Open AccessStudy of heat transfer in the disk of a regenerative crystallizer
Author(s) -
Yu S. Kovshova,
D. Yu Krasnichkov,
M. I. Bayazitov
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1515/5/052061
Subject(s) - refrigerant , heat transfer , heat transfer coefficient , thermodynamics , mechanics , volumetric flow rate , materials science , flow (mathematics) , mechanical engineering , heat exchanger , physics , engineering
The study is devoted to the research of the heat transfer process at different numbers and locations of labyrinth passages of the regenerative mold disk design by numerical modelling. The designs of the cooling disk with 6, 12 and 18 labyrinth passages are considered. It was found that the number increasing of labyrinth passages to twelve passages allows increasing the average heat transfer coefficient by 1.3 times and providing 2-fold increase in the uniformity of heat transfer. Analysis of the dependence of heat transfer in a disk with twelve labyrinth passages on the refrigerant flow showed that the greatest uniformity of temperature distribution over the disk surface is achieved when the refrigerant flow rate is 100 m 3 /h. An equation for the dependence of the average heat transfer coefficient from the refrigerant to the disk wall on the flow rate is obtained. It can be used to find the required flow rate of the refrigerant in order to achieve a certain average temperature when regulating the crystallization process. Thus, an improved version of the cooling disk design is proposed for the regenerative disk type mold, which provides a more efficient heat transfer compared to existing analogues, which is confirmed by the results that were obtained.