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181 articles for “working fluid”
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Selection of Working Fluid for Organic Rankine Cycle by Energy and Exergy, For Low Temperature Low Enthalpy Dholera Geothermal Reservoir
Abstract: In today’s scenario of increasing energy demand, it is high time to give emphasis on renewable energy sources. The conventional energy sources that humanity is depending upon today are not only depleting, but also cause significant environmental impact. The burning of coal and fossil fuels causes serious air pollution and several major cities are already under deep threat due to the increasing amount of pollution. Future predictions show an exponential …
Published in Emerging Trends in Chemical Engineering · Vol. 3, Issue 2, 2016 · pp. 1–10 Read article
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Recent Developments in Solar Photovoltaics and Thermal Hybrid Technology
Abstract: The electrical performance of solar PV panel decreases with increase in the panel/module temperature which is cause of concern in the summer season. To decrease the effect on electrical performance due to increase in module temperature, heat is extracted from the module and used as thermal energy. Heat exchanger or heat extraction device is put on the rear surface of the PV panel and working fluid or coolant is flowed …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 6, Issue 1, 2015 · pp. 14–34 Read article
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Development of a Heat Actuator Using Liquid-Vapor Phase Change of R134a
Abstract: AbstractLarge volume changes can be produced by liquid-vapor phase change of working fluids which can be used in actuators as the driving power source. The temperature range of working of such actuators depends on the characteristics of the phase change working fluid. In this paper we discuss the concept and design of a heat actuator which uses liquid-vapor phase change of its working fluid for actuation of a piston. The …
Published in Journal of Thermal Engineering and Applications · Vol. 6, Issue 1, 2019 · pp. 1–4 Read article
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Studying the Effectiveness of Solar Thermal Collectors Using Nanofluid
Abstract: Energy plays a crucial role in the technological growth that humanity is now experiencing. However, new avenues for energy generation and consumption have also been made possible by this advancement in science and technology. Another major factor driving up energy needs is an increase in population density. Carbon footprints are being left on the environment by fossil fuels, which are running out more quickly. Dependence on renewable energy sources, which …
Published in Journal of Experimental & Applied Mechanics · Vol. 16, Issue 3, 2025 · pp. 35–41 Read article
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Enhancing the Performance of Evacuated Tube Heat Pipe Solar Collector Using CuO Nanofluid
Abstract: Renewable energy is an important component of sustainable development technologies that meet current demands without risking future generations' ability to meet their own. Due to fast expanding energy consumption and environmental concerns, many international scholars are seeking an alternate approach to fulfill future energy demand. Due to its abundance and pure nature, solar energy appears to be the most enticing option in this case. Because of their ease of use, …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 393–407 Read article
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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
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Solar Heat Pipe Design and Heat Loss Analysis
Abstract: Abstract: This paper is detailed on the design and heat loss analysis of solar heat pipe. Solar heat pipe is thermal device which use to transfer abundant amount of solar energy to working fluid through very smaller cross section area. Solar heat pipe server so many applications in engineering, i.e., water heating system, aerospace application, refrigeration and air conditioning and process industries. The design of heat tube includes finding diameter …
Published in Journal of Thermal Engineering and Applications · Vol. 6, Issue 1, 2019 · pp. 24–28 Read article
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Analysis on Heat Recovery of an Engine Radiator using (CH2OH)2 Based Nanofluid Having TiO2 Nano Particles
Abstract: Automobile engine produces high amount of heat in the process of combustion. This internal heat rises the temperature of engine to very high level and can damage or seize the engine parts. Hence for the safety of engine components, it needs to run at much lower temperature, which is called engine working temperature. Ethylene glycol based nanofluids are used as the working fluids for the radiator and Titanium Dioxide, Silver, …
Published in Journal of Thermal Engineering and Applications · Vol. 6, Issue 2, 2019 · pp. 10–23 Read article
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Chemical Processing of SU-8 Photoresist to Record the Surface-Driven Microfluidic Flow of Dyed Working Liquid in the Regime of Fluid Mechanics
Abstract: Chemical processing of negative photoresist SU-8 is performed to fabricate a set of three individualSU-8 based glass microfluidic devices inside the cleanroom laboratory. The major steps of SU-8processing are spin coating using a spin coater, soft baking, ultra-violet (UV) exposure, post exposurebaking, development by SU-8 developer, and hard baking. The indirect bonding for leakage-freesealing is used during hard baking to fabricate the microfluidic devices. Author has prepared thedyed water to …
Published in Emerging Trends in Chemical Engineering · Vol. 8, Issue 1, 2021 · pp. 53–57 Read article
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A review on the Enhancing Heat Exchanger Efficiency with CuO/Water Nanofluid in a Shell and Helical Coil System
Abstract: Over the years, there has been a lot of focus on improving heat transmission by utilizing various approaches in an effort to make heat exchangers smaller and less expensive. The following methods have been found to be the most successful in increasing heat transfer rate in heat exchangers: Nano-Fluids, first (3) Rubbing heat exchanger surfaces rough. (2) Inserting fluid tabulators. However, a combination of all three approaches or any two …
Published in Trends in Mechanical Engineering & Technology Read article
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A Technical Review on Evaluation of Vegetable Oil in Water-Emulsion Cutting Fluid in Machining Steel with Coated Carbide Tool
Abstract: In metal cutting industries, Metal working fluids (MWFs) or Metal cutting fluids (MCFs) are used; they act as coolant as well as lubricant. In industries synthetic and petroleum based cutting fluid as well as coolant produce negative effect on human health, ecology and environment. When tool and work piece are engaged with each other while machining due to engagement they produce heat. The metal cutting fluids effect on heat generation …
Published in Journal of Materials & Metallurgical Engineering · Vol. 7, Issue 3, 2017 · pp. 26–34 Read article
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Surface-Driven Capillary Flow on Microchannel Surface Coated with Diamond like Carbon of Nano-scale Thickness towards the Applications in Statistical Features of Fluid Mechanics
Abstract: In this experimental work, polymethylmethacrylate (PMMA) is the chosen polymer as device material to fabricate the microfluidic devices. PMMA is optically transparent polymer which is a facility to record the microfluidic flow of any dyed working liquid inside the fabricated microchannels. Two individual microfluidic devices are fabricated by lithographic techniques. Dyed water is selected and prepared as working liquid. Leakage-free surface-driven capillary flow of dyed water is recorded corresponding to …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 8, Issue 3, 2021 · pp. 8–12 Read article
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Numerical Analysis and Comparison of Various Cross Sections of Heat Pipes in Heat Exchanger
Abstract: The present work describes about numerical analysis of heat pipe with different cross sections such as L-shape, U-shape, wave and spring configurations. The effect of various configurations of heat pipe plate exchanger are examined by considering temperatures, velocities, pressure depressions. The numerical values of Reynolds number, Nusselt number, heat transfer were calculated at different velocities. The outcome of numerical analysis found that it influences fluid flow and pressure depression. Hence, …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 74–81 Read article
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Enhancement of Horizontal Jet Impingement Heat Transfer Analysis on Vertical Flat Plate
Abstract: This research investigates the heat transfer characteristics and heat flux distribution associated with parallel jet impingement on a vertical flat plate. A comprehensive computational fluid dynamics (CFD) analysis is carried out and systematically validated against available experimental data to ensure the accuracy and reliability of the numerical model. The jet length is maintained constant at 12 mm, while the jet-to-plate separation distance is varied at 6, 12, 18, and 24 …
Published in Journal of Experimental & Applied Mechanics · Vol. 17, Issue 1, 2026 · pp. 65–80 Read article
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Performance Assessment of External Source-Driven Binary Vapor Cycles with Ammonia-Water and Trans-critical CO2: The Impact of Reheating and Pressure Variations
Abstract: This paper investigates the thermodynamic performance of binary vapor cycles, focusing on two working fluid combinations—ammonia-water mixtures and trans-critical carbon dioxide (CO2). The analysis evaluates how system performance is influenced by incorporating reheating processes and varying operating pressures, which are key parameters in optimizing cycle efficiency and energy recovery. By leveraging external heat sources and exploring these configurations, the research aims to provide insights into improving the efficiency of industrial …
Published in Journal of Thermal Engineering and Applications · Vol. 12, Issue 1, 2025 · pp. 23–29 Read article
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Optimizing Power Generation from Building Ventilation Systems: A Study on Exhaust Fan Efficiency
Abstract: Due to population growth, the world's energy consumption has increased dramatically in both wealthy and developing nations in recent years, and by 2042, it is predicted to have doubled or more. Since a few years ago, the use of innovative sustainable power sources to meet energy demands has been gradually increasing. We've chipped away at a different idea because of this. As an alternative energy source, renewable energy (RE) resources …
Published in International Journal of Electrical Power and Machine Systems · Vol. 1, Issue 2, 2023 · pp. 22–27 Read article
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Investigation of Forced Convection Heat Transfer Efficiency Using Cuo/Water Nanofluid in A Concentric Tube Heat Exchanger with Helical Coiled Insert
Abstract: An apparatus that uses nanofluid to transport heat is called a heat exchanger. This uses a nanofluid as the working fluid. One can make nanofluid hanging nanoparticles in liquids such as petroleum products, water, oil, ethylene glycol, fluorocarbons, etc. Forced convection heat transfer using CuO/water as a Nanofluid and distilled water as the base fluid has been examined in a concentric tube heat exchanger with helical coiled insert. Tests on …
Published in Journal of Experimental & Applied Mechanics · Vol. 15, Issue 2, 2024 · pp. 27–41 Read article
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Optimization of Procedure and Variables of a Double Pipe Composite Heat Exchanger with Protruding Surfaces
Abstract: Under low heat duty conditions, double pipe heat exchangers are employed. When utilized for heavy-duty tasks, they show limitations. To use double pipe heat exchangers for heavy-duty applications, heat transmission needs to be increased. In this project, we are investigating the optimization process parameters of a twin pipe heat exchanger with and without protruding surfaces. In both cases, the inner and outer tubes are composed of steel, and the working …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 472–485 Read article
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Thermal Management of Different Composites Materials Using a Convergent and Straight Vortex Tube
Abstract: The present study focuses on an in-depth and meticulous exploration into the intricate realm of thermal management in three distinct yet widely utilized composite materials—namely, Liquid Crystal Polymer (LCP) Composites, Glass Fiber Reinforced Polymers (GFRPs), and Aramid Fiber Composites (Kevlar). This investigation employs an innovative counter-flow vortex tube system, meticulously analyzing and comparing the thermal efficiency of these materials under different intake configurations. Specifically, two distinct geometrical intake designs—a straight …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 252–266 Read article
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Performance Assessment of External Source-Driven Binary Vapor Cycles with Ammonia-Water and Trans-Critical CO2: The Impact of Reheating and Pressure Variations
Abstract: This study examines the thermodynamic performance of binary vapor cycles, specifically analysing two working fluid combinations: ammonia-water mixtures and trans-critical carbon dioxide (CO2). The study aims to evaluate their efficiency, applicability, and potential for improving energy conversion systems in various thermal applications. The analysis investigates how incorporating reheating processes and adjusting operating pressures impact system performance. These two parameters play a critical role in enhancing cycle efficiency and maximizing energy …
Published in Journal of Thermal Engineering and Applications · Vol. 12, Issue 2, 2025 · pp. 42–49 Read article