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278 articles for “Working Fluids”
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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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Analyses of a Typical Combined Cycle Power Plant using Different Working Fluids
Abstract: A complete first and second law analyses are applied to a typical combined cycle power plant using different working fluids in the bottoming Rankine cycle. The working fluids were chosen from the literature. Out of all the working fluids chosen, steam gave maximum first-law efficiency, second-law efficiency, and net work done and minimum exergy destruction for entire combined cycle power plant.
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 5, Issue 2, 2018 · pp. 4–9 Read article
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Separation Trends of Waste Metal Working Fluid from Aqueous Media
Abstract: This paper envisages compiling the scattered available information about the treatment technologies and simple sorption procedures for the removal of waste metal working fluids (MWFs) from machining waste water. Some advantages of sorption technique through agro-waste materials over conventional treatment technologies for the MWFs removal are also the focusing objectives of this paper. Sorbents usually contains various active groups; they are robust and can be the better part of filtration …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 3, Issue 2, 2013 · pp. 45–56 Read article
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THERMODYNAMIC SIMULATION OF PERFORMANCE OF ATKINSON CYCLE WITH VARIATION OF CYCLE PEAK TEMPERATURE & SPECIFIC HEAT RATIO OF WORKING FLUID
Abstract: Thermodynamic analysis of an ideal air-standard Atkinson cycle with variable specific heat is presented in this paper. The paper outlines the effect of specific heat of working fluid and peak temperature of the cycle on the performance of the cycle efficiency and work output. It showed significant effect on the performance of the cycle over the constant specific heat model. The results obtained from this work can be helpful in …
Published in Trends in Mechanical Engineering & Technology · Vol. 1, Issue 1, 2011 · pp. 22–27 Read article
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Optimization of Performance of Shell and Tube Heat Exchanger with Al2O3 Nanofluid as Working Fluid
Abstract: Heat exchangers are used to transfer heat between two process streams. Improving the rate of heat transfer as well as minimizing the pressure drop is one of the promising fields to focus on. Nanofluids with better thermo-physical properties can increase the heat transfer rate. In the present study, thermo-physical properties of Al2O3 nanofluid are compared with base fluid at different temperatures and the variation of heat transfer coefficient, output temperature …
Published in Recent Trends in Fluid Mechanics · Vol. 2, Issue 2, 2015 · pp. 18–25 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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Ejector Refrigeration Technologies: an Overview
Abstract: The objective of this paper is to provide an overview on ejector refrigeration systems and to provide useful guidelines regarding background and operating principles of ejector. The development history and recent progress in ejector refrigeration systems discussed. For these reasons, the research activities in this sector are still getting higher and higher to solve the essential points that make these systems which are not yet reached to compete with the …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 6, Issue 2, 2019 · pp. 6–21 Read article
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Solar-driven Ejector Refrigeration Technologies: A Study
Abstract: The objective of this paper is to provide a helpful literature study on solar-driven ejector refrigeration systems and to provide useful progress toward back ground and operating principles of ejector. The development history and up to date improvement in solar-driven ejector refrigeration systems are summarized. It shows that solar-driven ejector refrigeration technologies are not only fulfill the needs for different purposes like cooling requirements such as air-conditioning and ice-making and …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 7, Issue 2, 2020 · pp. 29–37 Read article
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Parametric Analysis on Pulsating Heat Pipes
Abstract: Day-by-day the size of the electronic components is being drastically decreased, but at the same time the computing capacities are improved manifold. This presents a new challenge in the thermal management of these components. Pulsating Heat Pipes (PHP) can transport warmth for considerable distances leading to placement of condenser away from compact cabinets. From the literature, it is observed that Acetone, Ethanol and Distilled water are the most widely used …
Published in Recent Trends in Fluid Mechanics · Vol. 4, Issue 1, 2017 · pp. 38–43 Read article
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Analysis of a Medium Temperature Organic Rankine Cycle for Various Mixtures of Organic Fluids
Abstract: AbstractA blend of 70% alkane and 30% carbon dioxide (molar composition) possess low global warming potential, zero ozone depletion potential and are non-flammable. These mixtures are reported to be the potential working fluids for power generation in a transcritical condensing cycle. In this paper, detailed thermodynamic analysis is performed for the medium temperature organic Rankine cycle (ORC) with the mixtures of CO2 with propane or isobutene or isopentane. Among all …
Published in Research & Reviews : Journal of Ecology · Vol. 5, Issue 2, 2016 · pp. 1–9 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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Vegetable Oil as An Eco-Friendly Cutting Fluid for Different Machining Operation: Review
Abstract: AbstractFluids used in machining are used to enhance the production rates and metal cutting quality. Their use causes a threat to environment and also to the worker’s health. So, there is a need to find environmental friendly substitute to conventional mineral oil for fluid used in metal working. Vegetable oil can be used as a metal working fluid because it has certain advantages like good lubrication performance, renewability and biodegradability. …
Published in Research & Reviews : Journal of Ecology · Vol. 4, Issue 3, 2015 · pp. 15–18 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