The present study explains a steady-state method of measuring convective heat transfer coefficient on the casing of an axial flow turbine. The goal is to develop an accurate steadystate heat transfer method for the comparison of various casing surface and tip designs used for turbine performance improvements. The free-stream reference temperature, especially in the tip gap region of the casing ...

In this paper, a simulation-based method is proposed for optimal placement of vibration sensors for the purpose of fault detection in a centrifugal pump. The centrifugal pump is modeled to investigate the effect of vane tip fault on fluid flow patterns numerically. Pressure pulsations are investigated at different locations at the inner surface of the pump before and after the presence of the f...

Through the study of casing damage in oil and water wells, causes are found out. At same time, a set systematic prevention control methods summarized based on fine geological research results combination dynamic static conditions. The source inflow is cut off effectively preventing further spread area, which plays an important role controlling speed improving development effect area.

Guy wires are a powerful mechanical tool used widely in all industries. Most of the applications employed supporting tall structures such as antenna, communication towers, transmission lines, electric poles, and erecting flare stacks on an oil gas platform or plant. Severe wind events tornadoes primary failurein transmitting line structure many places worldwide. So, this research aims to invest...

A running transformer frequently experiences interturn faults; they are typically difficult to detect in their early stages but eventually progress short circuits, which cause damage the transformer. Therefore, finding out fault mechanism of full process can provide a theoretical basis for detection. In this paper, an electromagnetic-solid mechanics coupled finite element model consistent with ...

This paper presents the numerical modelling and simulation of a 2D vertical well tubular model excited by coaxial radiofrequency transmission line placed in its annular space for purpose downhole RF energy transmission. The study identifies mechanism losses due to coupling between steel tubing casing using resonance mode analysis. design left-handed artificial power is proposed minimize right-h...

Oil field assimilation needs a complex of facilities and service lines for oil recovery, transportation and refining. It includes wells, collection stations, pipelines, meters, separators, formation pressure maintenance equipment, roads and power lines. Oilfield assimilation depends on the geographical and climatic features of the field, such as the areas under existing buildings, areas taken u...

A finite element model was generated of a Søderberg electrode in a ferromanganese smelter. In this model, the casing and fins were modelled explicitly, and temperature-dependent material properties were included. A two-stage analysis procedure was used, the first part being a coupled thermal-electrical analysis using an applied DC current. As the casing material was non–magnetic, the DC current...

The present study explains a steady-state method of measuring convective heat transfer coefficient on the casing of an axial flow turbine. The goal is to develop an accurate steady-state heat transfer method for the comparison of various casing surface and tip designs used for turbine performance improvements. The freestream reference temperature, especially in the tip gap region of the casing,...

The onshore oil and natural gas industries of China have started a large-scale development when crude oil reserves have been difficult to recover. The stratum fracture modification is an indispensable measure to efficiently develop oil and gas fields. Hydraulic fracturing is the most important reservoir stimulation technique, but it is still faced with various problems such as the failure to fr...