In the present article,a numerical procedure is used to design spray absorbers,simulating the heat and mass transfer between solution drops and refrigerant vapor.The simulation procedure is applied for designing the absorption chambers of a double-stage refrigeration system using the lithium nitrate-ammonia solution.Results show that about 60% of the total mass transfer occurs during the drops' deceleration period.This period represents 13.4% and 11.6% of the drops' residence time inside the low-and high-pressure absorbers until they reach the equilibrium state,respectively.For the cases considered,the absorption chamber lengths are equal to 18.4 cm and 20.4 cm.The drops stay in the uniform movement zones approximately 86.1% and 88.3% of the residence time,respectively.Average mass transfer coefficients inside the absorbers are 1.86 x 10~(-4)m/s and 2.35 x l0~(-4)rn/s in each case.
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机译：本文采用数值程序设计喷雾吸收器，模拟溶液液滴与制冷剂蒸气之间的传热和传质。该模拟程序用于设计采用硝酸锂电池的二级制冷系统的吸收室。结果表明，在液滴的减速期间发生了约60％的总传质，此期间分别代表液滴在低压和高压吸收器中直至达到平衡的停留时间的13.4％和11.6％。对于所考虑的情况，吸收室的长度分别等于18.4 cm和20.4 cm。液滴分别停留在均匀运动区域中，分别停留时间的86.1％和88.3％。吸收器内部的平均传质系数分别为1.86 x 10〜（-4）m / s和2.35 x l0〜（-4）rn / s
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