iosr-JMCE   Volume-16 ~ Issue-1 ~ Jan-Feb 2019

Abstract: Many liquid storage tanks around the world have affected by earthquakes. Seismic analysis of such tanks is much complicated due the Fluid-Structure Interaction (FSI). Furthermore, when the soil properties are taken into consideration, the analysis with the Fluid-Soil-Structure Interaction (FSSI) becomes very complicated and tedious. In this paper, a 3-D Finite Element (FE) model for a shallow rectangular rested on soil Reinforced Concrete (RC) tank is constructed using the FE software; ANSYS. Furthermore, a nonlinear dynamic time history analysis is carried out to investigate the behavior of this type of tanks during earthquake considering the FSSI. The vertical and the horizontal components of three ground motion records are used in the study with different frequency contents. Moreover, two different soil types are considered. The effects of the FSSI and the ground motions on the straining actions............

Keywords -Rectangular Tanks, Seismic, Fluid-Soil-Structure Interaction, Frequency Content, Time History Analysis

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[2]. American Society of Civil Engineers (ASCE), 2005. Minimum Design Loads for Buildings and Other Structures, ASCE 7, ASCE Standard, SEI/ASCE 7-02, Reston, VA.
[3]. ANSYS. V. 14.5. (2012) Swanson analysis systems Inc. Houston (Pennsylvania, USA).
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Abstract: Several studies were already carried out on the efficient use of energy in the past but little was done so far on the comparative study of energy and exergy for some manufacturing processes.To this effect, in this study, the compilation and analysis of data collected from a cement manufacturing plant in the North-Central region of Nigeriafor a period spanned from 2010 to 2014were conducted in order to study the variations of energetic and exergetic efficiencies in each unit of theproduction line of the plant. Consequently, the study revealedthat the overall energetic and exergetic..........

Keywords: Energy, energetic efficiency, exergetic efficiency, exergy analysis.

[1]. T.W. Choate, Energy and emission reduction opportunities for the cement industry (Industrial Technologies Programme, U.S Department of Energy, Energy Efficiency and Renewable Energy, 2003)
[2]. D. Ibrahim and M. A. Rosen Exergy, Energy, Environment and Sustainable Development, 2007)
[3]. .A. Rosen Comparison based on Energy and exergy analyses of the potential cogeneration efficiencies for fuel cells and other electricity generation devices, International Journal of Hydrogen Energy vol15 no 4 pp 267, 2015)
[4]. Duda W.H, Cement data-book (International Process Engineering in the cement industry 2ndEdition, 1997)
[5]. Canadian Lime Institute, Energy efficiency opportunity in the lime industry (Office of Energy Efficiency, Natural Resources Canada, Ottawa, ON 2001)

Abstract: In this study, conical ground and elevated tanks` seismic response has been investigated. This study has been motivated with the deficiency of data in design codes concerning conical tanks seismic analysis. Seismic analysis by American Water Works Association for welded steel tanks for water storage (AWWA D-100) or Egyptian code for loads (ECP201-2012) is based on an approximate method by using the mechanical analog of cylinder tanks by substituting the conical tank with an equivalent cylinder tank. 3D Finite element models have been modeled using added mass approach in order to represent the fluid-structure interaction. A previously established mechanical analog...........

Keywords: added mass approach;conical tanks; fluid-structure interaction; seismic analysis; seismic response

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[2]. Egyptian Committee for making Egyptian Code for estimating loads and forces in structural and construction works.Code number 201. Egyptian Code for estimating loads and forces in structural and construction works (2012).
[3]. LĠVAOĞLU, Ramazan & Doğangün, Adem. (2004). A simple seismic analysis procedure for fluid-elevated tank-foundation/soil systems,.
[4]. AmericanWaterWorksAssociation(AWWA).2005.Welded steel tanks for water storage, AWWA D-100. Denver, Colo. El Damatty, Ashraf & Sweedan, Amr. (2006). Equivalent mechanical analog for dynamic analysis of pure conical tanks. Thin-walled Structures - THIN WALL STRUCT. 44. 429-440. 10.1016/j.tws.2006.03.016.
[5]. LĠVAOĞLU, Ramazan & Doğangün, Adem. (2006). Simplified seismic analysis procedures for elevated tanks considering fluid–structure–soil interaction. Journal of Fluids and Structures. 22. 421–439. 10.1016/j.jfluidstructs.2005.12.004.