Experimental study of transient processes in the elements of climatic systems release_45i2dgl7ujawlesok2fa5l2rr4

by Rustam Mansurov

Published in E3S Web of Conferences by EDP Sciences.

2019   Volume 114, p06005

Abstract

Transition processes for different modes of functioning of elements of the climate system model are experimentally investigated and analyzed. The following elements have been selected as the objects of experimental research: the air heater and the fan as the main elements that are part of each climate system. The system under study consisted of the following sequential elements: air heater-fan-room. The relative excess heat is proposed as a dimensionless parameter in the analysis and normalization of experimental data. First, the relative excess heat takes into account changes in temperature, moisture content and flow rate of humid air, and secondly, allows identifying similarities in the processes of change over time of the thermodynamic state of the air when passing through the climate system elements for different operating modes of the fan and air heater. Analysis of the evolution of relative excess heat during transient changes in the parameters of the flow of humid air, as in case of abrupt changes in performance of a heater but with a fixed performance of a fan and in case of abrupt changes in performance of a fan, but with a fixed power of the air heater. The regularities of the evolution of relative excess heat in the flow of moist air and its most important qualitative types when passing through the elements of the model climate system are shown. It was found that the types of behavior of relative excess heat depend only on the state in which the elements of the system are located during the transition process, and not on the element itself as a physical object.
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