低热辐射环境中消防服系统内热传递机制的研究进展

为有效避免低热辐射环境中消防作业人员遭受热损伤,揭示消防服系统内复杂的热交换机制并由此指导产品设计与开发,由消防服系统传热理论出发,从消防服织物基本性能和服装的款式特征、人体的形态结构与活动状态、辐射热源的特征以及热湿耦合作用4个角度对当前的研究进展进行了回顾与讨论。基于对以往研究中存在的难点和瓶颈问题的分析,提炼出未来研究中值得探索的方向,包括:非均匀空气层的分布与模拟方法的升级、非稳态人体运动和环境风形成的气流场和速度场变化规律及其与传热的关系、耦合人体热调节模型拓展服装传热机制研究的内涵3个层面。

Research progress in heat transfer mechanism of firefighter protective clothing under low-level radiant heat exposures

In order to effectively achieve the control of the thermal damage to the firefighting workers in low heat radiative environment, the complex heat exchange mechanism in the firefighting clothing system, were reviewed to guide product design and development. Based on the heat transfer theory of fire-fighting clothing system, the current research progress was reviewed and discussed from four perspectives, including the basic performance of fire-fighting clothing fabrics and the style of clothing, the morphology and activity of the human body, the characteristics of radiant heat sources, and the coupling effect of heat and moisture. Based on the analysis of the difficulties and bottlenecks in the previous research, the research directions worth exploring for the future were refined, which are the distribution of inhomogeneous air layers and the upgrading of simulation methods, the air flow and velocity field formed by unsteady human motion and environmental wind as well as the relationship between the air flow and heat flow, expanding the connotation of clothing heat transfer mechanism research by coupling human thermo-regulational model.