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Journal of Mechanical Engineering, 2019 This paper investigates the temperature field effect on the stress state of the turbine rotor blade lock joint elements where breakdowns were observed. The turbine rotor blade joint, when heat is supplied from the steam flow, is in conditions of uneven heating.
Ihor Palkov, Mykola Shulzhenko
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TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, 1985 Mitsuo NAGAO, Munekazu KANNO
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Research on combustion and emissions of heavy duty diesel engines under low-speed and low-load conditions in low temperature environments. [PDF]
PLoS ONEChina has a complex geographical environment, and in order to improve the combustion and emissions performance of heavy-duty diesel engines operating at low temperatures, low-speed and low-load conditions, a cleaner combustion mode has been proposed ...
Jie Zhang, Gengfei Liu, Huaimin Xu
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Design and research of hydraulic cylinder precise control test system
Meitan kexue jishu, 2023 The position deviation after the continuous action of the hydraulic support in the fully-mechanized mining face affects the mining efficiency of the shearer.
Lingyu MENG, Rulin ZHOU, Zijian GUO
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RUDN Journal of Engineering Research, 2023 The current guidelines recommend evaluating the quality of start-up and shut-down modes, as well as operation modes under load, according to the compliance of start-up parameters with start-up assignment schedules, standard instructions, a regime map ...
Yuri A. Radin +2 more
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Brinkman–Forchheimer-Darcy flow past an impermeable cylinder embedded in a porous medium [PDF]
INCAS Bulletin, 2015 For the flow past an impervious cylinder embedded in a fluid saturated porous medium only the linear (Darcy and Darcy - Brinkman) models were used.
Gheorghe JUNCU, Constantin POPA
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Applied Sciences, 2021 To improve the accuracy of a flexible support system (FSS) used for optical mirror processing, the influence of air content in the working medium and ambient temperature change on the FSS is analyzed and studied.
Zujin Jin +3 more
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Journal of Engineering and Sustainable Development, 2023 In the present study, forced convection heat transfer on eight inline cylinders immersed in a 10 × 10 × 30 cm packed bed of porous medium is numerically explored with a range of Reynolds numbers from 1100 to 2250.
Enas Khudhair, Dhamyaa Khudhur
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Energies, 2023 At partial load, traditional automotive gasoline engines have high pumping losses due to the throttling of the intake charge for load control. Variable Valve Timing (VVT) and the introduction of externally cooled EGR could reduce the pumping losses but ...
Huiyong Yang +5 more
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Principal Modernization Solutions for a 300 MW Power Unit to be Converted to Operate at Ultra-Supercritical Steam Parameters [PDF]
Journal of Mechanical Engineering, 2021 This paper analyses the state of power engineering in Ukraine and the main trends in the development of the world market in the field of converting high-capacity powerful power units of thermal power plants into ultra-supercritical (USC) ones.
Andrii O. Kostikov +6 more
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