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在既考虑吸附剂颗粒内部的传质阻力,又考虑吸附剂颗粒之间的外部传质阻力的前提下,建立了余热吸附制冷系统中吸附床的三维非平衡传热传质数学模型,它包括加热/冷却流体传热模型、换热管传热模型、肋片传热模型、吸附剂颗粒床传热传质模型4部分;通过对模型的数值求解,获得了吸附床内部的温度演变曲线和性能指标,与实验结果基本吻合。
The three-dimensional non-equilibrium heat and mass transfer mathematical model of adsorbent bed in waste heat adsorption refrigeration system is established on the premise of considering the mass transfer resistance of adsorbent particles and the resistance of external mass transfer between the adsorbent particles. It includes Heating / cooling fluid heat transfer model, heat transfer tube heat transfer model, heat transfer fins model, adsorbent particle bed heat and mass transfer model 4 parts; by numerical solution of the model, get the temperature evolution curve inside the adsorption bed and Performance indicators, consistent with the experimental results.