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Methods of Probabilistic Assessment of Building Enclosing Structures Thermal Reliability
Probabilistic method for determining statistical characteristics of heat transfer resistance and enclosing structures inner surface temperature, which takes into account random nature of enclosing structures layers thickness, thermal characteristics of materials, indoor and ambient temperatures are developed. All random variables have normal distributions, and the air temperature is presented in a form of a sequence of 12 normally distributed random variables for each month of the year. Obtained statistical characteristics of the enclosing structure inner surface temperature for each of the heating period months enable estimating the duration of thermal failure (in minutes per year) by the criteria of comfort near the enclosure and formation of condensate on its inner surface. Relative durations of thermal failures can be roughly considered as annual failure probabilities. Developed techniques allow performing a comparative assessment of different enclosing structures thermal reliability level in the given climatic conditions of operation according to the criteria of sufficient heat transfer resistance, comfort in the room and possibility of condensation on the enclosures inner surface. Performed examples of calculations indicate a sufficient level of residential buildings walls thermal reliability with facade insulation, made in accordance with current design standards of Ukraine, and impossibility of normal operation of 510 mm thick brick walls without additional insulation, which were massively erected in the second half of last century.
Methods of Probabilistic Assessment of Building Enclosing Structures Thermal Reliability
Probabilistic method for determining statistical characteristics of heat transfer resistance and enclosing structures inner surface temperature, which takes into account random nature of enclosing structures layers thickness, thermal characteristics of materials, indoor and ambient temperatures are developed. All random variables have normal distributions, and the air temperature is presented in a form of a sequence of 12 normally distributed random variables for each month of the year. Obtained statistical characteristics of the enclosing structure inner surface temperature for each of the heating period months enable estimating the duration of thermal failure (in minutes per year) by the criteria of comfort near the enclosure and formation of condensate on its inner surface. Relative durations of thermal failures can be roughly considered as annual failure probabilities. Developed techniques allow performing a comparative assessment of different enclosing structures thermal reliability level in the given climatic conditions of operation according to the criteria of sufficient heat transfer resistance, comfort in the room and possibility of condensation on the enclosures inner surface. Performed examples of calculations indicate a sufficient level of residential buildings walls thermal reliability with facade insulation, made in accordance with current design standards of Ukraine, and impossibility of normal operation of 510 mm thick brick walls without additional insulation, which were massively erected in the second half of last century.
Methods of Probabilistic Assessment of Building Enclosing Structures Thermal Reliability
Lecture Notes in Civil Engineering
Onyshchenko, Volodymyr (Herausgeber:in) / Mammadova, Gulchohra (Herausgeber:in) / Sivitska, Svitlana (Herausgeber:in) / Gasimov, Akif (Herausgeber:in) / Kariuk, Alla (Autor:in) / Pashynskyi, Victor (Autor:in) / Pashynskyi, Mykola (Autor:in) / Mammadova, Fidan (Autor:in)
International Conference BUILDING INNOVATIONS ; 2020
Proceedings of the 3rd International Conference on Building Innovations ; Kapitel: 18 ; 179-189
23.09.2021
11 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Preparation method for building enclosing wall prefab and building enclosing wall plate
Europäisches Patentamt | 2015
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