Registration Number
0217U006693,
0115U000118
, R & D reports
Title
Development of methods for cold flow influence estimation on long-term strength of energy equipment parts in hydrogen environment
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Head
Ivanytskij Yaroslav,
Registration Date
27-12-2017
Organization
Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine
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The theoretical bases are developed using the energy approach and software for assessing the level of safety of structural metallic elements in creep and hydrogenation operating conditions. The characteristics of the material under the creep and hydrogenation influence high temperatures and pressure have been experimentally investigated. Using the proposed method, the stress-strain state of the of the high pressure steam boiler drum made from 22K steel is determined taking into account the creep and hydrogenation of metal and real geometrical shape of the drum. Damage metal drum parameter for two operating modes is calculated. It was established that the maximum value of the metal damage reaches near the aperture on the inner wall of the drum. Also was shown, that hydrogen accelerates the accumulation of damage and reduces the lifetime of metal for a planned boiler stopping by 15 -. 40%. In the case of an emergency stop, the time of operation of metal decreases by 20- 50%.
Product Description
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Бойко Василь Миколайович
Вергун Ігор Андрійович
Гвоздюк Микола Марянович
Гембара Оксана Володимирівна
Дмитрів Зеновій Володимирович
Костів Ростислав Богданович
Кунь Петро Степанович
Ленковський Тарас Михайлович
Мольков Юрій Валерійович
Чабан Петро Михайлович
Чепіль Ольга Ярославівна
Черниш Марія Степанівна
Штаюра Степан Теодорович
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2020-04-02
