Прогнозування режимів роботи газотранспортних систем з урахуванням енерговитрат на транспорт

Abstract

Дисертацію присвячено встановленню закономірностей протікання газодинамічних процесів у складних системах газопроводів з урахуванням термодинамічних факторів та розробці рекомендацій зменшення енерговитрат на транспорт газу. В роботі виконано дослідження впливу параметрів режимів роботи магістральних газопроводів на величину енерговитрат на транспортування газу. Для цього створено математичні моделі та приведено результати досліджень з оцінки технологічних режимів газотранспортних систем на енерговитрати, розроблено програмний комплекс прогнозування і оптимізації режимів.

Диссертация посвящена установлению закономерностей протекания газодинамических процессов в сложных системах газопроводов с учетом термодинамических факторов и разработке рекомендаций уменьшения энергозатрат на транспорт газа. В работе выполнено исследование влияния параметров режимов работы магистральных газопроводов на величину энергозатрат на транспорт газа. Для этого созданы математические модели и приведены результаты исследований оценки технологических режимов газотранспортных систем на энергозатраты, разработан программный комплекс прогнозирования и оптимизации режимов.

Dissertation is devoted establishment of conformities to the law of flowing of газодинамических processes in the difficult systems of gas pipelines taking into account thermodynamics factors and development of recommendations of diminishing of expenses of energy on the transport of gas. Research of influence of parameters of the modes of operations of main gas pipelines is in-process executed on the size of энергозатрат on the transport of gas. For this purpose mathematical models are created and the results of researches of estimation of the technological modes of the gas-transport systems are resulted on энергозатраты, the programmatic complex of prognostication and optimization of the modes is developed. On defence conformities to the law of influence of unisothermal and transients dart out in the difficult gas-transport systems on енерговитра тшсть of pipeline transport of gas. A scientific novelty consists in an optimum management the modes of operations of the difficult gas-transport system on the base of complex theoretical and experimental researches. The estimation of influence of factors is given on conformities to the law of motion of gas streams and character of hydraulic resistance. Dependences of influence of parameters of the technological modes of the gas-transport systems are set on power expenses on transporting of gas. On the basis of statistical researches взаимовлияние of hydraulic efficiency of linear areas and measure of the rational use of power resources is set on the transport of gas. On the basis of analytical and experimental researches the estimation of degree of dispersion energy is given at the pipeline transport of gas. Practical meaningfulness of die conducted scientific and experimental researches consists in the improvement of methods of management the difficult gas-transport systems taking into account power charges on the pipeline transport of gas. On the basis of results of researches the method of management work of the difficult gas-transport system is created in the conditions of selection and gas pumping application of which is given by possibility to optimize office hours and manage the system on разных its stages. A method is given realized in algorithms («Calculation of intermediate parameters of hydraulic resistance, middle temperature, gas permanent, coefficient of compressibility») and programs («Prognosis», «Simulation model», «Calculation of hydrodynamic parameters») which are inculcated on the enterprises of «Ukrtransgaz». Influence between the parameters of the modes of operations of gas pipeline is set and by the charges of energy on the transport of gas and it is rotined that энергозатраты at transporting the energies related to dissipation, by the caused action of inertia forces in a stream and heat exchange for an environment, here an output-input of gas pipeline ratio lies within the limits of 15 - 25%. Statistical researches of influence of hydraulic efficiency of linear areas of gas pipelines on the degree of the rational use of energy at the transport of gas rotined, depending on the mode of operations of gas pipeline of decline of coefficient of hydraulic efficiency on 1% results in diminishing of output-input ratio on a size 0,5 -2,5%. Analytical and experimental researches of dispersion energy at the pipeline transport of gas confirm position about operating of inertia forces on a stream and influence of thermodynamics unideality of gas on the size of expenses of energy at a pumping-over. Experimental approbation and generalization of the got results allowed to create a programmatic complex for the design of work of the gas-transport systems, introduction of which in practice of exploitation of gas pipelines of «Ukrtransgaz» allowed to get an annual economic effect in size of 112 thousands of Uah in a year.