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现有风冷吸收分别对传热与传质加以强化,绝热吸收有助于实现吸收器小型化,但存在溶液再循环量过大和再循环泵能耗大的问题。该文结合喷射器与超声波二者优势,以实现太阳能吸收式制冷机小型风冷化、高效化为目标,提出一种基于喷射器-超声波的绝热吸收制冷循环,以期利用喷射器回收溶液节流损失并提高吸收器压力,减少再循环倍率,利用超声波在绝热吸收器内的真空雾化增大吸收传质过程空间和时间,增强吸收效果。
The existing air-cooled absorption respectively enhances the heat and mass transfer. The adiabatic absorption contributes to the miniaturization of the absorber, but there is a problem that the solution recirculation amount is too large and the recirculation pump consumes large energy. This paper combines the advantages of ejector and ultrasonic to achieve the goal of small size air cooling and high efficiency of solar absorption chiller. An adiabatic absorption refrigeration cycle based on ejector and ultrasonic wave is proposed in this paper. Loss and increase the pressure of the absorber to reduce the recirculation ratio. The use of ultrasonic atomization in the adiabatic absorber increases the space and time of the absorption mass transfer process and enhances the absorption effect.