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114 articles for “Energy conversion”
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Using Microalgae for Biofuel Applications
Abstract: Microalgae are microscopic algae (kingdom Protista) which are unicellular autotrophic organisms that perform photosynthesis and are highly specialized to the water environment which can convert CO2 into lipid which after esterification can be utilized as an energy source. This kind of algae contributes up to 60% of the oxygen contained in the earth's atmosphere by absorbing CO2 and releasing O2 during photosynthesis. Micro algae are found abundantly in the natural …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 9, Issue 2, 2023 · pp. 20–25 Read article
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Microelectronics: Reach, Functions, and Worldwide Effects
Abstract: Microelectronics has changed modern life by making it possible to make small, powerful, and efficient electronic systems. This article looks at the basic ideas behind microelectronics, with a focus on how to design and make integrated circuits and semiconductor devices that power the technologies we use every day. It also highlights how crucial advanced lithographic methods and fabrication techniques are for attaining high precision and scalability in the contemporary production …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 12, Issue 1, 2026 · pp. 33–46 Read article
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Biohydrogen Production via Thermochemical and Biological Routes
Abstract: Hydrogen is a crucial energy vector for developing a sustainable bioeconomy and can be produced from renewable biomass sources. This review explores various biological and thermochemical pathways for biomass-to-hydrogen conversion. Thermochemical processes include pyrolysis, gasification, fast pyrolysis, steam reforming, and supercritical water gasification, while biological approaches encompass photofermentation, dark fermentation, mixed fermentation, and bio- photolysis. Despite its potential, achieving reliable and selective hydrogen production is essential for economically viable industrial …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 11, Issue 1, 2025 · pp. 14–23 Read article
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Production of Waste Animal Bone as a Heterogeneous Solid Base Catalyst for Transesterification of Jatropha Oil
Abstract: Heterogeneous catalyst plays a vital role in transesterification process, especially in view of cost and reusability. In this study, heterogeneous solid base catalyst was prepared by impregnating the waste animal bone with different weight percent (wt%) KOH solution followed by drying and calcination at 900 °C for 3 hr. Having screened the catalytic performance and basicity of animal bone loaded with different K-compounds, 12 wt% KOH loaded on animal bone …
Published in International Journal of Chemical Separation Technology · Vol. 5, Issue 1, 2019 · pp. 28–48 Read article
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Basic Fundamentals of Different Solar Cells, Solar Energy Materials and Photovoltaic Performances
Abstract: Solar cell is one of the thrust areas of modern technology in the field of renewable energy. Crystalline semiconductor wafer based solar cells (SCs) (thicknesses almost 200–300 μm) mainly crystalline-Si or GaAs based solar cells are playing the legend role in last few decades. With technological revolution, thin film SCs (thickness range 1–2 μm), dye-sensitized or Graetzel, organic/polymer and plasmonic solar cell respectively are known as 2nd,3rd, 4th and 5th …
Published in International Journal of Energetic Materials · Vol. 1, Issue 1, 2015 · pp. 1–9 Read article
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A Review on Bio-Oil Production from Agricultural Waste Based on Various Processes, Bio-Oil Yield and Energy Recovery
Abstract: Agricultural waste generated through cultivation of crops, vegetables, fruits, and poultry can pollute the environment and affect the health of both humans and animals. Traditionally, most agricultural wastes are either burned or disposed of in landfills which cause acute environmental pollution. These easily accessible and underutilized agro-wastes remain a potential resource for biofuel production. This review analyses several thermochemical and biochemical methods encompassing pyrolysis, gasification, and hydrothermal carbonization (HTC) and …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 11, Issue 1, 2025 · pp. 9–19 Read article
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A New Method of Unicellular Alga Concentration using Hydrogen Bubbles Photoelectroflotation Process Powered by Solar Energy
Abstract: Most of the existing unicellular algae are used to enrich closed ecosystems with pure oxygen in the process of biosynthesis. The concentrate of unicellular algae contains not only living cells, but also the full range of water-soluble metabolites, contained in their nutrient medium. The concentrate of unicellular algae can be used in any existing animal feeding systems, as well as in the production of granular feed. The most interesting is …
Published in International Journal of Analytical and Applied Chemistry · Vol. 9, Issue 1, 2023 · pp. 1–16 Read article
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State-wise Assessment of Rooftop Solar Progress: Role of Financial Assistance and Policy Frameworks in Driving Market Growth in India
Abstract: India's rooftop solar (RTS) sector has experienced significant growth, aligning with the nation's commitment to sustainable energy. This paper explores the growth trajectory of the rooftop solar sector, particularly focusing on the domestic category in Indian states, where government initiatives and financial support from both the Central Government (Ministry of New and Renewable Energy, MNRE) and state governments have played crucial role in promoting adoption. Over the years, improvements to …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 11, Issue 2, 2025 · pp. 65–81 Read article
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Third Generation Biofuel as Alternative Fuel for Compression Ignition Engine
Abstract: In recent years, many researchers have tested compression ignition engines with the goal of creating a diesel fuel alternative. This was also published in literature. The limited supply and increased cost of petroleum products are two main reasons for the search for alternate feedstocks for biodiesel. This paper reviews the potential of alternative biodiesel feedstocks to replace petroleum diesel, specifically focusing on algae biodiesel and the process for producing biodiesel. …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 12, Issue 1, 2026 · pp. 10–15 Read article
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Diesel Engine Combustion and Emission Characteristics Study, Taking into Account the Potential of Biogas Substitution for the Purpose of Enhancing Environmental Cleanliness and Promoting Health
Abstract: Necessity for alternative fuels arises from the escalating energy requirements and the detrimental effects of fossil fuel emissions on environmental well-being. Alternative fuels have been extensively researched to improve energy efficiency. A study examines how alternative fuel affects compression ignition (CI) engine performance, pollution, and combustion. Biogas is investigated as a diesel engine fuel substitute in this study using computational fluid dynamics (CFD). Upon doing a thorough examination of the …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 9, Issue 1, 2023 · pp. 24–39 Read article
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Microgrid Sources and Power Electronic Interfaces: A ComprehensiveReview on Source Characteristics, Converter Design, Protection, Power Quality, and Energy Storage Integration
Abstract: Microgrids have become a prospective technology in improving energy reliability, sustainability, and resilience through a combination of a variety of distributed energy sources, sophisticated power electronic interface, and energy storage systems. In this paper, there is an in-depth discussion of the source of microgrids, its fundamental features, and how it works and the criteria that may be used in selecting the source of microgrids depending on the factors involved and …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 11, Issue 2, 2025 · pp. 30–61 Read article
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Hydrogenation of dimethyl-nitrobenzene to dimethyl-aniline in a three-phase Reactor
Abstract: The liquid-phase catalytic hydrogenation of dimethyl-nitrobenzene (DN) to Dimethyl-aniline (DA) was carried out in ethanol using 5% Pd/C as a catalyst. The effects of hydrogen partial pressure (400–1000 kPa), reaction temperature (343–403 ), catalyst loading (5–15 g/lit), speed of stirring range (200-800 rpm) and dimethyl-nitrobenzene concentration (0.12–0.75 mol/lit) on the hydrogenation of dimethyl-nitrobenzene and the yield of Dimethyl-aniline have been studied. Dimethyl-aniline was the only reaction product, generated through the …
Published in International Journal of Chemical Separation Technology · Vol. 3, Issue 2, 2017 · pp. 1–13 Read article
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Wind-Solar Cogeneration on the Grid Using Voltage-Source Converters
Abstract: The paper presents a cost-effective configuration for a Grid-Connected Wind-Photovoltaic Cogeneration system. In addition, topology provides an independent tracking of the maximum power point for both wind and solar to maximize renewable energy use. The solar is correlated with grid via Voltage Source Inverter (VSI), wind turbine based on a permanent magnet synchronous generator is correlated with the utility grid via Voltage Source Rectifier (VSR). The intermediate circuit capacitor was …
Published in International Journal of Electrical Power System and Technology · Vol. 9, Issue 2, 2023 · pp. 23–28 Read article
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Effective Utilization of Agriculture Waste
Abstract: Agricultural substances are produced on the earth with the change of seasons. Basically these substances are produced in the nature and are very important for the survival of consumers such as animals and human beings. These substances are widely available on earth, can be a good source of energy or can be converted into useful products. The wastes generated from the crops have a good potential to get converted to …
Published in International Journal of Plant Biotechnology · Vol. 5, Issue 1, 2019 · pp. 13–17 Read article
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An Overview of Bluetooth Technology & It’s Communication Applications in Recent Era
Abstract: In the recent period, Bluetooth technology has substantially changed how gadgets interact and communicate with one another. An overview of Bluetooth technology, its development, and its many communication applications is given in this paper. Since its introduction, Bluetooth has evolved into a standard component of many gadgets, including smartphones, computers, wearable technology, and Internet of Things (IoT) devices. The study examines the core ideas behind Bluetooth technology, emphasizing its wireless …
Published in International Journal of Broadband Cellular Communication · Vol. 9, Issue 1, 2023 · pp. 25–30 Read article
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THE DESIGN AND CONSTRUCTION OF AN INVERTER SYSTEM
Abstract: Efficient inverter technologies have become necessary due to the growing need for dependable,sustainable, and affordable power supply systems. An electronic device known as an invertersystem transforms direct current (DC) from a battery or renewable energy source into alternatingcurrent (AC), which can be used to power appliances in homes, businesses, and industries. Thisstudy aims to provide a thorough description of the architecture, construction, and operation of auseful and effective inverter system. …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 11, Issue 2, 2025 Read article
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Glycerol Management: Challenges and Opportunities for Biodiesel Producers and Refiners
Abstract: During the last few years, concerns with availability and cost of conventional liquid fuels increased considerably. Considering the present scenario, bio-components are playing an important role in transportation fuels. One such bio-based fuel that is being widely commercialized is biodiesel. With the commercial production of biodiesel a glut of glycerol is going to be created as a byproduct; it will cause market prices to plummet which imbalance the economic viability …
Published in International Journal of Green Chemistry · Vol. 1, Issue 1, 2015 · pp. 1–14 Read article
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Catalytic hydrogenation of dimethyl-nitrobenzene to dimethyl-aniline over Ni catalysts
Abstract: The catalytic transfer hydrogenation of dimethyl-nitrobenzene (DN) to Dimethyl-aniline (DA) was studied in the temperature range 343–403 , pressure range of 4–10 bar H2 and ethanol as solvent using Ni on alumina-silicate as catalyst above agitation speed 800 rpm. The substrate feed concentration was varied in the range from 0.124 to 0.745 kmol/m3 while catalyst loading was in the range 4–12% (w/w) of dimethyl-nitrobenzene. Dimethyl-aniline was the only reaction product, …
Published in International Journal of Chemical Engineering and Processing · Vol. 3, Issue 2, 2017 · pp. 19–29 Read article
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Closed Loop Response of Higher Order DC-DC Converter
Abstract: ABSTRACT Converter circuits which are used in power electronic systems for changing the dc voltage from one level to the other. Switching devices are utilized for processing energy from input to output. They have come across many types, some of them are employed for increasing the output voltage and some are utilized for decreasing the output voltage and some of them are applied for performing both the operations within the …
Published in International Journal of Digital Communication and Analog Signals · Vol. 5, Issue 1, 2019 · pp. 24–28 Read article
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Effects of Introducing Slots in Rectenna
Abstract: Wireless power is turning out to be a promising technology in near future. This would not only be an alternative to batteries and wired supply, but also protect our environment from the harmful effects of batteries. In this paper analysis of introducing slots in the rectenna is studied. An experimental RF energy harvesting system to transmit wireless powers using microwaves is designed and then effects of slot loading on the …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 1, Issue 1, 2015 · pp. 32–38 Read article