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776 articles for “operating conditions”
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Polymer and Polymer-Metallic Reflective Materials for Solar Thermal Applications: A review
Abstract: Reflective materials play a critical role in determining the optical and thermal performance of solar thermal systems by controlling the concentration and utilization of incident solar radiation. This review examines the application and performance of polymer-based and polymer-metallic reflective materials for solar thermal applications, with particular emphasis on their suitability for solar cookers and concentrating solar technologies. Four commonly used reflector materials—aluminum foil, anodized aluminum, Mylar (metallized polyester film), and …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 Read article
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Fuzzy Logic and Internet of Things based Automatic Three Phase Changeover
Abstract: Three phase supply is preferred over single-phase supply not only in commercial sector but also in residential sector due to its ability of supplying uniform and less fluctuating power. However phase cuts or phase failure may occur in a three phase supply due to a disturbed transformer or any other technological factor. This generally renders one phase inoperative. A commonly available solution is manual three phase changeover switch. Manual switching …
Published in Journal of Advancements in Robotics · Vol. 5, Issue 3, 2018 · pp. 1–11 Read article
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Performance Evaluation of Thermoacoustic Refrigeration System
Abstract: Today cooling technologies are going through a transformation phase. The advent of ozone layer depletion and global warming caused by the use of synthetic refrigerants has necessitated a search for alternative cooling technologies. Out of the several technologies which are emerging as alternatives, one technology that can provide cost effective refrigeration without using any of the environment degrading refrigerants is the thermoacoustic refrigeration system. Ideally, this device can be powered …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 1, Issue 1, 2014 · pp. 22–29 Read article
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Analysis of Flow in Calandria Type Evaporator Using CFD
Abstract: Evaporation is the vital process involved in the sugar industry as this determines the quality and their efficiency at the earlier stage of production. Factors affecting the evaporation process are mass flow rate, temperature, pressure and velocity. Since flow of the sugar solution within the evaporator has a major impact on its overall performance a detailed study on it will be much useful to improve the efficiency. The flow of …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 2, Issue 1, 2015 · pp. 55–65 Read article
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Gas Foil Bearings (GFBs) With Different Bump Foil Materials
Abstract: There is a significant attention on GFBs in recent times owing to its oil free technology and suitability over a wide arrays of operating conditions. However GFBs have considerably low load carrying capacity as compared to a normal gas bearings (GBs). The present paper investigated the static analysis and comparison of the load capacity of the bump-type GFBs for a simple foil configuration considering only deflection of bump foils. Different …
Published in Trends in Machine design · Vol. 1, Issue 2, 2014 · pp. 31–41 Read article
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Startup of a UASB Reactor using Kitchen Effluent
Abstract: This study was designed to evaluate the treatability performance of a single-stage upflow anaerobic sludge blanket (UASB) reactor at neutral pH and constant mesophilic temperature, and to investigate the biogas yield of a single-stage UASBR using kitchen effluent. For this purpose 70% of UASB reactor was seeded with anaerobic digester and activated sludge of the nearby wastewater treatment plant. The acclimatization process continued for about 18 days in the laboratory. …
Published in Journal of Water Pollution & Purification Research · Vol. 2, Issue 1, 2015 · pp. 14–20 Read article
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New Methods for the Prediction of Multiphase Flow through Wellhead Choke in Gas-Condensate Reservoirs
Abstract: Abstract The wellhead chokes are installed in order to stabilize oil and gas flow rates in production and operation disciplines. Most of the existing empirically derived correlations and predictive models to estimate choke performance have been proposed for oil fields production and operational conditions, and particularly production systems and reservoirs involved with condensation of the gaseous phase still suffer from a detailed consideration on the development of reliable predictive models. …
Published in Journal of Offshore Structure and Technology · Vol. 4, Issue 1, 2017 · pp. 1–10 Read article
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Use of Fuzzy Logic Method for the Optimisation of the Wear Parameters of Aluminum Alloy
Abstract: In this paper, use of fuzzy logic in the Taghuchi method for the optimisation of the wear parameters of aluminum alloy is explained. An experiment was conducted on three alloys viz. Al-25Zn-2.5Cu-5SiC, Al-25Zn-2.5Cu-10SiC, Al-25Zn-2.5Cu-15SiC. Experiments were carried out on standard pin-on-disc machine, at ambient temperature and under dry operating condition. The three process parameters like sliding velocity, load and sliding distance were optimized. In the Taguchi method, L27 orthogonal array …
Published in Trends in Mechanical Engineering & Technology · Vol. 5, Issue 1, 2015 · pp. 20–25 Read article
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Ionic Liquids: Environmentally Benign Solvent for Extractive Deep-desulfurization of Liquid Fuels
Abstract: Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4 In order to obtain the ultra-low sulfur fuels, deep desulfurization of fuels has become a vital subject of environmental studies. Extraction desulfurization system is one of the most promising desulfurization processes. The aim of this study is to investigate the possible use of Ionic liquids as an extractant for the removal of dibenzothiophene. Ionic Liquids as green solvents have recently been …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 5, Issue 3, 2014 · pp. 28–34 Read article
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Performance Evaluation of Wood Gasifier
Abstract: Generating electrical energy through biomass has advantages besides achieving self-sustainability. Biomass is particularly useful for agriculture dependent economy nations like India. Energy conversion systems based on biomass are particularly interesting because biomass utilization effectively closes the carbon cycle. An experimental investigation on biomass based gasifier engine system of 35kVA capacity has been carried out for power generation application. Problems of cooling and cleaning hot and dirty gas from gasifier has …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 3, Issue 3, 2012 · pp. 1–9 Read article
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Neuro-Fuzzy Technique Based Fault Diagnosis in Shell and Tube Heat Exchanger
Abstract: In order to transfer heat between two different medium or else the same medium heat exchanger is used. It is most widely used in oil refineries and other large chemical processes, and it is also suitable for high-pressure applications. Because of the change in process parameters, the general warmth exchange rate will be reduced in the heat exchanger. In order to rectify it, the possible faults developed in the heat …
Published in Journal of Instrumentation Technology & Innovations · Vol. 6, Issue 2, 2016 · pp. 21–27 Read article
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ESTIMATION OF AIRBORNE CONCENTRAION OF RADIONUCLIDES USING FUNDAMENTAL APPROACH
Abstract: Most of the literature exists on the simulation of accidental release from chemical or nuclear plant. In this work we have carried out fundamental modelling of radioactive release under normal operating conditions. An attempt is made to estimate the airborne radionuclide concentration in the atmosphere from probable release from stack. The effect of release stack height and the radionuclide source strength on the airborne radionuclide concentration are studied. The location …
Published in Journal of Nuclear Engineering & Technology · Vol. 7, Issue 1, 2017 · pp. 4–8 Read article
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Efficiency improvement in aerothermal household heating systems
Abstract: This paper shows a new method to improve the aerothermal household heating system. The development bases the design on a forced convection assistance unit attached to the water radiators used for heating the house. The proposed design applies to any household heating system with wall radiators powered by an aerothermal unit. The household heating protocol is enhanced thanks to a quicker rate of room temperature rising, which allows setting up …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 10, Issue 3, 2023 · pp. 1–15 Read article
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Biochar-based nano-composite for the removal of dyes from the wastewater
Abstract: This research work focuses on recent applications of biochar’s nano composites, produced from biomass pyrolysis, in water and wastewater treatment. Pyrolysis of wood is the possible path for converting biomass to higher valuable products such as bio-oil, bio-char and bio-gas. This work focused on the formation, analysis of bio-char based nanocomposites which was obtained from the wood pyrolysis. A FT-IR technique was used for the determination of groups present in …
Published in Journal of Water Pollution & Purification Research · Vol. 5, Issue 1, 2018 · pp. 25–30 Read article
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Efficient Nanostructure Cathode Material for Low Temperature Solid Oxide Fuel Cells: LaSr0.5Mn0.5Co2-xFexO5+δ
Abstract: While significant progress has been made in anode materials with enhanced tolerance to coking and contaminant poisoning, cathodic polarization still contributes considerably to energy loss, more so at lower operating temperatures. Here we report a synergistic effect of co-doping in a cation-ordered double-perovskite material, LaSr0.5Mn0.5Co2-xFexO5+δ , which has created pore channels that dramatically enhance oxygen ion diffusion and surface oxygen exchange while maintaining excellent compatibility and stability under operating conditions. …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 19, Issue 3, 2017 · pp. 49–55 Read article
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Numerical Investigation on Performance Analysis of Turmeric Curing Steam Generator
Abstract: In this paperarticle, an analysis of the on- field steam temperature produced in a plain tube- type turmeric curing steam generator and a numerically modified steam generator are is presented. The performance of the steam generator used to cure turmeric is studied using a numerical model. The numerical model is validated with on- field data of from a plain- tube type turmeric curing steam generator. The simulation results and on-field …
Published in Journal of Aerospace Engineering & Technology · Vol. 13, Issue 2, 2023 · pp. 11–19 Read article
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Production of Bioethanol from Agro-food Waste (Potato Peel) with the Aid of NPK Fertilizer and Moringa Leaf as Activators
Abstract: In this work, the production of ethanol with the aid of activators was investigated. Two-step hydrolysis of sweet potato peel was studied. Acid hydrolysis was carried out using dilute sulphuric acid, while enzyme hydrolysis was studied using Aspergillus niger inoculum. The effect of activators on ethanol yield was also investigated. Saccharification was studied using aspergillus niger which is a starch degrading organism to generate convertible sugar. Fermentation was carried out …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 14, Issue 1, 2023 · pp. 29–39 Read article
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Life Cycle Cost Optimization of Various Building Envelope Configurations with Thermal Load of an Energy Efficient Building Situated in Composite Climate of India
Abstract: Normal 0 false false false EN-US X-NONE X-NONE Energy efficiency in buildings has become a thrust area due to energy and environment-related issues. In this paper, an energy efficient building situated at Delhi, India has been analyzed for the life cycle cost, which includes the cost of material, air-conditioning machine, and operational cost for various configurations of fire clay bricks and ash blocks building envelope. It was found that use …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 2, Issue 2, 2011 · pp. 17–29 Read article
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Smart Fan Speed Regulator using ESP32 With Temperature-Based Automatic Control and IoT Monitoring
Abstract: The increasing demand for energy-efficient and intelligent electrical appliances has created a need for automated systems that can regulate their operation according to changing environmental conditions. Conventional ceiling fans generally require manual speed adjustment, which may result in unnecessary energy consumption when the fan continues to operate at a higher speed than required. To overcome this limitation, this project proposes a Smart Fan Speed Regulator using an ESP32 microcontroller with …
Published in Journal of Microelectronics and Solid State Devices · Vol. 13, Issue 2, 2026 Read article
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Downshifting Strategy Using Gear Skipping During Normal Braking in Electric Vehicles Equipped with AMT
Abstract: In this paper, the regenerative braking method using optimal downshifting is investigated to increase the recovering energy during normal braking in an electric vehicle equipped with Automatic Manual Transmission (AMT). First, the modeling of the electric vehicle powertrain and consideration of brake force distribution was carried out. Based on these, the method to select general downshifting points was mentioned in the electric vehicle. Second, the effect of power interruption on …
Published in Journal of Automobile Engineering and Applications · Vol. 12, Issue 2, 2025 · pp. 8–19 Read article