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629 articles for “Computation”
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Modeling of CSTR Reactor for Sodium Benzoate Production
Abstract: The mathematical model was developed for Continuous Stirred-Tank Reactor (CSTR) for the production of sodium benzoate from the reaction of sodium hydroxide and benzoic acid. The performance equation for the operation of CSTR was developed for the analysis of the reactor’s functional dimensions and parameters. The analysis of the reactor’s functional parameters was performed at molar ratio of benzoic acid to sodium hydroxide of 1.5 to 3.0 at intervals of …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 4, Issue 1, 2018 · pp. 38–50 Read article
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Prediction of Step Input Response on Pneumatic Proportional Derivative Controller. The Concept of Transfer Functions
Abstract: Computer programme language of MATLAB software was used to monitor, predict and simulated the characteristics of step input response on pneumatic proportional derivative controller with the concept of transfer functions. The prediction of step input response on pneumatic proportional derivative controller was examined using the concept of transfer function. A model equation was also developed to give account of the response of on pneumatic proportional derivative controller. The equation was …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 6, Issue 1, 2020 · pp. 35–44 Read article
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Investigation of Mass Transfer Coefficient and Gas Hold Up and Bubble Size Distribution in Novel Design of Stirred Tank Reactor
Abstract: Stirred tanks are commonly used in chemical industries for reaction and separation. Large-scale reactors include many impellers to improve mixing performance. Agitator plays an important role during the gas-liquid contact in two phase flow. And it is very necessary to know for the understanding of any gas-liquid system. So, in this study my motto is to study which parameters affects in the mixing of gas inside the liquid. The parameters …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 8, Issue 2, 2022 · pp. 5–12 Read article
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Laws of Thermodynamics Challenge Greenhouse-Gas and CLIMATE- change Hypotheses
Abstract: The greenhouse-gas hypothesis (GGH), i.e., CO2 is the cause of global warming by ~1K from ~1950-2023, is popularly believed to be established scientific truth. It is generally assumed that heat emissions from global fuel combustion are, by comparison, negligible. An application of the Hess-Gibbs 1st law of thermodynamics, however, shows that the enthalpy (H) output from yearly fossil fuel consumption is seven times greater than the H- increase of hypothetical …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 9, Issue 1, 2023 · pp. 7–19 Read article
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Correlation Between CBR Values and Index Properties of Soils
Abstract: Presently India’s infrastructure is growing rapidly. Large number of new urban and lightly trafficked roads are being constructed or planned. The California bearing ratio (CBR) is the well known, common and trustful test currently used in road construction. The CBR values are used by the engineers to design the thickness of pavement layer to be laid on the top of the sub-grade. Laboratory tests like consistency tests, standard proctor test …
Published in International Journal of Construction Engineering and Planning · Vol. 3, Issue 2, 2017 · pp. 18–21 Read article
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Strain-based Fatigue Test of Woven Glass-Epoxy Fabric Composites
Abstract: Strain based fatigue testing of Glass-Epoxy Composite Material in Tension-Tension loading is carried out by using positive load method to evaluate potential crack propagation, fiber fractures, de-laminations, etc. Through continuous stressing in the material, evaluation of life cycle capabilities of glass fiber composites are found which is essential for Research Development, Structural Design, Quality assurance, Modeling and finally Material Specifications. By using an epoxy resin with glass fiber prepared in …
Published in International Journal of Construction Engineering and Planning · Vol. 5, Issue 1, 2019 · pp. 39–55 Read article
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Selection of effective formwork system using multi criteria decision making analysis
Abstract: Formwork is the largest single cost item in constructing cast-in place reinforced concrete structure. This project focuses on analyzing the formwork selection problem based on decisive criteria. The factors affecting the choice of the exact formwork system have been often discussed in literatures but their importances have not been distinctly formulated. Therefore, a survey was conducted to recognize the decisive criteria in the formwork selection problems and ranking of the …
Published in International Journal of Construction Engineering and Planning · Vol. 5, Issue 2, 2019 · pp. 1–9 Read article
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Mathematical Model for the Predictionof Compressive Strength of High Performance Concrete (HPC) Containing Saw Dust Ash and Superplasticizer
Abstract: This paper examined the prediction of compressive strength of High Performance Concrete (HPC) containing Saw Dust Ash (SDA) and Conplast SP 430 (superplasticizer), using Osadebe’s regression theory.The model developed was tested for adequacy at 95 % level of confidence using F-Statistic and was found to be reliable. A computer program written in visual basic 6.0 based on the model formulated was invoked for quick prediction of the mix ratios corresponding …
Published in International Journal of Construction Engineering and Planning · Vol. 6, Issue 2, 2020 · pp. 15–28 Read article
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Condition Assessment of Structures Using Vibration Technique
Abstract: Structural Health Monitoring grasps the Promise for enhancing the structural performance with an outstanding cost/benefit ratio. Condition assessment is a technique used in health monitoring in the damage detection, to ensure the serviceability and the durability of the structures. In the present report, condition assessment of the structures using low frequency technique is being completed through experimental modal analysis and computational analysis software ANSYS 9.0 over structural elements beam and …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 3, Issue 1, 2017 · pp. 36–46 Read article
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A New Model for Prediction of Wellbore Stability Using the Three Dimensional Hoek–Brown Failure Criterion
Abstract: Wellbore stability is one of the crucial issues in oil and gas industries. The issues related to instability of wells, impose significant unwanted costs on drilling operation.The objective of this paper is to present the 3D-wellbore stability prediction models for vertical wellbores. The three dimensional Hoek–Brown strength criterion developed by Zhang and Zhu conjunction with linear poroelastic constitutive model is utilized to develop the models. This models leads to easily …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 3, Issue 2, 2017 · pp. 10–15 Read article
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Seismic Hazard Assessment of Dehradun City
Abstract: Seismic hazard assessment refers to an estimation of ground motion parameters at any site or region. In the present study seismic hazard assessment is performed for the Dehradun city which lies in a highly seismic region in the Himalayan foothills. Based on the seismicity data provided by IMD, New Delhi and Seismotectonic Atlas of India (GSI, 2000), seismicity was described and 24 seismotectonic sources were identified in the study area. …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 4, Issue 1, 2018 · pp. 6–12 Read article
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Optimization of Compressive Strength of Segmental Interlocking Stones
Abstract: The failure of most segmental interlocking stones used as pavement materials is traceable to lack of knowledge of the mix ratios that would optimize the compressive strength of the end products. In this study, the compressive strength was optimized based on Scheffe’s simplex lattice approach. The reliability of model developed was investigated using F-statistic and was found to be adequate. A computer program written in basic language was used to …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 4, Issue 2, 2018 · pp. 1–7 Read article
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Strength of Soil below RC Frame Subjected to Seismic Forces
Abstract: Present study focusses on the dynamic behavior of Soil below reinforced concrete frames considering soil structure interaction by performing linear static and dynamic analysis. A reinforced concrete frame having G+10 storey was considered. The investigation on the behavior of RC frame is carried out by using dynamic analysis i.e., Response Spectrum method. The modeling of RC frame is carried out by using finite element-based computer program i.e., STAAD.Pro. The investigation …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 7, Issue 2, 2021 · pp. 35–42 Read article
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Dynamic Response of Reinforced Concrete Frame Considering Soil Structure Interaction
Abstract: Present study focus on the dynamic behavior of reinforced concrete frames considering soil structure interaction by performing linear static and dynamic analysis. A reinforced concrete frame having G+10 storey was considered. The investigation on the behavior of RC frame is carried out by using dynamic analysis i.e., Response Spectrum method. The modeling of RC frame is carried out by using finite element-based computer program i.e., STAAD.Pro. The investigation is carryout …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 7, Issue 2, 2021 · pp. 9–16 Read article
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Structural Optimization Using Structural Elements Locations In RCC Staircase
Abstract: This paper presents a comparative study of the structural member’s configuration in design economy by considering the alternate arrangement of the structural components in a stare- case design optimization. Three different types of stair namely beamless & slab less stair, doglegged stair with central beam and stair with beams at both ends (traditional stair) is considered here. The structural behaviour is different for each case. An optimize depth for all …
Published in International Journal of Structural Engineering and Analysis · Vol. 1, Issue 1, 2015 · pp. 1–8 Read article
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ANALYSIS AND DESIGN OF RECTANGULAR AND L-SHAPED COLUMNS SUBJECTED TO AXIAL LOAD AND BIAXIAL BENDING
Abstract: Next to rectangular and circular columns, L-shaped columns may be the most frequently encountered reinforced concrete columns, since they can be used as a corner column in framed structures. The behaviour of irregular shaped reinforced concrete columns has been a constant concern for a structural engineer, to design a safe and economic structure in modern buildings and bridge piers. L-shaped reinforced concrete column subjected to biaxial bending and axial compression …
Published in International Journal of Structural Engineering and Analysis · Vol. 2, Issue 1, 2016 · pp. 15–22 Read article
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Seismic Behavior of Soft Storey Building with Static and Dynamic Earthquake Loading
Abstract: Soft first storey is a typical feature in the modern multi-storey constructions in urban India. Though multi-storied buildings with soft storey floor are inherently vulnerable to collapse due to earthquake, their construction is still widespread in the developing like India. Functional and Social need to provide car parking space at ground level and for offices open stories at different level of structure far out-weighs the warning against such buildings from …
Published in International Journal of Structural Engineering and Analysis · Vol. 2, Issue 2, 2016 · pp. 1–7 Read article
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Finite Element Modeling of RC Beam Column Sub-assemblages Subjected to Column Loss Scenario
Abstract: Progressive collapse is a situation where a failure of whole or large part of a structure occurs that has been initiated by failure of a relatively small part of the structure such as failure of any primary structural element. When a vertical load carrying element, typically a column is lost, the loads that are supposed to pass through lost column need to be safely transferred to the adjacent elements to …
Published in International Journal of Structural Engineering and Analysis · Vol. 6, Issue 2, 2020 · pp. 1–20 Read article
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Prediction of Circular Frequency of Precast Concrete Piles with Distributed Mass by Resonance Moment–Displacement Approach
Abstract: This paper presents the results of circular natural frequency of single piles from critical buckling load by resonance moment-displacement approach. The support end conditions considered are pinned-pinned, fixed-fixed, and fixed-pinned respectively. It was assumed that resonance moment occurs when the bending moment diagram is made equal to zero at the supports while the resonance displacement is the sum total deflections resulting from the system reduction to an equivalent pinned-pinned system. …
Published in International Journal of Structural Engineering and Analysis · Vol. 6, Issue 2, 2020 · pp. 55–61 Read article
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Behavior of RC Frame considering Soil Structure Interaction Under Seismic Load
Abstract: Present study focus on the behavior of reinforced concrete frames considering soil structure interaction by performing linear static and dynamic analysis. A reinforced concrete frame having G+10 storey was considered. The investigation on the behavior of RC frame is carried out by using dynamic analysis i.e., Response Spectrum method. The modeling of RC frame is carried out by using finite element-based computer program i.e., STAAD.Pro. The investigation is carryout by …
Published in International Journal of Structural Engineering and Analysis · Vol. 7, Issue 2, 2021 · pp. 1–9 Read article