用旋转辊喷涂时环境中的传热特性

Q3 Agricultural and Biological Sciences
Potravinarstvo Pub Date : 2018-12-14 DOI:10.5219/977
Igor Stadnyk, Volodymyr Piddubnuy, Halyna Karpyk, O. Yeremeeva
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引用次数: 8

摘要

对滚子对介质的冲击及其在变形影响下的行为进行了解析分析,并提出了为提供参数(准则)的最大值或最小值而选择最优过程变体的方法。考虑了介质质量变形强度的能量流方程的物理本质,它取决于施加机械力的方法,其先前的分散程度(配方)及其物理和机械性能。为了更直观地观察和理解研究的整体表现,提出了一种确定面团注射过程温度变化的介质和辊之间因果关系的方案。指出,确定辊体注射介质过程中温度对变形过程的影响,对成型、翻型设备的设计计算具有重要意义。考虑了热循环混沌流的影响,混沌流的特性也导致了注入过程中介质中一般热循环的破坏。同时,根据注塑机注射部位变形阶段的每个特定时期,这些破坏的程度可能足够深,其轮廓方向的变化会影响过程。部分揭示了确定面团和卷表面温度通量变化的方法。在此基础上,考虑了注塑机内黏性介质与旋转滚子工作体相互作用时能量势的变化。运动粒子之间的能量交换是由于身体中热量较高且能量较大的部分的分子碰撞以及能量粒子向相邻能量较小的粒子的转移而发现的。注意到辊体注射介质过程中温度通量的定义在计算成型、翻转、混合设备的设计中起着重要的作用。所获得的数据回答了一些关于工作体进入环境的工作过程中温度调节的可能性的问题。提出了一套测量设备使用过程中温度的方法。在这些数据的基础上,考虑了成型机辊筒单元的实际温度变化,并与现有的辊筒单元进行了对比分析。考虑了注塑机内黏性介质与旋转滚子工作体相互作用时的能势变化。运动粒子之间的能量交换是由于身体中热量较高且能量较大的部分的分子碰撞以及能量粒子向相邻能量较小的粒子的转移而发现的。注意到辊体注射介质过程中温度通量的定义在计算成型、翻转、混合设备的设计中起着重要的作用。所获得的数据回答了一些关于工作体进入环境过程的温度调节可能性的问题。揭示了成型机辊组温度通量形成的本质,提出了确定辊组温度通量的方法,并对现有辊组温度通量与新设计辊组温度通量进行了对比分析。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Features of heat transfer in the environment when it is sprayed with rotary rollers
The analytical analysis of roller impact on the medium and its behaviour at deformation influences are carried out, ways of choosing an optimal variant of the process for providing the maximum or minimum value of parameters (criterion) are proposed. The physical essence of the equation of energy flows of the intensity of deformation of the mass of the medium, which depends on the method of applying mechanical forces, the degree of its previous dispersion (recipe) and its physical and mechanical properties, is considered. For a more visual view and understanding of the overall performance of the research, a scheme of causal relationships between the medium and the roll, which determine the temperature change of the dough injection process, is proposed. It is noted that the determination of the influence of the temperature of deformation processes during the passage of the process of injection of the medium by roller working bodies plays an important role for calculations of the design of molding, roll-over equipment. The influence of thermal circulatory chaotic streams is considered, the character of which also leads to violations of the general heat circulation in the medium during the injection. At the same time, the level of such violations may be sufficiently deep with changes in the directions in their contours that influence the process, according to each particular period of the deformation stage in the injection site of the molding machine. Partly revealed methods for determining the change in temperature fluxes in the dough and on the surface of the roll. On the basis of which the change of the energy potential in the interaction of the viscous medium with rotating roller working bodies in the molding machine is considered. An exchange of energy between moving particles is discovered due to collisions of molecules of a more heated part of the body with a greater energy and the transfer of the energy particle to adjacent particles with less energy. It is noted that the definition of temperature fluxes during the process of injection of the medium by roller working bodies plays an important role in calculating the design of molding, roll-over, mixing equipment. The obtained data answer a number of questions about the possibility of thermoregulation of the process of the work of the working bodies into the environment.A set of measures for measuring the temperature during the use of devices was carried out. On the basis of their data, a real temperature change in the roller unit of the molding machine is considered, with a comparative analysis of existing ones with a newly designed design. The change of the energy potential in the interaction of the viscous medium with rotating roller working bodies in the molding machine is considered. An exchange of energy between moving particles is discovered due to collisions of molecules of a more heated part of the body with a greater energy and the transfer of the energy particle to adjacent particles with less energy. It is noted that the definition of temperature fluxes during the process of injection of the medium by roller working bodies plays an important role in calculating the design of molding, roll-over, mixing equipment. The obtained data answer a number of questions about the possibility of thermoregulation of the process of the working bodies into the environment. The essence of formation of temperature fluxes is revealed and the method of their determination in a roller assembly of a molding machine with a comparative analysis of existing ones with a newly designed design is proposed.
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来源期刊
Potravinarstvo
Potravinarstvo Agricultural and Biological Sciences-Food Science
CiteScore
2.50
自引率
0.00%
发文量
57
审稿时长
12 weeks
期刊介绍: Potravinarstvo Slovak Journal of Food Sciences. Articles published in the journal are peer reviewed and freely available online. Journal covers areas including: food hygiene, food safety and quality, food microbiology, food laws and regulations, ingredients and ingredient functionality, nutraceuticals, product formulation, sensory science and sensory statistical analysis, process control and its contribution to food processing operations, food chemistry, food toxicology, food engineering, food technology and biotechnology, nourishment, public health, primary production of food, food adulteration, food economics and marketing, environmental effect on food and food machinery.
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