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Исследование границ применимости кислородного микрокалориметра

выпускная квалификационная работа магистра

Исследование границ применимости кислородного микрокалориметра

Abstract

Основной целью работы является изучение метода кислородной микрокалориметрии, оценка результатов для всего диапазона скоростей нагрева образцов и проведение экспериментов с различными веществами, имеющими разное количество экстремумов в графиках зависимости скорости тепловыделения от температуры. Также проведено исследование качества работы прибора, посредством калибровки датчиков и измерения уровня шума. Измерения производились расходомером и оценивалась истинность коэффициентов в программном обеспечении, связанном с МСС калориметром. В работе были получены кинетические параметры для двух веществ на основе реакции n-го порядка для одного вещества и на основе трёх параллельных реакций n-го порядка для второго. В дополнение к исследованию представлено краткое руководство и разбор различных параметров и функций программного обеспечения для обработки данных. В результате полученных данных можно сделать вывод о кинетике процесса пиролиза и дальнейшее использование этих результатов в практических целях.

The main goal of the work is to study the method of oxygen microcalorimetry, evaluate the results for the entire range of sample heating rates, and conduct experiments with various substances that have a different number of extrema in the graphs of the dependence of the heat release rate on temperature. Also, a study was made of the quality of the device, by calibrating the sensors and measuring the noise level. The measurements were made with a flow meter and the validity of the coefficients was evaluated in the software associated with the MCC calorimeter. In the work, the kinetic parameters for two substances were obtained on the basis of the n-th order reaction for one substance and on the basis of three parallel reactions of the n-th order for the second. In addition to the study, a brief guide and analysis of the various parameters and functions of the data processing software is presented. As a result of the obtained data, it is possible to draw a conclusion about the kinetics of the pyrolysis process and further use of these results for practical purposes.

Keywords

полистирол, кинетика, kinetics, калибровка, Микрокалориметрия, flammability, горючесть, polystyrene, calibration

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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