Thermal sensation model for driver in a passenger car with changing solar radiation

Zhou Xiaojie; Lai Dayi; Chen Qingyan

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Thermal sensation model for driver in a passenger car with changing solar radiation

机译：变化太阳辐射乘用车驾驶员热敏感觉模型

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Thermal sensation in cars is different from that in buildings. Transient, asymmetric solar radiation and transient, non-uniform air temperature are the main causes of the difference. This investigation conducted human subject tests with 24 subjects, 62 trials under three outdoor driving conditions. These three driving conditions refers to 1) highly transient environments during the cool-down phases in summer, 2) highly transient environments during the warm-up in winter, and 3) sudden changes in solar radiation in shoulder season. Then the data were used to evaluate the performance of four thermal sensation models: the predicted mean vote model, the dynamic thermal sensation model, a model from the University of California, Berkeley, and a transient outdoor thermal sensation model. The results of the evaluation indicated that none of the models could accurately predict thermal sensation in a car. The sudden change in solar radiation experienced by the driver was identified as an important factor in this discrepancy. Therefore, this study proposed a new thermal sensation model that incorporates the change in the driver's thermal load caused by a sudden change in solar radiation as a predictor. This investigation verified the validity of the new model in a transient and non-uniform vehicular thermal environment.

机译：汽车的热敏感觉与建筑物中的热敏感觉不同。瞬态，不对称的太阳辐射和瞬态，不均匀的空气温度是差异的主要原因。本研究通过24项受试者进行人类对象测试，在三个户外驾驶条件下进行62项试验。这三种驾驶条件是指在夏季的冷却阶段期间的高瞬态环境，2）在冬季预热过程中的高瞬态环境，3）肩部辐射的突然变化。然后，数据用于评估四种热敏模型的性能：预测的平均投票模型，动态热敏模型，加州大学，伯克利大学和瞬态室外热敏模型。评估结果表明，这些模型都无法准确地预测汽车中的热敏。驾驶员所经历的太阳辐射的突然变化被鉴定为这种差异的重要因素。因此，该研究提出了一种新的热敏感觉模型，该模型包括由于太阳辐射突然变化而引起的驾驶员热负荷的变化作为预测因子。本研究验证了瞬态和非均匀的车载热环境中新模型的有效性。

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来源
《Building and Environment》 |2020年第10期|107219.1-107219.16|共16页
作者
Zhou Xiaojie; Lai Dayi; Chen Qingyan;
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作者单位

Tianjin Univ Sch Environm Sci & Engn Tianjin Key Lab Indoor Air Environm Qual Control Tianjin Peoples R China;

Tianjin Univ Sch Environm Sci & Engn Tianjin Key Lab Indoor Air Environm Qual Control Tianjin Peoples R China|Shanghai Jiao Tong Univ Sch Design Dept Architecture Shanghai 200240 Peoples R China;

Purdue Univ Sch Mech Engn W Lafayette IN 47907 USA;

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原文格式 PDF
正文语种 eng
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关键词
Vehicle thermal comfort; Model development; Solar radiation; Non-uniform; Transient;

机译：车辆热舒适;模型开发;太阳辐射;不均匀;短暂的;

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2. A simulation framework for predicting occupant thermal sensation in perimeter zones of buildings considering direct solar radiation and ankle draft [J] . Zhang Shengbo, Fine Jamie P., Touchie Marianne F., Building and Environment . 2020,第Octa期

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3. Vegetation and soil - related parameters for computing solar radiation exchanges within green roofs: Are the available values adequate for an easy modeling of their thermal behavior? [J] . Peri Giorgia, Rizzo Gianfranco, Scaccianoce Gianluca, Energy and Buildings . 2016,第octa期

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4. ADAPTING SEGMENTAL MODELS OF HUMAN THERMOREGULATION AND THERMAL SENSATION FOR USE IN A THERMAL SIMULATION OF A VEHICLE PASSENGER COMPARTMENT [C] . Curran Allen, Hepokoski Mark, Curlee John, FISITA World Automotive Congress . 2006

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5. Field and modeling investigations into the drivers and implications of beach and saltmarsh shoreline erosion: Examining the impacts of geomorphic change on coastal carbon budgets and the role of sealevel anomalies in facilitating beach erosion [D] . Theuerkauf, Ethan John 2016

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6. Mathematical Modeling and Numerical Analysis of Thermal Distribution in Arch Dams considering Solar Radiation Effect [O] . H. Mirzabozorg, M. A. Hariri-Ardebili, M. Shirkhan, -1

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7. This article presents a new numerical model describing the behaviour of a thermally thick wood sample exposed to high solar heat flux (above 1 MW/m2). A preliminary study based on dimensionless numbers is used to classify the problem and support model building assumptions. Then, a model based on mass, momentum and energy balance equations is proposed. These equations are coupled with liquid-vapour drying model and pseudo species biomass degradation model. By comparing to a former experimental study, preliminary results have shown that these equations are not enough to accurately predict biomass behaviour under high solar heat flux. Indeed, a char layer acting as radiative shield forms on the sample exposed surface. In addition to this classical set of equations, it is mandatory to take into account radiation penetration into the medium. Furthermore, as biomass contains water, medium deformation consecutively to char steam gasification must also be implemented. Finally, with the addition of these two strategies, the model is able to properly capture the degradation of biomass when exposed to high radiative heat flux over a range of sample initial moisture content. Additional insights of biomass behaviour under high solar heat flux were also derived. Drying, pyrolysis and gasification fronts are present at the same time inside of the sample. The coexistence of these three thermochemical fronts leads to char gasification by the steam produced from drying of the sample, which it is the main phenomenon behind medium ablation. [O] . Pozzobon, Victor, Salvador, Sylvain, Bézian, Jean Jacques 2018

机译：本文提供了一个新的数值模型，该模型描述了暴露于高太阳热通量（高于1 / MW / m2）的热厚木材样品的行为。基于无量纲数的初步研究用于对问题进行分类并支持模型构建假设。然后，提出了一种基于质量，动量和能量平衡方程的模型。这些方程式与液体蒸汽干燥模型和假物种生物质降解模型耦合。通过与以前的实验研究进行比较，初步结果表明，这些方程不足以准确预测高太阳热通量下的生物量行为。的确，在样品暴露的表面上形成了充当辐射屏蔽层的炭层。除了这套经典的方程式之外，还必须考虑到辐射向介质的渗透。此外，由于生物质中含有水，因此还必须在炭蒸气汽化后进行连续的介质变形。最后，通过添加这两种策略，该模型能够在一定范围的样品初始水分含量下暴露于高辐射热通量的情况下，正确捕获生物质的降解。还得出了在高太阳热通量下生物量行为的其他见解。样品内部同时存在干燥，热解和气化前沿。这三个热化学前沿的共存会导致样品干燥产生的蒸汽产生焦炭气化，这是介质烧蚀的主要现象。
8. Effectiveness of solar radiation shields for thermal control of space vehicles subjected to large changes in solar energy [R] . Arvesen, J. C. 1963

机译：太阳辐射防护罩对太阳能发生大变化的航天器热控制的有效性

Thermal sensation model for driver in a passenger car with changing solar radiation

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