EFFECT OF CRITICAL HEAT FLUX ON THE EFFICIENCY OF EVAPORATORS

Abstract

The problems covered by the theory of heat are examined either from a phenomenological or statistical point of view. The aim of the study is to investigate the effect of critical heat flux on the efficiency of evaporators. The study will be examined with reference to the theories of scientists. Therefore, the theory of heat is divided into two parts under the name of thermodynamics and statistical physics. The internal molecular-atomic structure of the object or system investigated in thermodynamics and the mechanism of the occurring micro-processes are not considered at an obvious rate. In solving the researched problems, the principles determined as a result of previous experiments, as well as the known properties of objects or systems, are used. In statistical physics, on the other hand, the molecular atomic structure of the investigated system and the mechanism of microprocessors are based on apparent speed, and probability theory is widely used. As in other fields of science, thermodynamics has historically been formed and developed as a result of the demands of life, and practice, especially hydromechanics (heat engineering). In the practice of designing boiling-type devices for nuclear power plants and several other power plants, there are cases when heat-stressed surfaces are made in the form of horizontal tube panels. During the flow of a vapor-liquid flow under the influence of gravity, there is often no phase separation, which affects the laws of exchange processes and, in particular, the occurrence of a heat transfer crisis. As a rule, the values of the critical heat flow in horizontal pipes are lower than those in vertical pipes. To increase the critical power of the channel, various types of intensifiers are used. The subject is the study of critical heat fluxes and hydraulic resistance in horizontal pipes with a capillary-porous wall coating. The presence of a network structure near the heating surface significantly changes the physical picture of the flow and heat transfer in the near-wall boundary layer. This can lead to a significant change in both the critical steam content and hydraulic resistance. Keywords: thermodynamic, critical heat flux, evaporators, method