Прогнозування температурно-вологісного режиму цегли за метеорологічними даними
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Date
2014
Authors
Сідей, В. М.
Пашинський, В. А.
Sidei, V.
Pashynskiy, V.
Journal Title
Journal ISSN
Volume Title
Publisher
Луцький НТУ
Abstract
За результатами експериментального дослідження та статистичного аналізу метеорологічних даних розроблена методика визначення статистичних характеристик температури й ступеню насичення вологою пор поверхневого шару цегляних стін в заданих кліматичних умовах експлуатації.
Based on the results of the experiment it is specified that the temperature of the surface layer of brick walls is close to the temperature of the air. Brick sorption humidity is linearly dependent on the relative humidity of air, averaged over half of the month. Statistical analysis of long-term observations of temperature and humidity of air in Kirovograd weather station confirmed the possibility of the probabilistic description of the climatic parameters in the form of quasi-stationary random processes. Ordinates temperature distributions are described by normal distribution law and those of relative humidity and degree of saturation of the pore ceramics with moisture sorption – by the sliced normal distribution law. It is established that the process of change of temperature and humidity in the winter months can be considered practically independent. We found the average annual variation and temperature conversions through zero degrees Celsius in different geographic regions of Ukraine, which can be regarded as the number of cycles of freezing and thawing of the surface layer of the brick walls. Working formulas to determine the statistical characteristics of the degree of the ceramics pore saturation with sorption moisture through the statistical characteristics of the random process of humidity changes of air were obtained. A large inertia of moisture exchange between the wall and the ambient air causes significant smoothing of random process changes of humidity. The obtained results and working formulas are an important element of forecasting methodology of brick walls durability on the criterion of frost resistance loss of the surface layer.
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Keywords
цегляні стіни, сорбційна вологість, температура, морозостійкість, довговічність, brick walls, sorption humidity, temperature, frost resistance, durability
Citation
Сідей, В. М. Прогнозування температурно-вологісного режиму цегли за метеорологічними даними / В. М. Сідей, В. А. Пашинський // Наукові нотатки. - Луцьк : Луцький НТУ, 2014. - Вип. 46. - С. 491-496.