China's first new type of condensing evaporator was successfully developed

A few days ago, it was learned from the National Natural Science Foundation of China that Chinese scientists had invented the world's first "concentric annular flow" new type condensation evaporator with international advanced level.
The cryogenic condensing evaporators currently adopt the traditional phase change heat transfer mechanism and structure, and the heat transfer efficiency is low. As a result, the condensing evaporators in these large-scale equipments are not only bulky, have high manufacturing costs, and are difficult to transport and install, and its Poor performance and power consumption.
Under the support of the National Natural Science Foundation of China, Prof. Wu Yuyuan and other scholars from Xi'an Jiaotong University have conducted 15 years of research on the enhancement of thermal siphonic two-phase flow enhancement heat transfer in cryogenic fluid slits and the non-equilibrium condensation heat transfer in low-temperature multicomponent fluids. Strengthen experimental research "the subject of scientific research. In terms of improving the efficiency of condensing evaporators, reducing their volume and weight, and improving their operational performance and safety and reliability, breakthroughs in theoretical and technological development have been achieved.
The new condensing evaporator designed based on the new heat transfer mechanism has a boiling heat transfer coefficient 59 times higher than that of a common tubular heat exchanger, and its heat transfer temperature difference is the lowest in the international similar products and the design of similar foreign products. The indicator has increased by 50%.