Numerical Simulation of Multi-Pass Welding Temperature Distribution of Jacket Platform Assembly Using SYSWELD Software

2016 ◽  
Vol 850 ◽  
pp. 452-456
Author(s):  
Bo Zhang ◽  
Han Tao ◽  
Cun Liu
Keyword(s):  
Temperature Distribution ◽  
Flame Retardant ◽  
Weld Joint ◽  
Field Data ◽  
Simulation Software ◽  
Jacket Platform ◽  
Welding Temperature ◽  
Repair Work ◽  
Reserved Area ◽  
Offshore Oil

At present, the flame retardant system was adopted by Cnooc offshore oil engineering (Qingdao) co, LTD (COOEC) workshop ton class jacket platform, whose heat resistance temperature is no more than 80°C. The part of flame retardant area is burned by excessively high temperature and excessive on-site repair work at COOEC workshop due to reserved area of flame retardant is not accurate. In this paper the welding simulation software SYSWELD was used to analyze the temperature distribution of weld joint of typical assembly at workshop. The process parameters, material and model input parameters were adjusted by the field data feedbacks to obtain the optimized welding temperature distribution. The results show that the temperature distribution simulated by the SYSWELD was similar to the field actual measurements. The results of the temperature distribution of the weld joint give the accurate reserved area of flame retardant.

scholarly journals Temperature distribution in coastal aquifers: Insights from groundwater modeling and field data

2021 ◽  
Vol 603 ◽  
pp. 126912
Author(s):  
A.M. Blanco-Coronas ◽  
C. Duque ◽  
M.L. Calvache ◽  
M. López-Chicano
Keyword(s):  
Temperature Distribution ◽  
Coastal Aquifers ◽  
Field Data ◽  
Groundwater Modeling

Multiphase Transient Slugging Flow in Subsea Oil and Gas Production

2016 ◽  
Author(s):  
Zhenhua Zhang ◽  
Longbin Tao
Keyword(s):  
Data Analysis ◽  
Temperature Distribution ◽  
Numerical Model ◽  
Slug Flow ◽  
Field Data ◽  
Oil And Gas ◽  
Gas Production ◽  
Worst Case ◽  
Oil And Gas Production ◽  
Significant Difference

Slug flow in horizontal pipelines and riser systems in deep sea has been proved as one of the challenging flow assurance issues. Large and fluctuating gas/liquid rates can severely reduce production and, in the worst case, shut down, depressurization or damage topside equipment, such as separator, vessels and compressors. Previous studies are primarily based on experimental investigations of fluid properties with air/water as working media in considerably scaled down model pipes, and the results cannot be simply extrapolated to full scale due to the significant difference in Reynolds number and other fluid conditions. In this paper, the focus is on utilizing practical shape of pipe, working conditions and fluid data for simulation and data analysis. The study aims to investigate the transient multiphase slug flow in subsea oil and gas production based on the field data, using numerical model developed by simulator OLGA and data analysis. As the first step, cases with field data have been modelled using OLGA and validated by comparing with the results obtained using PIPESYS in steady state analysis. Then, a numerical model to predict slugging flow characteristics under transient state in pipeline and riser system was set up using multiphase flow simulator OLGA. One of the highlights of the present study is the new transient model developed by OLGA with an added capacity of newly developed thermal model programmed with MATLAB in order to represent the large variable temperature distribution of the riser in deep water condition. The slug characteristics in pipelines and temperature distribution of riser are analyzed under the different temperature gradients along the water depth. Finally, the depressurization during a shut-down and then restart procedure considering hydrate formation checking is simulated. Furthermore, slug length, pressure drop and liquid hold up in the riser are predicted under the realistic field development scenarios.

scholarly journals Finite Element Analysis of Temperature Distribution and Stress Behavior of Squeeze Pressure Composites

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
P. Gurusamy ◽  
T. Sathish ◽  
V. Mohanavel ◽  
Alagar Karthick ◽  
M. Ravichandran ◽  
...  
Keyword(s):  
Finite Element ◽  
Temperature Distribution ◽  
Cooling Rate ◽  
Base Alloy ◽  
Cast Alloy ◽  
Simulation Software ◽  
Engineering Industry ◽  
Effect Of Temperature ◽  
Cooling Curves ◽  
Squeeze Pressure

Aluminium-reinforced composites play a vital role in the engineering industry because of their better strength and stiffness. The properties are directly related to the solidification phenomenon of the cast alloy. The design engineer should understand the importance of the solidification behavior of base alloy and its reinforcement. Composites’ solidification study is rare, and the reviews are limited. The solidification process is analyzed using the finite element method (FEM), and this would fetch a lot of information about the cooling rate of the composites and also helps to reduce the time in experimentation. This paper reports and plots the cooling curves of Al/SiCp composites using simulation software. Cylindrical-shaped composites were developed using the squeeze casting method, and the experimental cooling curves were plotted using a K-type thermocouple. Composites samples were prepared at the following squeeze pressures: 0, 30, 50, 70, 100, and 130 MPa; melt and die temperature was kept constant at 800 and 400°C, respectively. The experimental and FEA cooling curves were compared, and it was agreed that the increase in the squeeze pressure increases the cooling rate of the developed composite. Furthermore, the effect of temperature distribution from the inner region of the melt and die material which causes the radial and tangential stress of components has also been examined.

A novel method improving the temperature uniformity of hot-plate under induction heating

2020 ◽  
pp. 095440622093630
Author(s):  
Wang Jin ◽  
Chen Xing ◽  
Yu Lu ◽  
Sun Baoshou ◽  
Dequn Li
Keyword(s):  
Temperature Distribution ◽  
Magnetic Flux ◽  
Surface Temperature ◽  
Heating Surface ◽  
Target Surface ◽  
Simulation Software ◽  
Test Method ◽  
Magnetic Flux Density ◽  
Hot Plate ◽  
Novel Method

In the paper, a novel method to improve the uniformity of the temperature distribution on the surface of the hot-plate is presented. Firstly, the effect of magnetic flux density under coupling of the electromagnetic and heat transfer on target surface temperature is studied numerically by using the commercial simulation software COMSOL Multiphysics. To evaluate the uniformity of the temperature distribution on the target surface, the temperature nonuniformity index on the target surface was firstly employed in terms of a specific designed electric coil. Secondly, the principal components analysis combined with the orthogonal test method is employed to analyze the shape parameters and obtain optimized temperature distribution at the target surface of the hot-plate. The simulated results show that the uniformity of temperature can be greatly improved by appropriately adjusting distribution of magnetic flux and the uniform temperature distribution can be achieved on a heating surface of 130 mm in length, 130 mm in width, and 30 mm in height. Finally, the optimizations of target surface temperature on hot-plate with different target temperatures were studied as well.

NUMERICAL SIMULATION OF THE PROCESS OF GEOTHERMAL LOW-POTENTIAL GROUND ENERGY EXTRACTION

2016 ◽  
Vol 3 (2) ◽  
pp. 0-0
Author(s):  
Александр Захаров ◽  
Aleksandr Zakharov ◽  
Андрей Пономарев ◽  
Andrey Ponomarev
Keyword(s):  
Numerical Simulation ◽  
Temperature Distribution ◽  
Thermal Energy ◽  
Simulation Software ◽  
Soil Conditions ◽  
Geometrical Parameters ◽  
Power Bases ◽  
Energy Foundations ◽  
The City ◽  
Ground Mass

The aim of our research is to study the interaction of energy foundations with the ground mass and to develop methods for their construction on the example of the city of Perm. Field studies of ground were carried out in a specially chosen pilot site to determine temperature distribution in the ground mass, change of ground-water level and physical-mechanical and thermal-physical characteristics of the ground mass. The diagrams of depth temperature distribution in the ground and its seasonal variations were obtained on the results of monitoring, and also the average groundwater level. To carry out numerical simulation, software-complex “GeoStudio” was selected. Its basic differential equation is the fundamental heat conduction equation with an internal heat source. The purpose of the numerical simulation was quantitative evaluation of the thermal energy extracted from different energy foundations under soil conditions in the city of Perm. By results of the spent numerical experiments the equations of regress and nomographs dependences of size of received thermal energy on geometrical parameters of the projected power bases to hydro-geological and climatic conditions of the Perm region are constructed

Dynamic Simulation on Longitudinal Temperature Distribution of Tunnel Ceiling Based on Moving Fire Source

2012 ◽  
Vol 610-613 ◽  
pp. 752-761
Author(s):  
Jun Deng ◽  
Shi Rong Li ◽  
Zheng Xin Yan
Keyword(s):  
Temperature Distribution ◽  
Dynamic Simulation ◽  
Natural Ventilation ◽  
Early Stage ◽  
Influential Factors ◽  
Simulation Software ◽  
Road Tunnel ◽  
Moving Vehicle ◽  
Fire Source ◽  
Longitudinal Temperature

Several tunnel fires were caused by the fire source loaded in moving vehicle. The physical model was designed based on real road tunnel to simulate the distribution of longitudinal temperature. Through fire dynamic simulation software FDS, the fire processes when moving vehicle stabilized and traveled at 10m/s and 15m/s in tunnel were simulated under natural ventilation of 2.7m/s. The purpose of research includes three aspects, first, the temperature field in the early stage when moving fire travels into tunnel; second, influence of moving fire on the longitudinal temperature distribution; third, explores the change of temperature peak and its influential factors when vehicles stops and combustion stabilizes. Simulation indicates that the airflow filed movement induced by moving fire to certain degree blocks the spread of heat released in the direction opposite to fire movement and it also entrains high temperature airflow into its movement. When ventilation direction is accordant with vehicle moving direction, the stabilized value of highest temperature point of ceiling tends to be higher than that when the directions are opposite.

Structural Optimization of Offshore Jacket Platform Based on ANSYS

2010 ◽  
Vol 163-167 ◽  
pp. 3029-3033 ◽  
Author(s):  
Qing Zhi Yan ◽  
Zhan Zhang ◽  
Liang Cui ◽  
Yan Hua Wang
Keyword(s):  
Structural Optimization ◽  
Oil Exploration ◽  
Exploration And Exploitation ◽  
Jacket Platform ◽  
Offshore Jacket Platform ◽  
Offshore Oil ◽  
Oil Exploration And Exploitation

Offshore Jacket Platform is a very important infrastructure in the offshore oil exploration and exploitation. In order to make it more economical, designers should do Structural Optimization to it. This paper do Structural Optimization to Offshore Jacket Platform, and provide reference for the using of ANSYS in the Structural Optimization of Offshore Jacket Platform.

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