Search
139 articles for “Ambient”
-
Thermodynamic Analysis of Cascaded Organic Rankine Cycle for Optimizing Thermal Efficiency
Abstract: AbstractPower cycles converting medium temperature heat (~300°C) into electricity using working fluids like toluene, benzene etc. result in vacuum on condenser side operating near ambient temperatures. To overcome this, two stage cascaded power cycle is proposed with toluene in the top cycle and R- 245fa as a bottom cycle working fluid. In this scheme, condensation heat of toluene is used as a heat source for R- 245fa. A realistic analysis …
Published in Journal of Thermal Engineering and Applications · Vol. 5, Issue 3, 2018 · pp. 30–35 Read article
-
Importance and Need of Solar Photovoltaic Technology and Factors Affecting Efficiency
Abstract: Renewable energy is also called Green Energy. These energies are not exhausting and are constantly renewed. Renewal is very effective and necessary in the current situation, because as the number of people and technology increases, the demand for energy also increases. The use of solar energy research to reduce the energy crisis, protect the environment and ensure the most important economic development. Many factors affect its efficiency namely solar radiation, …
Published in Journal of Thermal Engineering and Applications · Vol. 8, Issue 3, 2021 · pp. 42–46 Read article
-
Failed Component Image Acquisition Quality Optimization for Machine Vision System
Abstract: AbstractWith the rapid development of the global semiconductor industry, electronic products are required to have new ideas, diversified functions, and thinness and shortness. The ball grid array (BGA) packaging technique arranges solder balls in a matrix mode on the bottom of the component substrate, so as to increase the functional density. The dye stain test is extensively used for array component failure analysis; however, the operation takes time and extends …
Published in Current Trends in Signal Processing · Vol. 10, Issue 2, 2020 · pp. 17–25 Read article
-
Aluminum and its Alloys to Recover from Corrosive Weather
Abstract: Corrosion is defined as deterioration of material, usually metal, because of reaction with its environment and which requires presence of an anode, a cathode, an electrolyte and an electrical circuit. Aluminum and its alloys are reactive to weather of exposure, e.g. ambient, acid and alkalis. Solid to pigments are prevented from corrosion by using inhibitors. Organic inhibitors are ever praised due to non-toxic performances. Basic processes are surface adsorption to …
Published in Emerging Trends in Chemical Engineering · Vol. 6, Issue 2, 2019 · pp. 7–19 Read article
-
Corrosion inhibitors of steel made implements
Abstract: Corrosion of steel in industrial weather is ever possible mechanism for failure by loss in weight. Of many materials steel forms most suitable property cluster for industrial infrastructure i.e. from ambient weather to acid plants. Therefore steel is to be protected from corrosion by industrial weather, which may be either by alloy formation or paints or coatings similar to paints. Alloy formation from steel with elements those produce surface adhered …
Published in Emerging Trends in Chemical Engineering · Vol. 6, Issue 2, 2019 · pp. 20–27 Read article
-
Optimisation of Electrocoagulation Flocculation Treatment of Laundry Greywater with Design of Experiment Methodology
Abstract: It is becoming increasingly more important to relook at the impact that greywater has on the environment and the opportunities that it can provide for water re-use. More especially that the sewer pipelines are often over flooded and overflowing onto the streets in most townships in South Africa due to sewer blockages, population, and wastewater treatment plants (WWTP) overcapacity. To cope with current and future wastewater treatment (WWT) demands, developments …
Published in Emerging Trends in Chemical Engineering · Vol. 8, Issue 3, 2021 · pp. 41–58 Read article
-
FUEL CELL-PV HYBRID SYSTEM FOR EVs
Abstract: This paper studies and analyzes a hybrid system consisting of a fuel cell unit and flexible photovoltaic panels to power electric vehicles. Hydrogen in a storage tank powers the fuel cell; the tank recharges by an onboard electrolyzer connected to the photovoltaic panels. Fuel cell unit operates in a closed loop to enhance efficiency and to avoid water waste and oxygen pollution with ambient gasses. A distilled water tank, connected …
Published in Journal of Automobile Engineering and Applications · Vol. 10, Issue 3, 2023 · pp. 20–30 Read article
-
Performance Evaluation of a Tilted Single Axis Photovoltaic Tracking System under Different Weather Conditions
Abstract: AbstractExperimental studies were carried out using 37 W photovoltaic (PV) panels under different weather conditions over a prolonged duration of time to evaluate the performance of a low cost tilted single axis tracking system in comparison with a horizontal single axis tracking system and two fixed PV systems. A horizontal single axis PV panel tracker (HSAPVPT) and a tilted single axis PV panel tracker (TSAPVPT) were set up to compare …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 8, Issue 2, 2017 · pp. 45–55 Read article
-
Parametric Study of Parabolic Trough Solar Collector System: A Review
Abstract: The detailed thermal analysis of a parabolic trough collector (PTC) was carried out to predict the thermal performance. The analysis is based on the established theory of PTC—the radiation absorption, heat loss from the collector, and temperature distribution on the plate. An analytical program, suitable for use on a digital computer is developed for the purpose of studying the hourly behavior of a solar collector. The exergy output is optimized …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 6, Issue 1, 2015 · pp. 46–50 Read article
-
Inhibitors of steel corrosion sector
Abstract: Inhibitor application in medium of exposure is to mitigate corrosion of mild steel. In industrial and ambient weather corrosions is either from acidic medium or soil compositions. Most of inhibitors appear to be green in origin i.e. environmentally friendly. These explorations account to prevent usage of toxic and high cost synthetic inhibitors. Comparative behaviors about inhibition efficiency restrain a long list of organic natural inhibitors to that of synthetic inorganic …
Published in Journal of Catalyst & Catalysis · Vol. 6, Issue 2, 2019 · pp. 12–22 Read article
-
Effect of Hooked-end Steel Fibre Incorporation in the Performance of Slag Based Geopolymeric Concrete Mixes
Abstract: In this study the efforts have been undertaken to evaluate the performance of slag based geopolymer concrete (GC) when hooked-end steel fibres have been incorporated in different percentages i.e. 0%, 0.5%, 1.0%, 1.5% and 2.0% to the mix. The alkaline activator used in this study was the dissolution of solid sodium hydroxide flakes in liquid state sodium silicate solution, dissolved in water. The compressive strength, split-tensile strength, shear strength and …
Published in Journal of Construction Engineering, Technology & Management · Vol. 10, Issue 2, 2020 · pp. 28–35 Read article
-
Automatic Irrigation System Utilizing Internet of Things
Abstract: In this paper, we show how the Internet of Things (IoT) may be effectively used in conventional agriculture. The number and quality of agricultural goods are both increased by this new approach. This study utilized the Internet of Things (IoT) with the help of a few sensors, including a soil moisture sensor to determine the amount of moisture in the soil, a temperature and humidity sensor to monitor changes in …
Published in Journal of Control & Instrumentation · Vol. 13, Issue 3, 2022 · pp. 9–15 Read article
-
Fuel Cell Power Conditioning for Low Power Applications
Abstract: Fuel Cells are the important building blocks of hydrogen-based applications. Proton Exchange Membrane Fuel Cell (PEMFCs) are useful for ambient temperature operating conditions. Fuel Cells cannot be interfaced to loads directly owing to many sources of power losses. Power Conditioning and Interface are equally important for driving loads using Fuel Cell generated power. Paper discusses the requirements of power conditioning, types of DC–DC converters, Experimental work performed on DC–DC converter …
Published in Journal of Electronic Design Technology · Vol. 7, Issue 3, 2016 · pp. 13–23 Read article
-
Effect of Air Pollution on the Carotenoids and Ascorbic Acid Content in Different Medicinal and Non-medicinal Plants
Abstract: AbstractDay by day increasing of vehicles has greater impact on the environment. Due to large population, automobiles and machines there is increase in air pollution. Large number of pollutants is released in ambient environment, damaging the quality of medicinal and non-medicinal plants. To study the effect of pollution on the carotenoid and ascorbic acid content in medicinal and non-medicinal plants we took six sampling sites: medical college, Tejgarhi, Hapur stand, …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 8, Issue 2, 2018 · pp. 7–11 Read article
-
Nanostructured Cr-WS2 Solid Lubricant Coating for Space Applications
Abstract: Abstract Tungsten disulphide (WS2) is one of the widely used intrinsic low friction materials, which is commonly used in the form of coating. WS2 offers very low coefficient of friction only in non humid conditions. Presence of humidity destroys this property and restricts its utility. Modifying the structure of WS2 by adding certain metals helps in overcoming this limitation and in addition improves the mechanical properties. Further, deposition technique and …
Published in Journal of Instrumentation Technology & Innovations · Vol. 9, Issue 1, 2019 · pp. 12–18 Read article
-
Design and Implementation of a Flexible Temperature and Humidity Control System
Abstract: This paper proposes the design and implementation of a flexible temperature and humidity (T&H) control system using an Arduino board, a T&H sensor module and a mobile app via Bluetooth module. The T&H control system is flexible in operation. It can automatically control the T&H of the environment under the predetermined thresholds, and can also manually control the T&H by a smart phone through Bluetooth technology. The Arduino has a …
Published in Journal of Microcontroller Engineering and Applications · Vol. 10, Issue 2, 2023 · pp. 19–37 Read article
-
IOT Based design and implementation of home automation using Blynk application.
Abstract: The increasing advancement in communications technology has sparked significant interest in home automation systems. It concentrates on the evolution of an IOT-based prototype home automation system which is capable of remotely controlling various household components with the help of the internet anytime and anywhere, as well as being programmable to operate based on ambient conditions. This paper represents prototype design implementation and performance testing of Home Automation System of low …
Published in Journal of Microcontroller Engineering and Applications · Vol. 10, Issue 3, 2023 · pp. 16–22 Read article
-
RF Energy Harvesting from Wi-Fi Router in 2.45 GHz ISM Band
Abstract: In this paper, an experimental RF energy harvesting system using rectifying antenna (rectenna) to harvest ambient energy from Wi-Fi at 2.45 GHz is presented. The proposed circuit is a combination of RMPA, followed by a third order stepped impedance low-pass filter, matching network and rectifier using Schottky diode for microwave (RF) to DC conversion. The performance of the rectenna is simulated by electromagnetic simulator computer simulation technology (CST) microwave studio. …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 3, 2015 · pp. 21–25 Read article
-
Development of Aluminium Based Silicon Carbide Particulate Metal Matrix Composite for Cylinder Liner
Abstract: Cylinder liner is used in engine block to give a wear protective surface for piston and piston rings. Friction accounts for a loss of over 30% of the total vehicle power. Over half of that power loss can be attributed to the frictional loss between piston rings and cylinder bores. The best approach for improving power train efficiency is to reduce friction loss and the way for reducing the rolling …
Published in Journal of Materials & Metallurgical Engineering · Vol. 7, Issue 1, 2017 · pp. 17–29 Read article
-
Analysis of Oxidation Behavior on T-22 Boiler steel at 800°C
Abstract: The behavior of boiler steel T-22 in a rich air environment has been studied under the condition of isothermal at 800°C for 50 cycles in a cyclic manner. The kinetics of oxidation was established for boiler steel T-22under cyclic conditions for 50 cycles by weight change technique per unit area. Each cycle heating the sample at 1 hour followed by cooling 20 minutes at ambient temperature. Detonation gun spray techniques …
Published in Journal of Polymer & Composites · Vol. 8, Issue 1, 2020 · pp. 18–25 Read article