Transient processes are experimentally investigated at the initial stage of heat and mass transfer with steam absorption on the surface of 57.8 % water solution of lithium bromide in a bath with a diameter of 70 mm. The experiments were carried out both with a pure solution and with a solution where n-octanol surfactant was added. It is shown that with a sharp steam pressure increase in the volume above the surface of an absorbing solution, local temperature inhomogeneities are generated on the solution surface. The growth rate of these inhomogeneities is proportional to the growth rate of the steam pressure. It was found that, in contrast to the solution without surfactant, where convective flow is observed only during a short time interval after steam supply to the absorber, in a fixed layer of water-LiBr solution with surfactant addition, there is stable thermocapillary convection in the near-surface layer of solution during absorption. It is shown that for variable bottom topography, there can be space-localized zones, where the temperature on the solution surface is determined by the shape of bottom topography.

在传热和传质初期对瞬态过程进行了实验研究，在直径为70 mm的浴中，蒸汽吸收了57.8％的溴化锂水溶液。实验是用纯溶液和其中n为n的溶液进行的。加入辛醇表面活性剂。结果表明，随着吸收溶液表面上方容积中蒸汽压力的急剧增加，溶液表面会产生局部温度不均匀性。这些不均匀性的增长率与蒸汽压力的增长率成正比。结果发现，与没有表面活性剂的溶液相反，仅在向吸收塔供应蒸汽后的短时间内才观察到对流，在固定有表面活性剂加入的水-溴化锂溶液中，热毛细对流是稳定的。吸收过程中溶液的近表层。结果表明，对于可变的底部地形，可以存在空间局部区域，其中溶液表面上的温度由底部地形的形状确定。