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为了更准确地了解人体呼吸性污染物在其周围的分布特性,在737飞机5排模拟座舱中开展了相关的实测研究。通过多点测量真实人体在座舱内呼吸产生的CO_2浓度值,得出不同“污染源”位置下CO_2浓度分布情况。测量结果表明:人体位于靠近过道的座位时产生的CO_2在纵向和横向传播过程中衰减较快,座舱内过道左右两侧气体很少出现交叉传播;而人体位于中间座位时产生的CO_2横向传播要强于纵向传播;相比于靠近过道座位,人体在中间座位产生的CO_2扩散范围更广。
In order to get a more accurate understanding of the distribution characteristics of human respiratory pollutants in its surroundings, relevant field measurements were carried out in a 5-row simulated cockpit of 737 aircraft. By measuring the concentration of CO 2 produced by the human body in the cockpit by multi-point measurement, the distribution of CO 2 concentration under different “pollution sources” is obtained. The measurement results show that when the human body is near the aisle seat, the CO 2 decays rapidly in the longitudinal and transverse directions and the gas on the left and right sides of the aisle of the cockpit seldom crosses; while the CO 2 generated by the human body in the middle seat is more transversely transmitted Spread longitudinally; the body produces a wider range of CO 2 diffusion at the center seat than the aisle seat.