Стабілізація гідравлічних режимів у системі теплохолодопостачання на основі енергії холодної води і вентиляційного повітря
Journal Title: Вісник Національного університету "Львівська політехніка". Серія "Теорія та практика будівництва" - Year 2016, Vol 0, Issue 844
Abstract
The heat – cooling supply system of a building on the base of integrated energy of cold water and air flows with heat - pumping installation is suggested. The features of air movement in the pipeline, which connects the upper part of tanks - accumulators of hot and cold water are analyzed. For determination of the relationship of operational parameters in the analyzed system, differential equations of the air movement in the pipeline are used, what reflects the specific mechanical energy and proportion of frictional forces. After appropriate transformations in the form of specific mechanical energy balance and proportion of rolling friction forces flow in the pipeline, the resulting equation describing the steady flow of traffic along the length of the pipeline for the analysis of the relationship variables contained therein the equations is got. On the basis of the foregoing, the dependence for determining the mass flow rate of air flow through the pipeline in the final form are established. Graphic interpretation of the equation is submitted which describes the dependence of the gas flow from changes in relatively initial pressure at different values on its input in the process of stabilization pneumatic hydraulic mode indiscriminately uneven distribution of hot and cold water. Thus, the proposed system for the interrelation of initial conditions and variables that provide pneumohydraulic stability control water flow cooled and heated for subscriber subsystems is determined.
Authors and Affiliations
M. Vysotska
Keywords
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- EP ID EP230166
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