COMPUTER -AIDED DESIGN OF OIL AND GAS VESSEL TANK IN PROCESS INDUSTRY IN NIGERIA (original) (raw)

Design and Development of a 10 Million Liters Capacity Petroleum Product Storage Tank

In Nigeria, the demand for petroleum products are on the increase and the need for reliable and safe storage facilities is on increasing demand.This has called for indigenous design and development of these facilities to augment the existing ones, and hence, to conserve foreign exchange and enhance job creation. In this work attempt has been made to designastorage tankcapable of holding a 10 million liter of DPK, PMS and AGO.Appropriate design codes and standard are applied, an adequate design method is chosen, and material selection was donein consonance with the requirements of the recent editions of API 650 and IS 803. Design specificationsand Sketches of the storage tank are presented. Fabrication and erection procedures, examination, inspection and maintenance routine for the tank are given.It was found that, the nominal diameter is 42m without space constraint, height is 7.2 m, number of course is 4, and height of each course is 1.8m. Also, the thickness of each course of tank shell is in the order of 14mm, 12mm, 10mm and 8mm from bottom. The bottom and annular plate thickness are 10mm and 12mm respectively. Carbon steel A36 material was selected for the design. The overall weight of the tank is 541,747.10kg, which is found to be stable without anchorage.

Design Construction and Testing of a Petroleum Product Storage Tank 10 Million Litre Capacity

European Journal of Engineering Research and Science, 2017

The purpose of this paper is to design a 10 million litre capacity petroleum storage tank for use in the oil industry in Nigeria with a view to overcoming the challenges associated with the loss of product due to evaporation. The tank having diameter and height of 27.4m and 17.5m respectively was designed to have two relief valves; a primary valve which would ensure that the product vapour pressure within high-level (h2) in meters of the storage tank does not exceed the minimum acceptable pressure. The second relief valve is designed to relief due to a sudden increase in pressure as a result of a possible fire in the tank. To this end, the design made reference to the American Petroleum Institute Manual 650 (12th Edition) as a guide. Some fundamental considerations include tank shape, height, diameter and materials used. A corrosion allowance of 3mm was also considered.

Analysis and Economical Design of Water Tanks

Storage reservoirs and water tanks are used to store water, liquid petroleum, petroleum products and similar liquids. The force analysis of the reservoirs or tanks is about the same irrespective of the chemical nature of the product. All tanks are designed as crack free structures to eliminate any leakage. This project gives the detailed analysis of the design of liquid retaining structure using working stress method. The project takes into consideration the design of reservoir for the following cases: 1) Underground Tank, 2) Tank Resting on ground and 3) Overhead water tank. The analytical design has been made with Microsoft Excel sheet. The paper gives idea for safe design with minimum cost of the tank and give the designer relationship curve between design variable. Thus design of tank can be more economical, reliable and simple. The paper helps in understanding the design philosophy for the safe and economical design of water tank.

Cost Reduction of Cylindrical Steel Oil Storage Tanks

With the growing demand for strategically storing bulk liquids, the cost of the storage tanks gained large importance. This cost has the greatest influence on the overall projects' cost. Hence, reducing the price of a tank is of prime importance. In this sense, the shell design, specifically the thickness of the different shell courses, play an important role along with steel plate specifications and the Manpower that it takes for construction. In this paper, parametric studies with respect to the specifications of steel plates and needed Manpower to construct the shell are performed. Different shell diameters are taken into consideration and the analysis is performed according to API 650 Standard.

Analysis and Design of OIL STORAGE STEEL TANK

Chapter one: presents a general introduction to the subject of Oil Storage Tank. Chapter two: presents the previous literatures published about this subject. Chapter three: presents the theoretical bases for the Matrix analysis method and Oil Storage Tank design. Chapter four: presents a brief description of a computer program developed in this study. Chapter five: discuses the results of this Analysis/Design method. And recommend future steps.

Design of Liquid-Storage Tank: Results of Software Modeling vs Calculations According to Eurocode

Elektronički časopis građevinskog fakulteta Osijek

The objective of this article is to show the design process of a liquid-storage tank shell according to Eurocode and compare the results obtained using the norms with those from a finite element method (FEM) analysis. The calculations were performed for an aboveground vertical steel water-storage tank with a variable thickness wall and stiffening ring on top. First, the types of liquid storage tanks are briefly explained. Second, the given tank is described. Third, an analysis of the tank wall according to the Eurocode was carried out. The FEM analysis was performed using the Scia Engineer ver. 17 software. Finally, all the results are presented in tables and compared.

STRUCTURAL AND ECONOMICAL OPTIMIZATION OF WELDED STEEL STORAGE TANKS

With the growing demand for storage of bulk liquids in the industries of oil and gas, petrochemical, chemical, steel, cellulose, environmental control, food and others, the storage facilities increase their influence in the overall cost of projects. Assessment is made for factors such as structural, physical, geometrical and economical that affects the optimization for lower weight of atmospheric above ground welded steel tanks, made from carbon steel, for the storage of liquids. Through a software, it is determined, for several volumes stored, how the optimization leads to lower cost of tanks considering the diameter, height, thicknesses of shell plates along the height, structure for roof support, fabrication, erection and other factors. It is also analyzed the support for the decision on the optimal quantity of tanks for a given volume, specifying if it is preferable more tanks with less volumes or less tanks with higher volumes. The analyzed tanks are designed according to API 650 Standard 11 th Edition.

Economic Design of Water Tank of Different Shapes With Reference To IS: 3370 2009

The conventional method of designing water tanks which is working stress method outlined in the previous version of IS: 3370 1965 is irrational and leads to relatively thicker sections with a substantial amount of reinforcement. Limit state method which is widely used has been recently adopted in the new version of IS 3370-2009 concrete structures for storage of liquids – code of practice. For quick cost prediction of tanks, this study therefore examines the cost effectiveness in terms of amount of materials and formwork used for Circular, Square and Rectangular overhead water tanks each of three capacities of 100kl, 150kl, 200kl and draw reasonable inferences on tank’s shape design effectiveness . Each water tank was designed by Limit State method and then the crack width was checked by limit state of serviceability IS 3370 (2009). The results have been presented in the form of graphs and tables and it has been observed that Circular-shaped tank consumed lesser of each material as compared to Square and Rectangular ones. The amount of formwork required for circular tank is also less than that for square and rectangular tanks thereby giving Circular-shaped tanks a more favorable selection over the rectangular and square shaped tanks

CHEMICAL ENGINEERING TRANSACTIONS Stress Analysis of Deformed Storage Tank Shell

Shell plate material deformations appeared when storage tank operation. Material deformations were significant and may affect the loss of stability for the future operation. The assessment was made on the basis of performed measurements for examination the strength of existing deformations in the current wall thicknesses. Corrective actions and optimal method of operation including regular inspections was proposed. According to the measurements taken were assessed major geometry deformations. These deformations were subjected to a detailed stress analysis and assessed in terms of standards in use. Storage tank design Analysed tank is used for storage of fuel oil needed for energy industry or for storage of heavy hydrocarbons needed for petrochemical industry. The current operating level of the liquid is kept at a height of 8.5 m and the operating temperature is 90 °C. The inner diameter of the storage tank is 24 m and the height of the cylindrical shell is 12 m. The wall thicknesses of the individual shell parts are according drawings between 8 to 20 mm Values of main dimensions are illustrated at Figure 1. Figure 1: Scheme of analysed storage tank shell design