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1475 articles for “Performance”
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Experimental-based Study of Justicia carnea and Moringa oleifera Extract on Crude oil Remediation of Contaminated Loamy Soil
Abstract: This study was carried out to investigate the comparison of the performance of Justicia carnea and Moringa oleifera plants extract treated with direct sunlight and the absence of sunlight on the bioremediation process of crude oil contaminated loamy soil. Total petroleum hydrocarbon degraded,total microbial count, pH, amount of nitrogen, phosphate, and potassium, soil total organic carbon, total soil organic matter were examined. Twenty one (21) batch reactors were used for …
Published in International Journal of Environmental Chemistry · Vol. 7, Issue 2, 2021 · pp. 7–23 Read article
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Stability Analysis of Mahua Seed and Waste Polystyrene Co-pyrolytic Oil
Abstract: Biomass pyrolytic oil is a complex mixture of organic compounds and obtained in a non-equilibrium state. Hence, the physical properties of bio-oil such as calorific value, viscosity, pH, density, flow ability and chemical compositions vary during storage. In this study, co-pyrolysis of Mahua seed was performed with waste polystyrene and studied the fuel properties and composition. The co-pyrolytic oil was produced at 2:1 ratio of seed to waste polystyrene using …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 2, Issue 1, 2016 · pp. 1–7 Read article
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Isothermal CSTR Heat Exchanger Rating Models for Acetic Acid Production using Homogeneous Catalysed Reaction
Abstract: This work deals with the development of design models for heat exchanger rating in homogeneouscatalytic acetic acid production at isothermal condition exploiting the derived continuous stirred tankreactor heat generation per unit volume equations at constant temperature. Coil in tank heatexchanger is invoked for this study resulting to novel design equations which were stochasticallyexamined and found to be capable of simulating the rating performance dimensions as a function ofkinetic parameters. The …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 7, Issue 1, 2021 · pp. 14–28 Read article
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Thermodynamic Optimization of Renewable Energy Processes
Abstract: In the pursuit of sustainable energy solutions, the thermodynamic optimization of renewable energy processes plays a crucial role in enhancing efficiency and reducing environmental impact. This paper explores the principles and methodologies involved in optimizing various renewable energy systems, including solar, wind, biomass, and geothermal energy. By leveraging the fundamentals of thermodynamics, the study examines key parameters and performance indicators to identify optimal operating conditions and design configurations. The analysis …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 9, Issue 2, 2023 · pp. 31–37 Read article
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A Study on Mechanical Properties and Fracture Behavior of Chopped Fiber Reinforced Self-Compacting Concrete
Abstract: The development of self-compacting concrete (SCC) is innovatory landmark in the history of construction industry resulting in predominant usage of SCC worldwide nowadays. It has many advantages over normal concrete in terms of enhancement in productivity, reduction in labor and overall cost, excellent finished product with excellent mechanical response and durability. Further, incorporation of fibers enhances its properties specially related to post crack behavior of SCC. Hence, the aim of …
Published in International Journal of Construction Engineering and Planning · Vol. 3, Issue 1, 2017 · pp. 90–122 Read article
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To Study Mechanical Properties of Concrete by Using Industrial Waste Material
Abstract: Concrete is a very important material with cement, water, aggregate and admixture as contents. Due to increasing pollution and demand of concrete, its production should be environmental friendly. In this study, we emphasize on environment friendly concrete. The proportion of silica fume was as follows: add 3%–15% in interval of 3% by weight of cement in concrete and fly ash was add 5%–25% in interval of 5% by total weight …
Published in International Journal of Construction Engineering and Planning · Vol. 5, Issue 1, 2019 · pp. 18–27 Read article
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Application of Grouted Mechanical Couplers in Accelerated Bridge Construction
Abstract: This paper presents two research projects that investigated the performance of the grouted coupler connection details developed for accelerated bridge construction applications. The goal of the first project was to conduct laboratory test and evaluation of the grouted rebar coupler connections similar to those utilized on the Keg Creek Bridge on US Highway 6, the first replacement bridge in Iowa constructed entirely with modular and accelerated bridge construction technologies. The …
Published in International Journal of Construction Engineering and Planning · Vol. 8, Issue 1, 2022 · pp. 32–48 Read article
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Procurement and Deployment of Equipment for Contracts in Civil Engineering Construction
Abstract: Many contracts have suffered a lot of delays and have faced challenges due to procurement-related matters and inadequate manpower to handle equipment for optimal performance. This study was aimed at the procurement of equipment and utilization of machines in civil engineering contracts. Methodology is basically site visitation, literature review and discussion with engineers, experts and workers on site. Parameters are liable for the procurement of materials and utilizing their lead …
Published in International Journal of Construction Engineering and Planning · Vol. 8, Issue 2, 2022 · pp. 29–37 Read article
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Abrasion resistance, compressive strength and elasticity modulus of recycled aggregate concrete (RAC) included lower quality recycled aggregate with and without silica fume
Abstract: The usage of recycled aggregate (RA) for concrete works is spreading for gaining wide acceptance around the world, and total amount of RA utilized in concrete industry increases day-by-day. RA is used in many concrete products, such as concrete interlocking blocks, pavements, etc. One of the physical causes of concrete deterioration is surface wear or loss of mass for concrete products which are especially exposed to vehicular traffic (i.e., industrial …
Published in International Journal of Concrete Technology · Vol. 2, Issue 1, 2016 · pp. 1–18 Read article
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Susceptibility Behaviour of Asphalt Concretes Under Varying Mix Temperature Conditions: Study on Stability and Flow
Abstract: Understanding the behaviour of flexible pavements synonymous with asphalt concretes is one that can be complex due to the make-up of the pavement (asphalt concrete) and the external factors that impedes its performance from production stage to service life. The present study had considered one of the most damaging factors to asphalt concrete – mix temperature; and its effect on some of the mix design properties of asphalt concrete that …
Published in International Journal of Concrete Technology · Vol. 3, Issue 1, 2017 · pp. 1–7 Read article
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Effect of Alccofine on Durability Properties of Concrete
Abstract: Alccofine is a mineral admixture use in concrete for production of workable and durable concrete. It is effective in all belongings of concrete in fresh and hardened state. In this study alccofine 1203 used for inspection the characteristics of concrete in aspects of durability. Alccofine 1203 obtained from Ambuja cement plant in the form of fine powder. The percentage of alccofine mixed in concrete as 3-15% in interval of 3% …
Published in International Journal of Concrete Technology · Vol. 6, Issue 1, 2020 · pp. 23–31 Read article
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Modeling Concrete Tensile Strength from Fly Ash and Alccofine as Partial Replacement for Cement
Abstract: Tensile strength development were carried applying derived modeling and simulation, this study is to monitor the behaviour of the material in tensile state, Several materials has been used as modifiers or partial replacement, but the application of alccofine as a micro-fine materials has not been thoroughly applied by experts, this product has fine particles that is more finer than cement including other materials, the tensile strength behaviour from the studies …
Published in International Journal of Concrete Technology · Vol. 6, Issue 2, 2020 · pp. 22–38 Read article
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Experimental Investigation of Concrete Properties for Strength and Durability with Partial Replacement of Mixture of Nano-Silica
Abstract: This study explores the effects of partial cement replacement with nano-silica on theproperties of concrete, focusing on both strength and durability aspects. Compressive strengthtests were conducted at two key ages, 7 days and 28 days, to evaluate the concrete's performanceunder various conditions. The nano-silica was introduced into the concrete mix at three differentpercentages: 0.3%, 0.6%, and 1% by weight of the cement content. Our experimental findingsindicated a remarkable enhancement in …
Published in International Journal of Concrete Technology · Vol. 9, Issue 2, 2023 · pp. 1–7 Read article
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FLUENT ANALYSIS ON EARTH HEAT EXCHANGER WHERE AIR AS A FLOW MEDIUM
Abstract: Renewable energy is the best source of energy. It is abundant in nature, it’s just like a gift of god. Nowadays, heating and cooling is a major issue in environment due to global warming. A major part of energy is being engaged in such issues. So Earth tube heat exchanger is a renewable source of energy for heating and cooling of any building. Here, in this study we will perform …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 5, Issue 2, 2019 · pp. 43–68 Read article
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Estimation of Burden Rock Movement using High Speed Videography: Case Study of A Limestone Mine
Abstract: In an opencast mine involving hard rock/deposit excavation, blasting becomes a very important activity. Effective usage of explosive energy to fragment and displace the hard strata results in considerable savings. However, the occurrence of blasts in mines is so rapid that the naked eye cannot detect the process. High speed videography can provide the progress of blast in millisecond time scale needed to analyze the happenings in the blast. An …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 8, Issue 1, 2022 · pp. 14–25 Read article
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Assessment of Project Cost Control Strategies in the Nigerian Construction Industry – A Case Study of South West Nigeria
Abstract: The construction industry is a major consumer of capital resources by virtue of the magnitude, complexity and nature of works it executes. Yet improving cost performance still remains a chronic challenge facing the construction industry worldwide. Apart from advance made by contractors to devise mechanism to manage project cost, studies across the world reveal that construction projects are hardly completed within budget. However this background is considered unhealthy for an …
Published in International Journal of Structural Engineering and Analysis · Vol. 2, Issue 1, 2016 · pp. 32–42 Read article
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A Review Study on Comparative Seismic Analysis of Irregular Shaped Multi-storeyed Structure With and Without Infill
Abstract: In this study, we focused on the behavior of infill wall and plan irregularity on seismic performance of multi-storeyed high rise structure during various earthquake ground motions. A mostly L shaped structure; residential type structure with 15 storeys has been modelled with all its parameters. This structure includes four lifts/wells in its entire plan at mid-section and parking is provided at the base storey. A regular plan with the same …
Published in International Journal of Structural Engineering and Analysis · Vol. 3, Issue 1, 2017 · pp. 45–56 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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Structural Behavior of Cold Form Steel Truss
Abstract: This paper presents analytical observation results on the performance of Cold Formed Steel Truss and Hot rolled Steel Truss. Two trusses of same dimensions and same type with different materials have been studied and compared. Both the materials are compared on the basis of “fast, better and economic construction”. One truss is completely designed and analyzed in Hot rolled steel while the same model is designed in Cold Formed steel. …
Published in International Journal of Structural Engineering and Analysis · Vol. 7, Issue 1, 2021 · pp. 16–23 Read article
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MODAL ANALYSIS OF CONVENTIONAL RCC STRUCTURE WITH STEEL BRACING
Abstract: It is a well-known fact that high rise reinforced structures are vulnerable to lateral loadings from things like earthquake and wind stresses. Bracing systems have the excellent benefit of adding just a tiny amount of bulk to the structure while significantly enhancing its performance. Building modelling is done both with and without a bracing system in this study. Analysis that is both linear and dynamic is being done. The structure …
Published in International Journal of Structural Engineering and Analysis · Vol. 9, Issue 1, 2023 · pp. 48–62 Read article