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Category: Uncategorised
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Published: Tuesday, 25 January 2022 07:47
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Written by Administrator
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Volume 9 (1), January 2022, Pages 77-83
1Hokuma Rzayeva, 2Saida Aliyeva, 3Svetlana Hajiyeva, 4Togrul Hadiyev
1Head of the laboratory, Department of “Materials science and processing technologies”, Azerbaijan State Oil and Industry University, Azerbaijan.
2,3Assistant, Department of “Materials science and processing technologies”, Azerbaijan State Oil and Industry University, Azerbaijan.
4Master, “Materials science and processing technologies”, Azerbaijan State Oil and Industry University.
ABSTRACT
The main reason for the failure of oilfield equipment is corrosion. The price of the processing share for mechanical processing of the shaft of the axial-piston pump has been determined. The processing of the worn cylindrical shaft of the pump went through four stages. The most important task of modern repair production is the creation, development and application of new high- efficiency technology, as well as increasing labor productivity, quality of work, reducing material and energy consumption of operations for the restoration of obsolete parts.
Keywords: Axial-piston pump, shaft mechanical processing share, repair work, wear, cylindrical shaft, mechanical processing processes.
DOI: 10.36962/etm0901202277
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Category: Uncategorised
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Published: Tuesday, 25 January 2022 07:39
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Written by Administrator
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Volume 9 (1), January 2022, Pages 57-68
1Qasim Mammadov, 2Eljan Bayramli
1Assistant professor, department of “Industrial Machines”, Azerbaijan State Oil and Industry University, candidate of technical sciences, Azerbaijan.
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
2Repairman, Pilot production enterprise for the repair and rental of drilling rigs by "Azneft", master, "Industrial machinery" Department, Azerbaijan State Oil and Industry University, Azerbaijan. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
ABSTRACT
Industrial plants are huge consumers of energy, these plants are installing heat exchangers in an effort to reduce energy consumption, and so improve operating efficiencies. Limited numbers of experimental and numerical investigations have dealt with the parameters affecting the heat transfer aspects in single phase direct contact heat exchangers which may be selected for their high thermal efficiency and minimum capital investment. In oil refineries energy from hot temperature oil streams can be recovered by transfer directly to a cheap coolant liquid in liquid-liquid direct contact heat exchangers. The heat recovered from these heat exchangers has different applications including preheating boiler feed water and preheating wash water. Heat recovery from hot temperature refinery products using direct contact heat exchanger throughout a theoretical phenomenological study is central to the theme of this paper. Kerosene-water system has been chosen. The effect of the heating fluid inlet temperature (65-97.50)°C, and mass flow rate (25 to 45) kg/s on direct contact heat exchanger design parameters and heat transfer characteristics were investigated theoretically throughout nine cases. Correlations of heat recovered from the system as well as design and operating characteristics of the heat exchanger were estimated. Increasing kerosene flow rate found to associate directly with increasing the contact surface area, number of plates, number of channels per pass and pressure drop, while when the heat exchanger is designed to operates at high kerosene inlet temperature, big heat exchangers with large areas, high number of plates and channels per pass are needed for efficient heat exchanger performance. Optimization and modeling the effect of kerosene operating variables on heat recovered was conducted using Response Surface Methodology. The results showed that an optimum heat recovery value of 6.8782 megawatt could be achieved for kerosene optimum inlet temperature (91.82°C), and mass flow rate (50.11 kg/s).
Keywords: direct contact heat exchanger; kerosene and water system, kerosene mass flow rate and inlet temperature.
DOI: 10.36962/etm0901202257
