Steam injection into milk stream is a frugal method for milk sterilization. In this paper, the steam injection into a steady liquid water stream (instead of milk stream) is experimentally investigated. A transparent mixing chamber is fabricated using which the variations in steam condensation process are photographed by a high-speed camera. The length of the steam plume in water is determined using image processing of the still images of the phenomenon. The factors affecting the quality of steam condensation are studied. Increasing the chamber pressure reduces the steam plume length which in turn improves the quality of direct contact condensation. Decreasing the liquid water flow rate has an adverse effect on the phenomenon where the steam plume length is increased. It is also found that injecting the steam in a multi-stage configuration results in a reduction of the steam plume length, thereby, improving the condensation process.

中文翻译：

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蒸汽注入水流对牛奶杀菌的实验研究

将蒸汽注入牛奶流中是一种节约的牛奶杀菌方法。在本文中，蒸汽注入稳定的液态水流（而不是牛奶流）进行了实验研究。制造了一个透明的混合室，使用高速相机拍摄蒸汽冷凝过程中的变化。水中蒸汽羽流的长度是通过对现象的静止图像进行图像处理来确定的。研究了影响蒸汽冷凝质量的因素。增加腔室压力会减少蒸汽羽流长度，从而提高直接接触冷凝的质量。降低液态水流量对蒸汽羽流长度增加的现象有不利影响。