Збірники наукових праць ЦНТУ

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    Принципи побудови математичної моделі газогенераторного процесу
    (ЦНТУ, 2019) Конончук, C. В.; Скрипник, О. В.; Свяцький, В. В.; Конончук, С. В.; Скрипник, О. В.; Свяцкий, В. В.; Kononchuk, S.; Skrypnyk, O.; Sviatskyi, V.
    В статті запропоновано новий підхід до вивчення взаємозв’язку між основними параметрами газогенераторного процесу; оригінальні методики розрахунків матеріального та теплового балансів процесу газифікації твердого палива; спосіб реалізації математичної моделі газогенераторного процесу на комп’ютері. В статье предложен новый подход в исследовании взаимосвязей между основными параметрами газогенераторного процесса; оригинальные методики расчета материального и теплового балансов процесса газификации твердого топлива; способ реализации математической модели газогенераторного процесса на компьютере. The need for the development and introduction of technologies in Ukraine that are capable of providing energy resources savings, improving sanitary and hygienic and economic indicators of production, encourage the search for and use of alternative energy sources, including gasification of solid fuels of local sources in gas generators. To solve problems of forecasting and optimization of the gas generator process on the basis of the study of the relationship between its parameters, as well as the calculation of the material and thermal balance of the gas generator, the principles of detection of the laws of heat and mass exchange, as well as the invention of the mathematical description of the process, taking into account the type of the gas generator process (direct, horizontal), quantity, temperature and chemical composition of fuel and blast. In order to study the relationship between the most important parameters of the gas generator process, a laboratory plant was developed in which the reverse gas generator process was implemented. However, the conduct of experimental studies in the variation of a large number of input parameters leads to an increase in the number of field experiments, given their complexity, is limited by great difficulties. Therefore, of the three possible types of mathematical models (theoretical, mixed and statistical) for gas generators in the present conditions, it is expedient to construct models of mixed type, when the mathematical structure of the model is determined theoretically, and the identification of the model is carried out using experimental data. The gas generator is considered as a static object with lumped parameters. The original methods of calculating the material and thermal balance of the gasification process of solid fuel have been developed, taking into account the variation of the input parameters. A block diagram of the solution of the problem of determining the temperature dependence of the generator gas and its amount from the air flow, which allows obtaining a computer program for solving this problem, has been developed. The given method of mathematical modeling of the gas-generating process allows to solve problems of forecasting and optimization of this process, gives the possibility of practical use of mathematical model at designing and operation of gas generators at enterprises of different industries.
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    Газифікація твердих біопалив та обгрунтування конструкції газогенераторів для її провадження
    (КНТУ, 2013) Клименко, В. В.; Кравченко, В. І.; Klymenko, Vasiliy; Kravchenko, Vladimir
    Проведено аналіз конструкцій газогенераторів твердих біопалив та обґрунтовано для умов роботи у складі автономних енергетичних установок вибір типу газогенератора та виду газофікуючого агенту. Визначено та проаналізовано основні характеристики процесу газифікації твердих біопалив, зокрема у вигляді пелет, що впливають на якість та теплоту згоряння синтез-газу. Надано рекомендації для розрахунку основних конструктивних елементів газогенераторів з урахуванням особливостей процесу газифікації твердих біопалив та вимог до якості синтез-газу. For work in work in forest, farms and other farms with production of heat and electric energy are required Autonomous energy installation. Such installations are composed of heat engine, running on local raised over the biological resources (wood, straw, etc), processed in the generator gas into synthesis gas. For creating the design of the gas generator analysis of gasification of pellets and briquettes of biofuel. The technology of gasification of solid biofuels in gas generators. Considered design of the gas generators, which ensure productivity and quality of synthesis-gas from solid fuel, as well as the conditions of slagging. The influence of the construction elements of the gasification chamber on the productive and efficient operation of the gas generator and offered constructive parameters for the work of its pellet. Found that the greatest impact on the quality of synthesis gas by such structural elements as the diameters of фурменного belt and neck, the number of lances and some others, which, depending on the type of biofuel can modify their settings. Physical-mechanical and thermophysical characteristics of granular biofuels different from the usual, so it is reasonable to conduct a study to determine the structural elements of the gas generator, efficiency of the gasification and quality of synthesis gas, using new types of biofuel in the form of pellets and briquettes.