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1922 articles for “energy system”
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A study on CMOS Operational Amplifier in Sensor Development
Abstract: CMOS operational amplifiers (op-amps) have emerged as pivotal components in modern sensor development, enabling the amplification and conditioning of weak signals with high precision and efficiency. Their inherent advantages low power consumption, compact size, and seamless integration with digital circuits make them ideal for advancing miniaturized, battery-powered sensor systems in fields ranging from biomedical devices to IoT networks. By delivering precision, power efficiency, and integration, CMOS op-amps are not just …
Published in Journal of VLSI Design Tools and Technology · Vol. 16, Issue 1, 2026 · pp. 01–07 Read article
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Solar Thermal Energy Utilization: Design Innovations and Performance Enhancement Techniques
Abstract: The utilization of solar thermal energy has become increasingly significant in the pursuit of sustainable and low-carbon energy solutions. Unlike photovoltaic technologies that directly convert sunlight into electricity, solar thermal systems focus on harnessing solar radiation to generate heat, which can then be applied to diverse sectors such as water heating, space conditioning, industrial process heating, and power generation. In recent years, substantial research efforts have been directed toward enhancing …
Published in International Journal of Energy and Thermal Applications · Vol. 3, Issue 2, 2025 · pp. 1–5 Read article
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Microgrid System Control Identification and Evaluation for Enhanced Dynamic Operation
Abstract: Networking the distributed generators (DG) in a microgrid system involves a large number of electronic components and filters. Small changes or drifts in operating conditions as well as disturbances at the point of common coupling can excite the associated eigenvalues giving rise to slowly growing instability in the system. This article considers the stability of a microgrid system consisting of a micro alternator, wind generator, photovoltaic (PV) system, fuel cell …
Published in Journal of Control & Instrumentation · Vol. 9, Issue 1, 2018 · pp. 33–44 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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Smart Biopolymer–PCM Composite Modules with Embedded Wireless Thermal Sensing for Autonomous Energy Storage Applications
Abstract: The development of multifunctional polymer composite systems for intelligent thermal energy storage has gained significant attention due to the increasing demand for sustainable and autonomous thermal management technologies. In the present study, a wireless-integrated biopolymer–phase change material (PCM) composite module embedded with thermal feedback sensors was successfully fabricated and experimentally investigated for advanced thermal energy storage applications. Polylactic acid (PLA) was employed as the biodegradable polymer matrix, while paraffin wax …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 193–205 Read article
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An Energy Stored Quasi Z-Source Cascaded Multilevel Inverter
Abstract: In the world today, there is a huge demand of power, although we have sufficient energy generation technique, renewable energy power generation plays a major role, like solar. This paper is about the control technique, which includes ES-QZSI combined with CMI and energy storage in order to get constant output power without fluctuation from the solar panel. Combines cascaded multilevel inverter and quasi Z-source inverter. Battery is used to balance …
Published in Journal of Electronic Design Technology · Vol. 7, Issue 2, 2016 · pp. 24–34 Read article
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Analytical Design of 1 kW Capacity Lithium Bromide/Water Absorption Refrigeration System
Abstract: AbstractIn current era, the energy scarcity is the key concern. In this context, new alternative environment-friendly energy resources have to be explored. The researchers are focusing more on effective and efficient use of energy. The difference in demand and production of energy opens a new arena of heat recovery systems. Vapour absorption refrigeration systems (VARS) are one of the prominent heat recovery systems powered by heat, and can be powered …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 8, Issue 3, 2017 · pp. 36–49 Read article
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Current State and Future Directions for Electric and Hybrid Vehicles
Abstract: For the preservation of fossil fuels and the reduction of pollution for a safe environment and sustainable transportation, electric and hybrid electric vehicles (EV/HEV) are viable options. The development of these energy-efficient powertrains necessitates element, system, and management improvement. Battery management, fuel use, driver performance demand emissions, and management methods are all under control. Powertrain architecture, transmission type, power electronic converters, and energy storage systems are all included in the …
Published in Trends in Electrical Engineering · Vol. 12, Issue 3, 2022 · pp. 12–19 Read article
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Performance Optimization of Photovoltaic-thermal (PVT) Systems: A Comprehensive Review of Design and Efficiency Enhancements
Abstract: The desire for renewable energy solutions and the rising demand for energy worldwide have driven important developments in hybrid photovoltaic-thermal systems. Photovoltaic-thermal systems provide the advantages of both thermal energy collection and electrical energy generation as they integrate photovoltaic and thermal collectors into a single module. However, a number of variables, including system architecture, material choice, cooling systems, and ambient circumstances, affect how well they function. The goal of this …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 11, Issue 2, 2024 · pp. 9–16 Read article
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A Review on AI and Machine Learning for Predictive Maintenance and FDD in RAC Systems
Abstract: The paper reviews the existing AI/ML methods first in the general context of predictive maintenance and FDD of RAC systems, then specifically focusing on granular cooling appliances. Perspectives and insights are provided on the reasons why potentially valuable models do not make it into practice more often, and where future research and development should be headed. New emerging topics for decision support systems to include domain knowledge and physics-based modeling …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 13, Issue 1, 2026 · pp. 15–25 Read article
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Sustainable Innovations in Vapor Compression Systems: A Review of Heat Recovery and Environmental Performance
Abstract: Vapor compression refrigeration systems are widely used in residential, commercial, and industrial sectors, contributing significantly to global energy consumption and greenhouse gas emissions. This review explores sustainable innovations in vapor compression systems, focusing on waste heat recovery techniques and their impact on environmental performance. Key advancements include the integration of heat exchangers, ejector systems, and hybrid configurations that enhance energy efficiency while reducing refrigerant load and emissions. With a focus …
Published in Journal of Thermal Engineering and Applications · Vol. 13, Issue 1, 2026 · pp. 16–21 Read article
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Advanced Functional Polymers and Their Synergistic Role in Smart Composite Materials for Sustainable Industrial Applications
Abstract: Advanced functional polymers have revolutionized composite materials, offering enhanced properties such as self-healing, electrical conductivity, environmental adaptability, and high mechanical strength. These innovations are reshaping industries by enabling smarter, more efficient, and sustainable solutions. Functional polymers play a pivotal role in producing high-performance composite materials to meet the growing demands of sustainable industrial applications. Significant improvements in material properties mechanical strength, durability, thermal stability, and recyclability are achieved through the …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 12–27 Read article
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Literature Review and Research Gaps in Power Quality Enhancement: From Conventional Methods to Intelligent Solutions
Abstract: Power quality (PQ) has become a critical concern in modern electrical power systems due to the rapid integration of renewable energy sources, proliferation of power electronic devices, and increasing sensitivity of loads. This paper presents a comprehensive literature review and research gap analysis of power quality enhancement techniques, ranging from conventional approaches to emerging intelligent solutions. Traditional methods, including passive filters, capacitor banks, and synchronous condensers, have been widely employed …
Published in International Journal of Electrical Machine Analysis and Design · Vol. 4, Issue 1, 2026 · pp. 38–80 Read article
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Design and Analysis of Closed Flow System with Varying Various Parameters of Hydrodynamics for PEH
Abstract: In this work, a piezoelectric energy harvesting system is designed, which can vary different parameters for analyzing the output of PVDF (e.g. water flow rate, piezoelectric patch, piezoelectric circuit, pressure head and different configurations of installation of piezoelectric etc.). A prototype model is made of this system is made for experimental analysis. The analysis of the prototype is done by varying two parameters (i) Water flow rate (ii) Piezoelectric circuit. …
Published in Journal of Control & Instrumentation · Vol. 8, Issue 3, 2017 · pp. 30–37 Read article
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Experimental Investigation of Polymer Composite-Based Protective Structures for Mitigating Crash-Induced Mechanical Abuse in Lithium-Ion Batteries
Abstract: The objective of this paper is to determine the effectiveness of using polymer composite protective structures to protect against the mechanical abuses associated with crash impacts that affect lithium-ion batteries in terms of their structural integrity and their overall safety. In addition to their use in electric vehicles, lithium-ion batteries are also being increasingly used in renewable energy-based energy storage systems because they have high energy densities, long lifetimes, and …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 113–132 Read article
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Voltage Sag Mitigation Using DVR and Ultra Capacitor
Abstract: Due to the rising integration of renewable energy sources into the power system, power quality issues have recently become more significant. Voltage sags and swells are among the biggest issues with a power system, and a lot of research has been done to try to solve these issues. Equipment for power conditioning can enhance the quality of the power. Dynamic voltage restorers (DVR) are used to shield sensitive loads from …
Published in Journal of Semiconductor Devices and Circuits · Vol. 9, Issue 3, 2022 · pp. 21–31 Read article
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Biomass Energy – A Sustainable Option for Power Generation in Rural India
Abstract: Normal 0 false false false EN-US X-NONE X-NONE Energy is the basic driver of growth. Socio-economic growth is not possible unless energy security is ensured. The demand for energy in India is growing at a rapid rate. India is the world’s fifth largest energy consumer. This rapid growth in demand can be attributed to rise in population and increasing economic development. However, there is a great gap between demand and …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 3, Issue 1, 2012 · pp. 1–19 Read article
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Commercial refrigeration using CO2 as refrigerant- A Study
Abstract: AbstractToday, CO2 refrigeration and heat pumping technologies are recognized as workable and sustainable alternatives for a number of applications like commercial refrigeration, transport refrigeration, vehicle air conditioning, domestic hot water heat pumps and few industrial applications. This study gives an overview for the development possibilities for several applications during the next years. In next coming few years, an increase of market share for CO2 refrigeration and heat pump systems can …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 4, Issue 3, 2017 · pp. 1–6 Read article
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Performance of Wind Turbine under Different Operating Modes
Abstract: Out of all renewable energy resources wind energy is found to be the most viable energy source due to its availability, pollution free and fast developments globally. Wind turbine, one of the major components of wind energy conversion system is used to capture the energy associated with the wind for driving the induction generator generally adopted to generate electrical power. Power output of wind turbines varies in accordance with the …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 5, Issue 2, 2014 · pp. 1–10 Read article
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Power Converters for Renewable Energy Sources
Abstract: There has been a paradigm shift in the energy requirements of our world, from fossils to renewable energy this change will evolve further. This demands technological efficiency in terms of production, distribution and use of energy along with strengthening incentives to save energy at the end user. Energy conversion systems will play a vital role in this smooth transition. We can pave the way for renewable energies using highly efficient …
Published in Journal of Semiconductor Devices and Circuits · Vol. 4, Issue 3, 2017 · pp. 30–34 Read article