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1019 articles for “IEEE802.11”
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Organic Solar Cells: A Technological Review
Abstract: In today’s technologically advanced era, our society needs an eco-friendly technology that is efficient and at the same time has low manufacturing cost. Solar energy is one of the major sources of renewable energy entering the earth’s atmosphere in bulk. It is a fact that the amount of solar energy lighting up the earth’s land mass over a year is around 3000 times the total amount of annual human energy …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 8, Issue 1, 2017 · pp. 18–22 Read article
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Thermal and Thermoelectric Generation Using Geothermal Energy Extraction Through Cogeneration System
Abstract: The manuscript has focused on the evaluation of the improvement of energy efficiency in using geothermal energy for heat and electricity generation through additional thermoelectric production to conventional heat transfer processes. The proposed system uses Peltier rings made up of a serial and parallel Peltier cells grouping, as part of the upward and downward ducts that connect the geothermal heat exchanger and the surface heating system. The new system can …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 11, Issue 1, 2020 · pp. 58–71 Read article
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Mapping the Vulnerabilities of Coastline Cities and Communities in Africa to Adapt to Climate Change: A Study of Lagos-Nigeria
Abstract: The Lagos coastline is active in nature and is located about less than six feet above sea level and houses about half of 15 million people in Lagos state, and is vulnerable to changes in coastline due to flooding and erosion. Climate change has aggravated this; sea-level rise will increase the risk of storm surge flooding, and coastal erosion threatening coastal cities. The annual rainfall along the coastline of Lagos …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 11, Issue 1, 2020 · pp. 44–57 Read article
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Hybrid PV-PCM System to Increase Efficiency
Abstract: AbstractThis paper studies a hybrid design for the photovoltaic industry made up of a conventional photovoltaic panel and a Phase Change Material (PCM) to increase the efficiency of the panel as well as to generate thermal energy. The system has been based on thermal transfer from the PV panel to the PCM through direct contact, thus reducing the operating temperature of the panel and improving its efficiency. The system operates …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 11, Issue 2, 2020 · pp. 15–26 Read article
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Development and Performance Assessment of a Prototype Zeer-Pot Refrigerator
Abstract: AbstractThe energy deficient rural areas in several parts of the world are not yet fully electrified are devoid of facilities like refrigeration and thereby limiting the applicability of refrigeration and allied processes. Development of a refrigerator or refrigeration method that needs little to no electricity has been an interesting topic of concern for researchers all over the world and the various investigations among them has reported the effect of evaporative …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 11, Issue 2, 2020 · pp. 41–45 Read article
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An Evaluation of Climate-Resilient Urban Transport System Using Climate Change Scenario in Lagos Metropolis, Nigeria.
Abstract: Abstract The objective of this project is to provide transit professionals with information and analysis relevant to adapting [1] transportation assets and services to climate change impacts. Climate impacts such as thermal discomfort and flooding will hinder agencies’ ability to achieve goals such as attaining a state of good repair and providing reliability and safety. The report examines anticipated climate impacts on Lagos transit and current climate change adaptation efforts …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 11, Issue 2, 2020 · pp. 1–14 Read article
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Modeling Cogeneration System in Shallow Geothermal Installations
Abstract: This paper presents a theoretical modeling of a cogeneration system using multiple heat exchangers and thermoelectric generator. The modeled system, designed for shallow geothermal energy, is a closed piping unit containing water as heat transfer fluid that circulates through a closed loop releasing thermal energy at the surface for heating and sanitary hot water. In addition, a Peltier cells array is attached to the piping system to generate electricity, thus …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 11, Issue 3, 2020 · pp. 13–23 Read article
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Study of Green Roof Tops in India
Abstract: The goal is a testament to the general public, professionals and government institutions of the benefits that green roofs have on quality of life in an urban environment in India. It willfocus on the significance of green roofs as insulating material and their role in mitigating the carbon footprint of the buildings through a drastic reduction of energy inputs for their conditioning alongside the management of storm-water.Keywords: Green roof top; …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 11, Issue 3, 2020 · pp. 38–42 Read article
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Production of Cellulosic Biofuel by using Different Pretreatment Process
Abstract: The production of Biofuels is increased by 20% since 2017. Cellulosic biomass is natural and abundantly available material for biofuel production in India. The major source of Biofuel is lignocellulosic waste and the most non-feeding productive crop is cotton in India. Bioethanol production can be achieved using the cotton stalk as raw material because cotton stalk contains a high amount of cellulose (>50%). Among the all process pretreatment process is …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 11, Issue 3, 2020 · pp. 33–37 Read article
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A SIMULATION STUDY OF THE EFFICIENCY OF HIGH VOLTAGE α-Si STAND-ALONE PV INSTALLATIONS
Abstract: The paper analyzes different configurations, direct-PV, PV-battery, either with PWM or MPPregulator, and hybrid-PV, of stand-alone PV installation operating with high voltage α-Si panels thatsupplies energy to a DC-AC external circuit. Global efficiency is determined as a function of voltageconversion ratio and individual element efficiency. The paper concludes that direct-PV is the mostefficient mode with average performance ratio (PR) of 92.2% followed by PV-battery with MPPT,68.3% of efficiency, and PWM …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 12, Issue 2, 2021 · pp. 1–11 Read article
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A Review on Solar Energy in India
Abstract: Sun-powered energy a clean renewable asset with zero outflows has got a huge potential for energy which can be tackled by employing a variety of gadgets. With later improvements, sun-orientated energy frameworks are effectively accessible for industrial and household utilization with the included advantage of minimum maintenance. With the help of government charge incentives and discounts, solar energy may become economically viable. The majority of developed countries are converting to …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 13, Issue 3, 2022 · pp. 22–27 Read article
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Challenges of RERA: An analysis of New Reforms
Abstract: AbstractMaking it into the list with names like The United States of America, Germany, China,Singapore and UAE, India has finally received a green light. In contrast, where a developed country like US had it implemented in 1974, the time lag of 42 years in India raises a number of questions. After a long wait of 9 years, Real Estate Regulation and Development act, 2016 (RERA) has eventually come into force. …
Published in Journal of Construction Engineering, Technology & Management · Vol. 7, Issue 3, 2017 · pp. 11–16 Read article
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Geotechnical Assessment and Stabilisation of Lateritic Soils in Tarkwa Using Rice Husk Ash for Road Construction Purpose
Abstract: The cost effectiveness of upgrading gravel roads to a sealed standard has challenged road authorities to make optimum use of naturally occurring materials such as laterites as sub-base and base materials. Untreated laterites have presented problems such as pavement swelling and depression in road construction. This research seeks to assess and stabilise the geotechnical properties of some lateritic soils in Tarkwa using Rice Husk Ash for road construction purposes. Lateritic …
Published in Journal of Construction Engineering, Technology & Management · Vol. 9, Issue 1, 2019 · pp. 6–16 Read article
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Economic Sustainability of Transportation Infrastructure Procurement: The Differing Site Condition Clause Debate as an Underlying Environmental Trigger to Cost Overruns
Abstract: Case law is rife with contractual disputes arising due to lack of adequate geotechnical risk containment during procurement. The use of a ‘Differing Site Conditions (DSC) clause’, implies that, in the event of encountering a subsurface/geo-environmental condition different from that which was indicated in the contract, the owner bears the additional cost for executing the work under such conditions. However, the literature indicates a divergence in industry practise, with some …
Published in Journal of Construction Engineering, Technology & Management · Vol. 10, Issue 1, 2020 · pp. 11–19 Read article
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Finite Element Analysis and Validation of Axial Capacity of RC Columns Made of Steel Fiber Reinforced Concrete (SFRC)
Abstract: Steel Fiber Reinforced Concrete (SFRC) possesses many excellent dynamic performances such as; high resistance to explosion and penetration. It has little effect on pre-cracking behavior in uniaxial compression, but substantially enhances its post cracking response. This response leads to a greatly improved ductility and toughness. Steel fibers in SFRC are capable of preventing crack propagation as well as brittle failure of columns under uniaxial compression. To this end, four reinforced …
Published in Journal of Construction Engineering, Technology & Management · Vol. 5, Issue 2, 2015 · pp. 9–14 Read article
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Isogeometric Topology Optimization of Continuum Structures using Evolutionary Algorithms
Abstract: Isogeometric analysis is a popular method for the analysis of problems involving complex geometry and governed by differential equations. Meta-heuristics are widely used to determine the optimum distribution of material within the given design domain. The focus of this study is to perform isogeometric topology optimization of continuum structures using meta-heuristics nature inspired firefly algorithm. NURBS basis functions are used to construct the geometric model and to calculate the displacements …
Published in Journal of Experimental & Applied Mechanics · Vol. 8, Issue 3, 2017 · pp. 8–18 Read article
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Experimental Investigation of Effect of Temperature and Molarity on Compressive Strength of Geopolymer Concrete
Abstract: Geopolymer concrete is a relatively new development in the field of concrete, in which regular Portlandcement is completely replaced with pozzolanic material such as fly ash, which is then activated by astrongly alkaline solution to function as a binder in the mix. As a result, we must manufactureenvironmentally friendly concrete to address issues such as global warming and CO2 emissions intothe atmosphere generated by standard Portland cement production. An experimental …
Published in Journal of Experimental & Applied Mechanics · Vol. 12, Issue 3, 2021 · pp. 34–39 Read article
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Computer Aided Circuit Design for Diagnosis of Dust Impact on Solar Panels
Abstract: AbstractSolar panels have come up as a promising methodology for extracting solar energy and yielding electricity. However, there exist many barriers in its path to become an indispensable part of today's era. The decreasing panel efficiency due to several factors such as temperature, irradiance, photoactive material, dust, panel orientation, is an issue of concern. Amongst these, dust is the least acknowledged, yet the most crucial parameter responsible for deteriorating panel …
Published in Journal of Electronic Design Technology · Vol. 9, Issue 3, 2018 · pp. 11–16 Read article
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Speed Control of Automobiles using Seat Belt
Abstract: AbstractAs according to the statistics of present situations there are many road accidents happening, and the reason for the cause is carelessness while driving. A survey report states that a total of 22,441 passengers died due to vehicle crash in 2015 as the occupants were unrestrained during the incident. In these statistics, greater than half were teenagers of 13-19 years (range between 52% and 59%) and the rest were adults …
Published in Journal of Electronic Design Technology · Vol. 11, Issue 1, 2020 · pp. 27–32 Read article
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Comparative Analysis of Solar PV System Employing Multiaxis Solar Tracking Mechanism
Abstract: AbstractOur main aim behind this project is to establish a comparative analysis between solar panels employing multiaxis solar trackers. Hence, it is intent to construct single axis solar tracker and dual axis solar tracker and to have a comparative analysis between no, single and dual axes solar tracker. The main controlling section will be developed using microcontroller. Light dependent resistors (LDR) will be used as a sensor which detects the …
Published in Journal of Electronic Design Technology · Vol. 11, Issue 1, 2020 · pp. 1–6 Read article