法，可以实现从人体向控制系统的反馈。为此，我们设计并开展了10名人体受试者的实验研究，在瞬态热条件下（20 - 30°C），在腕部佩戴薄膜热流传感器，研究人体热感知与相应热流之间的关系。通过本实验，分析了热流密度、空气温度、相对湿度和热偏好之间的相关性。热流密度与热偏好之间的高相关系数（平均0.90）表明，热流密度传感器在HITL HVAC操作中具有很高的潜力，可作为一种有效的传感方式。
This study seeks to evaluate the applicability of heat flux sensors, as a proxy for contextual thermal comfort representation in an environment, for the human-in-the-loop (HITL) heating, ventilation, and air conditioning (HVAC) operations. In accounting for personalized thermal comfort inference, the predicted mean vote (PMV) model is not often applicable and data-driven methods using features from ambient environmental conditions have demonstrated moderate accuracies (60–75%). Therefore, the use of physiological sensing for improved performance has gained attention in recent years. Skin temperature has been widely used as an alternative indicator of human heat dissipation adjustment, which could be leveraged for personalized thermal comfort inference. However, considering the heat dissipation adjustments through skin as an adaptation mechanism in an environment, in this study, we have investigated the hypothesis that heat flux sensors could be an effective alternative for enabling feedback from human body to the control system. To this end, we designed and conducted an experimental study on 10 human subjects, wearing a thin-film heat flux sensor on their wrist, under transient thermal conditions (from 20 to 30°C) to investigate the association between human thermal perception and the corresponding heat flux. Through this experiment, the correlations between heat flux, air temperature, relative humidity, and thermal preferences were analyzed. The high correlation factors (0.90 on average) between heat flux and thermal preferences suggest that heat flux sensors have a high potential to be used as an effective sensing modality in the HITL HVAC operation.
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影响因子：
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