Fojtlín Miloš, Fišer Jan, Pokorný Jan, Povalač Aleš, Urbanec Tomáš, Jícha Miroslav
Department of Thermodynamics and Environmental Engineering, Energy Institute, Faculty of Mechanical Engineering, Brno University of Technology, Czechia.
Department of Thermodynamics and Environmental Engineering, Energy Institute, Faculty of Mechanical Engineering, Brno University of Technology, Czechia.
J Therm Biol. 2017 Dec;70(Pt A):64-68. doi: 10.1016/j.jtherbio.2017.04.002. Epub 2017 Apr 13.
Personal vehicles undergo rapid development in every imaginable way. However, a concept of managing a cabin thermal environment remains unchanged for decades. The only major improvement has been an automatic HVAC controller with one user's input - temperature. In this case, the temperature is often deceiving because of thermally asymmetric and dynamic nature of the cabins. As a result, the effects of convection and radiation on passengers are not captured in detail what also reduces the potential to meet thermal comfort expectations. Advanced methodologies are available to assess the cabin environment in a fine resolution (e.g. ISO 14505:2006), but these are used mostly in laboratory conditions. The novel idea of this work is to integrate equivalent temperature sensors into a vehicular cabin in proximity of an occupant. Spatial distribution of the sensors is expected to provide detailed information about the local environment that can be used for personalised, comfort driven HVAC control. The focus of the work is to compare results given by the implemented system and a Newton type thermal manikin. Three different ambient settings were examined in a climate chamber. Finally, the results were compared and a good match of equivalent temperatures was found.
个人车辆在各个方面都经历了快速发展。然而，几十年来，管理车厢热环境的理念却一成不变。唯一的重大改进是配备了具有单一用户输入（温度）的自动暖通空调控制器。在这种情况下，由于车厢热不对称和动态特性，温度常常具有欺骗性。结果，对流和辐射对乘客的影响没有得到详细捕捉，这也降低了满足热舒适期望的可能性。有先进的方法可用于以高分辨率评估车厢环境（例如ISO 14505:2006），但这些方法大多用于实验室条件。这项工作的新颖之处在于将等效温度传感器集成到靠近乘员的车辆车厢内。传感器的空间分布有望提供有关局部环境的详细信息，可用于个性化的、以舒适为导向的暖通空调控制。这项工作的重点是比较所实施系统和牛顿型热人体模型给出的结果。在气候试验箱中研究了三种不同的环境设置。最后，对结果进行了比较，发现等效温度匹配良好。
