Papers by Keyword: Storage Tank

Paper TitlePage

Authors: Lukáš Skalík, Otília Lulkovičová
Abstract: The energy demand of buildings represents in the balance of heat use and heat consumption of energy complex in the Slovak national economy second largest savings potential. Their complex energy demands is the sum of total investment input to ensure thermal protection and annual operational demands of particular energy systems during their lifetime in building. The application of energy systems based on thermal solar systems reduces energy consumption and operating costs of building for support heating and domestic hot water as well as savings of non-renewable fossil fuels. Correctly designed solar energy system depends on many characteristics, i. e. appropriate solar collector area and tank volume, collector tilt and orientation as well as quality of used components. The evaluation of thermal solar system components by calculation software shows how can be the original thermal solar system improved by means of performance. The system performance can be improved of more than 31 % than in given system by changing four thermal solar system parameters such as heat loss coefficient and aperture area of used solar collector, storage tank volume and its height and diameter ratio.
199
Authors: Fu Jun Liu, Li Wei Zhao, Yue Qiang Qian
Abstract: A double-layer structure of oil storage tank was proposed in this paper to overcome the shortcomings of existing oil storage tanks and its detection method. Using 93# gasoline, diesel and water as working medium, the leakage diffusion characteristic of tank floor was researched based on a experimental system. The research results testify the reliability and sensitivity of the experimental system. Furtherly, the influencing rule of leak positions and leak volume (Q) on the leakage diffusion was studied by using 93# gasoline. The results show that for the same amount of leakage, the leakage on the center of tank floor diffused quickly, was the most easily detected part; and that on the edge of the tank floor was the most difficult to be detected. For leakage occurred in same position, the volume fraction (φ) in pipeline increased with the increase of leakage. The result of research has a great significance for fastening localization of double bottom structure of oil storage tank.
487
Authors: Gary Martin, John Dimopoulos, John Cacic
Abstract: Acoustic Emission (AE) monitoring is an effective tool for prioritising more conventional non-destructive inspections of above ground tanks, either process or storage vessels. Results obtained from AE monitoring may be assessed against an existing data bank permitting plant management to prioritise maintenance to tanks with high active corrosion rates or leaks. AE results may be used to extend inspection periods of tanks without leaks or active corrosion. This paper covers the theory of AE leak detection and corrosion monitoring including some background research into the difference between AE from corrosion and leaks. It looks at the equipment used and provides a summary of tank test results conducted by ATTAR and other overseas organisations as well as reviewing AE tank inspection economics.
499
Authors: Gary Martin
Abstract: Acoustic Emission (AE) monitoring is an effective tool for prioritising more conventional non-destructive inspections of above ground tanks, either process or storage vessels. Results obtained from AE monitoring may be assessed against an existing data bank permitting plant management to prioritise maintenance to tanks with high active corrosion rates or leaks. AE results may be used to extend inspection periods of tanks without leaks or active corrosion.This paper briefly covers the theory of AE leak detection and corrosion monitoring including some background research into the difference between AE from corrosion and leaks. It looks at the equipment used and provides a summary of tank test results conducted by ATTAR and other overseas organisations as well as reviewing AE tank inspection economics.
445
Authors: Wei Li, Shao Fan Wang, Xin Jia
Abstract: This paper applied acoustic emission technology, monitoring low carbon steel uniform corrosion process, obtained low carbon steel corrosion acoustic emission signal in the process of uniform corrosion, And analyzed acoustic emission signal characteristics of the low carbon steel corrosion process applied the method combining characteristic parameters with wavelet packet transform, in the meantime combined the detection data of storage tank, Contrast acoustic emission signal characteristics of low carbon steel corrosion in experiment conditions and acoustic emission signal characteristics of storage tank corrosion in actual conditions, the result provides reference for acoustic emission research of low carbon steel uniform corrosion process and tanks online acoustic emission testing.
246
Authors: Xu Dong Zhang, Shuai Wang, Ran Gang Yu
Abstract: The settlement characteristics of storage tank foundation at water-filling preloading stage and stable loading stage was analyzed based on numerical simulation. And the influences of foundation soil parameters on the settlement of storage tank foundation were studied. The research results show that Uplift appears at the place 1.3D away from the center of oil tank bottom, and the final uplift value is 10mm.The main factor which influences the consolidation speed of storage tank foundation is permeability coefficient. The consolidation settlement is determined by compression modulus and load.
372
Authors: Yi Hu Huang, Hong Lei Chong, Man Hu, Xi Mei Jia, Wen Long Liu, Ji Xiang Ma
Abstract: The safety of the tank in duty is an important problem in engineering. Acoustic Emission testing is a dynamic online detection technology for non-destructive testing, which can provide continuous on-line status monitoring for equipments and give early damage warning. In the tank loading process, the sensors can detect the signals of the tank based on the principle of Acoustic Emission and determine the defect location. With this technology, we can monitor and evaluate the tank's safety in production.
561
Authors: Fan Bu, Cai Fu Qian, Xue Dong Chen, Tie Cheng Yang
Abstract: In this paper, buckling analysis was carried out on a super-large storage tank under uniform external pressure or wind pressure with finite element method. The critical pressures and buckling deformation modes are obtained and the effects of wind girders and reinforcing rings are investigated. It is found that the critical external pressure of the tank under uniformly applied external pressure obtained by the eigenvalue method is smaller than that obtained by the nonlinear method. Buckling only occurs on the windward side of the tank under the wind pressure. As strengthened by the wind girders and reinforcing rings at the upper par of the tank, buckling deformations here are much smaller than those at the lower part of the tank.
237
Authors: Ai Fang Wang, Qun Li, Xiu Lian Liu, Hong Guang Wang
Abstract: Because it is difficulty to collect field corrosion data,estimation of the remaining life of corroded tanks mostly adopts qualitative analysis. On the basis of the relationship curve of the corrosion depth and service time,according to the acquisition of corrosion data sample size,the paper used limited polyline to replace the corrosion curve,simplified the calculation of the remaining life of corroded tanks.
329
Authors: Jian Hua Liu
Abstract: According to GB150-1998, the standard of steel pressure vessel, determination method on design pressure and design temperature, material selection, tanks and the head design method and opening reinforcement calculation method was introduced. Running effects were in excellent condition after a few years of use. The design method of liquefied petroleum gas tanks was introduced in this paper had a guiding role on liquefied petroleum gas tank.
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