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目的探讨扩大囊覆盖面积抗荷服与试验型通风服配穿时的通风阻力及暴露高温环境下的通风散热效果。方法受试者为5名健康志愿者,环境气候条件干球温度40℃,试验时间90 min。结果当通风流量100 L/min和200 L/min时,通风阻力分别为0.94 kPa和2.48 kPa。热暴露期间,两组试验均可维持加权平均皮肤温度在人体舒适范围(33.1～34.3℃);下身平均皮肤温度31.2～32.9℃,但小腿皮肤温度无明显变化(33.1～34.3℃);心率增值11次/min;出汗量0.180 kg/h。结论上述结果表明,该套装备的通风阻力略大,通风分布欠合理,通风散热效果在可接受范围。
Objective To investigate the ventilation resistance and the ventilation and heat dissipation effect of expanding the coverage area of the anti-kimono and the experimental ventilation suit when worn. Methods The subjects were five healthy volunteers, the ambient temperature dry bulb temperature 40 ℃, the test time 90 min. Results At ventilation rates of 100 L / min and 200 L / min, the ventilation resistance was 0.94 kPa and 2.48 kPa, respectively. During heat exposure, the weighted average skin temperature was maintained at a comfortable range (33.1-34.3 ° C) for the two groups of experiments; mean skin temperature was 31.2-32.9 ° C for the lower body, but no significant change was observed in the calf skin temperature (33.1-34.3 ° C) 11 times / min; sweating volume 0.180 kg / h. Conclusion The above results show that the set of equipment slightly ventilation resistance, ventilation distribution is not reasonable, ventilation and cooling effect in the acceptable range.