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Thermal comfort analysis based on PMV/PPD in cabins of manned submersibles

机译：基于PMV / PPD的载人潜水器舱室内热舒适性分析

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In this study, we proposed a PMV-based method to evaluate the variations in thermal characteristics of the cabin of a submersible craft and the comfort levels of the crew during manned deep-sea missions. Based on the characteristics of tasks performed during a submersible deep-sea mission, we modified the criteria used by our model for clothing and activities, and then investigated other human factors found in the cabin as well. To test and verify our method, we used the averages of the environment data (depth, temperature, and humidity) from a Jiaolong mission that included six 7000 m deep-sea dives in the southern Mariana Trench. MATLAB was employed to calculate the PMV index and PPD, and to draw the PMV/PPD dynamic curves. The results showed that the PMV value changed constantly between [-2, +3]. The cabin thermal environment was dynamic and in continuous change, including a short period of a warm state and a long, continuous cold state. Because the submersible cabin lacked an air conditioning system, this paper analyzed the two-state thermal comfort based on regulating the air velocity of the ventilation system. Our detailed findings can be used by the submersible design institutes to evaluate the thermal comfort of oceanauts on manned submersibles, and to coordinate the energy distribution of air conditioning systems for cabins in the future.
机译：在这项研究中，我们提出了一种基于PMV的方法来评估潜水艇机舱热特性的变化以及在有人深海任务中机组人员的舒适度。根据潜水深海任务执行的任务的特征，我们修改了模型用于衣服和活动的标准，然后还调查了机舱中发现的其他人为因素。为了测试和验证我们的方法，我们使用了一次礁龙任务的环境数据（深度，温度和湿度）的平均值，该任务包括在南部的马里亚纳海沟进行了6次7000 m深海潜水。使用MATLAB计算PMV指数和PPD，并绘制PMV / PPD动态曲线。结果表明，PMV值在[-2，+3]之间不断变化。机舱的热环境是动态的，并且是连续变化的，包括短期的温暖状态和长期的持续寒冷状态。由于潜水舱缺少空调系统，本文基于调节通风系统的风速来分析两态热舒适性。我们的详细发现可用于潜水设计机构，以评估海员在载人潜水器上的热舒适性，并在将来协调机舱空调系统的能量分配。

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