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132 articles for “radiation efficiency”
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Revolutionizing Energy Systems: The Impact of Steam and Its Technological Evolution
Abstract: The problem of environmental contamination, which is important for both public health and the economy, has been addressed through a great deal of research on the sterilization and disinfection of pollutants and microorganisms. Many types of pollutants and hazardous materials, such as microorganisms and toxic gases, are discharged into the environment and can enter the human body through ingestion, adsorption, or inhalation. Numerous respiratory conditions, strokes, lung cancer, and heart …
Published in Journal of Catalyst & Catalysis · Vol. 12, Issue 2, 2025 Read article
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AEROGELS – A VALUE ADDITION TO HARVEST SOLAR ENERGY
Abstract: Aerogels are a class of synthetic porous ultralight material that was created in 1930 and derived from a gel, in which the liquid component has been replaced with a gas without collapsing the gel structure by freeze-drying. It is made of silica, but carbon, iron oxide, gold, copper, polymer etc. can also be used. During freeze drying the liquid in the gel is slowly dried off without collapsing the solid …
Published in Journal of Thermal Engineering and Applications · Vol. 9, Issue 2, 2022 · pp. 23–39 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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Design and Construction of a Thermosiphonic Solar Photovoltaic – Thermal Water Heating System for Sustainable Development in Temperate Regions of Africa
Abstract: AbstractThe atmospheric temperature of some temperate regions of Africa is mostly about 30–45°C, it incites 30–80°C heat over the panel since black body of the PV panel observes more heat, and this temperature affects the electrical efficiency of the panel. The importance of energy availability in the economic growth, social and political development for every nation cannot be overemphasized. Affordable and reliable energy availability is the precondition for sustainable development. …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 8, Issue 3, 2017 · pp. 1–8 Read article
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Fabrication and Performance Analysis of Automatic Dual-axis Sun Tracking System using LDR Sensors
Abstract: Solar energy is experiencing exponential growth as a viable technique of increasing renewable energy resources. Engineers need to be versed with the innovation used in this domain.Since the solar array can remain oriented to the sun, solar tracking enables considerably increased power generation. A dual-axis solar tracker can track the Sun's radiation on both horizontal andvertical axes at the same time. They work on the same concept as astronomical telescope …
Published in Journal of Mechatronics and Automation · Vol. 9, Issue 3, 2022 · pp. 37–48 Read article
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Development and Evaluation of a Cost-Effective UV-Protective Cream Containing Para-Aminobenzoic Acid and Aloe Vera for Indian Climatic Conditions.
Abstract: The increasing incidence of ultraviolet (UV) radiation-induced skin disorders has heightened the demand for effective, affordable photoprotective agents, especially in countries with high sun exposure such as India. This study aimed to develop a cost-effective and efficient UV-B protective cream formulation suitable for populations in Indian latitudes. Para-aminobenzoic acid (PABA) was selected as the primary sunscreening agent due to its high UV-B absorption efficiency, low toxicity, and affordability compared with …
Published in Recent Trends in Cosmetics · Vol. 2, Issue 2, 2025 · pp. 7–18 Read article
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Atmospheric Modeling: A Comprehensive Review of Numerical Approaches and Applications
Abstract: Atmospheric modeling plays a crucial role in understanding and predicting atmospheric processes, weather patterns, and climate variability. This review synthesizes current methodologies and applications across several types of atmospheric models, including numerical weather prediction (NWP), climate models, air quality models, and chemical transport models. We explore the intricacies of data assimilation, model evaluation, parameterization, and the importance of high-performance computing in advancing model accuracy and efficiency. Special emphasis is placed …
Published in International Journal of Atmosphere · Vol. 1, Issue 2, 2024 · pp. 16–21 Read article
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Maximizing Output: An Overview of Loss Analysis in Grid-Connected Solar Photovoltaic Systems
Abstract: The use of solar energy is growing in importance globally, but particularly in India. Since there aren't manysolar plants operating in India right now, there isn't any historical data. It is crucial to investigate how wellsolar power plants operate. Acquiring knowledge about solar power plant performance will lead to wiseinvestment choices. In this work, we address the different aspects that affect solar power plant performance,including age-related deterioration, inverter efficiency, design, …
Published in Journal of Nuclear Engineering & Technology · Vol. 13, Issue 2, 2023 · pp. 53–61 Read article
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Assessment of Natural Radiation Exposure from Sand and Sediment Samples Obtained from Kuakata Beach Area in Bangladesh
Abstract: In Bangladesh, Kuakata Beach situated in Patuakhali district contains some in sand and sediment. In this paper the activity concentration and absorb dose of sand and sediment collected sand and sediment collected from Kuakuta Beach were measured. The activity concentrations of radionuclides and their respective annual effective dose rates, produced by 226Ra, 232Th, 40 K were measured using a High Purity Germanium (HPGe) detector of relative efficiency 40%. The measured …
Published in Journal of Nuclear Engineering & Technology · Vol. 8, Issue 3, 2018 · pp. 18–26 Read article
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Comparative Analysis of Supercritical Boiler efficiency with Indian and Imported Coal under Indian Condition.
Abstract: Due to the growing demand for generating and the depletion of basic resources, power plants with larger capacity and higher efficiency are becoming increasingly necessary. In this context, Governments and private sectors are going to invest huge resources to construct power plants with super-critical units working on Indian as well as imported coal (Indonesian & South African). Supercritical technology is always embraced all over the world, and India is no …
Published in Journal of Thermal Engineering and Applications · Vol. 10, Issue 2, 2023 · pp. 31–36 Read article
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Critical Review on Photocatalytic Polymer Nanocomposites for Indoor Air Purification in Hotels
Abstract: The indoor air quality has become a key measure of health, comfort, and customer satisfaction of a hospitality setting. The challenges that continually affect hotels especially because of volatile organic compounds (VOCs), particulate matter, and microbial pollutants that are present in cleaning agents, furnishing, and human activity. In this regard, the photocatalytic polymer nanocomposites are one of the sustainable and efficient means of purifying indoor air. These materials combine photocatalysts …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 527–541 Read article
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DESIGN AND FABRICATION OF EVACUATED TUBE - SOLAR WATER HEATER
Abstract: The current review study examines the existing solar water heating systems and their uses. Hot wateris being utilized in home, commercial, and industrial settings. Coal, diesel, gas, and other fuels areused to heat water and create steam, among others. The main alternative to conventional energysources is solar energy. The method to capture the large amount of unrestricted free sun thermalenergy is the solar thermal water heating system. The solar thermal …
Published in Journal of Experimental & Applied Mechanics · Vol. 13, Issue 3, 2022 · pp. 48–53 Read article
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SIMULATION OF THE PERFORMANCE OF PV/T (PV-PCM) SYSTEMS IN TRANSIENT STATE
Abstract: The paper describes the analysis of the thermal performance of a PCM unit attached to a PV panel configuring a PV/T system. Thermal performance has been analyzed from the transient process point of view considering the temperature evolution of the PCM with time dependent on ambient temperature and solar radiation. A specific algorithm for determining the time evolution of the PCM temperature has been developed. The model uses the DERIVE …
Published in Journal of Thermal Engineering and Applications · Vol. 10, Issue 1, 2023 · pp. 1–13 Read article
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Recent Development Technique in Management of Cancer
Abstract: Cancer develops when a change in one's genetic makeup leads to the development of tumour cells. These clusters of malignant cells eventually develop into tumours. Tumours can shed cancerous cells, which can then travel through the lymphatic system or the circulatory system to other organs. In the medical field, this occurrence is referred to as metastasis. Cancer cells proliferate even when they have no instructions to do so. Despite the …
Published in Research and Reviews: Journal of Oncology and Hematology · Vol. 13, Issue 1, 2024 · pp. 25–41 Read article
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Investigating the Effect of Spectral Variations on the Performance of Monocrystalline, Polycrystalline and Amorphous Silicon Solar Cells
Abstract: The study of spectral variations is very important in the characterization of silicon solar cells. The spectral variations of monocrystalline, polycrystalline and amorphous solar cells is studied through the spectral response with the help of spectral response evaluation meter, CEP-25HS-50SR. PVsyst 6.4.3 software is used to study the variation of air mass throughout the day and the year and to understand that how solar irradiance varies with the changing air …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 7, Issue 3, 2016 · pp. 28–36 Read article
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Scaling Cost Model for the Economics of Concentrated Solar Power Plants
Abstract: Concentrated Solar Power (CSP) is a renewable energy technology that can provide clean and reliable energy to regions with adequate environmental resources. Especially for the regions around the Mediterranean Sea, where solar radiation is significant, this technology seems to have great potential to meet the medium and long-term targets for emission-free energy production, once cost-related issues have been resolved. Factors such as the capacity of the plant, the efficiency of …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 2, Issue 1-3, 2012 · pp. 74–87 Read article
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A Brief Review on Solar Water Heater
Abstract: Solar Energy is a renewable source of energy. Its applications are not hazardous as they do not promote to production of greenhouse gases and additional contaminants to the environment. Focused collectors are generally used in solar thermal power generation and water heating system as well. It is extremely common owing to its superior thermal efficiency, minimal construction needs and low production expense. This paper is concerned with an experimental study …
Published in Trends in Electrical Engineering · Vol. 12, Issue 2, 2022 · pp. 1–6 Read article
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Design and Implementation of an Automatic Fire Extinguishing System Using Arduino UNO
Abstract: Fire safety is an essential concern in both residential and industrial spaces. Conventional firefighting techniques frequently call for human assistance, which is not always adequate or timely. This study discusses the design and development of an automatic fire suppression system that uses an Arduino UNO microcontroller, a 5 V single-line relay, an infrared (IR) sensor, a buzzer, and a 5 V DC pump. The system identifies a fire by detecting …
Published in Journal of Microelectronics and Solid State Devices · Vol. 12, Issue 1, 2025 · pp. 6–12 Read article
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MHD-Assisted Flow Regulation of Viscoelastic Polymer Fluids for Industrial Cooling and Composite Fabrication with Isotherml Plates
Abstract: This study investigates the magnetohydrodynamic (MHD) regulation of viscoelastic polymer fluid flow over a permeable plate, emphasizing its relevance to industrial cooling and composite fabrication. An incompressible, electrically conducting viscoelastic fluid is analyzed under a transverse magnetic field with Hall and ion-slip effects to capture electromagnetic alterations in polymer transport. The governing non-dimensional equations for momentum, temperature, and concentration are solved analytically using the perturbation method. The results show that …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 851–866 Read article
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Construction and Comparative Analysis of Passive and Active Indirect Hybrid Solar Dryer’s for Drying Tomatoes
Abstract: The surplus agricultural products needed to be preserved by drying during harvesting period for long term storage. The application of modern techniques of solar thermal systems using solar dryers substitutes the use of an olden day’s method of direct sun radiation. This research entailed construction and comparative performances analysis of two different hybrid indirect solar dryers. The average daily air flow rates and temperatures in the dryer’s chamber, the weight …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 14, Issue 2, 2024 · pp. 17–26 Read article