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Investigation of Human Thermal Comfort Under Highly Transient Conditions for Automotive Applications—Part 1: Experimental Design and Human Subject Testing Implementation 汽车应用中高瞬态条件下人体热舒适性的研究——第1部分:实验设计和人体试验实施
本文致力于在高瞬态条件下建立有效预测动态全身和局部热舒适的模型的实验研究。随后采取了两种方法。第一步是利用测试车辆在瞬态和非均匀条件下收集环境数据。使用环境室模拟了16种典型的冬季和夏季条件,这些条件完全涵盖了车辆舒适性评估所需的热条件范围。一辆测试车被安装在仪器上,通过一个年开发的测量装置测量20个地点的空气温度、全球辐射温度、空气流速和相对湿度- 这房子叫斯蒂克曼。还开发了一个实时环境控制系统,为瞬态条件提供所需的气流速度和送风温度。将环境数据输入瞬态体温调节模型,以计算人体对环境的生理反应,如全身和局部皮肤温度、热通量、核心温度、出汗率等。其次,进行人体受试者测试,以收集相同条件下的主观热舒适反应。最后,结合生理和热感觉数据建立热舒适模型。该型号扩展了快速取暖的应用范围- 上升或冷却瞬态到稳定状态,模型的范围扩大到包括一系列初始条件,而不是局限于标准初始条件。与汽车行业开发的内部舒适性工程(ICE)软件相结合,该车辆建模软件允许设计师在“虚拟旅行”中使用虚拟样机进行测试,并确定气候控制系统在新车设计阶段的工作情况。它将缩短设计周期,并消除大量人体受试者在真实车辆原型中评估热舒适满意度的需要。 单位:SICitation:Symposium,ASHRAE交易,第109卷,pt。堪萨斯城,2003年
This paper focuses on the experimental research of developing models to effectively predict the dynamic whole body and local thermal comfort under highly transient conditions. Two approaches were taken subsequently. The first step was to collect environmental data with a testing vehicle under transient and non-uniform conditions. An environmental chamber was used to simulate 16 typical winter and summer conditions, which fully covered the range of thermal conditions necessary for comfort evaluations in a vehicle. A testing vehicle was instrumented to measure air temperature, globe radiant temperature, air velocity, and relative humidity at 20 locations by a measurement device developed in-house called StickMan. A real-time environmental control system was also developed to provide the desired airflow rate and supply air temperature for the transient conditions. The environmental data were input into a transient thermoregulation model to calculate people’s physiological responses to the environment, such as whole body and local skin temperatures, heat fluxes, core temperature, sweat rate, and so on. Secondly, human subject testing was performed to collect subjective thermal comfort responses under the same conditions. Finally, the physiological and thermal sensation data were combined to develop the thermal comfort model. This model expands the range of applications from fast warm-up or cool-down transients to steady-sate conditions, and the scope of the model was expanded to include a range of initial conditions rather than being limited to standard initial conditions. Coupled with the Interior Comfort Engineering (ICE) software developed by the automotive industry, this vehicle modeling software allows designers to implement tests with a virtual prototype on a “virtual trip” and determine how well the climate control system is going to work during the design phase of a new automobile. It will reduce the design cycle and eliminate the need for a large number of human subjects to evaluate thermal comfort satisfaction in real vehicle prototypes.Units: SI
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