基于微型风扇阵列系统的人体降温空调服

Micro-fan-array system enabled air conditioning suit for cooling human body

论证基于微型风扇阵列的人体降温空调服的概念,并从理论和实验方面对其可行性进行评估。通过数值求解各类典型热环境条件下的三维Pennes生物传热方程,揭示出在皮肤表面引入微型风扇阵列时,其强化散热作用可显著降低体表的温度水平。同时,还采用红外成像技术及热电偶测温方式,对模拟人体的发热块经受风扇阵列强化散热作用前后的降温情况进行实验测定,进一步证实微型风扇阵列的高效降温特性,期望引申出新一代可灵活调节的空调服。

The concept of the body cooling suit enabled from the micro-fan-array system was interpreted. Theoretical prediction and experimental measurements were performed to demonstrate the feasibility of the new cooling method. Based on Pennes equation, numerical simulation on the three-dimensional heat transfer in human body subject to various typical ambient thermal conditions revealed that, implementation of the microfan-array near the skin surface could significantly lower the body surface temperature, owning to its strong capability, in heat transfer enhancement. Meanwhile, both infrared thermometer and thermocouple data acquisition system were adopted to measure the micro-fan-array cooling induced temperature decrease on a thermo-man used to simulate the human body. The results further strongly support the high efficiency of the micro-fan-array cooling. This research is expected to open a new strategy for developing air cooling suit aiming at flexibly regulating the heat dissipation states of the body surface under a hot environment.