Ppt on nano fluid by rahul
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The document appears to be authored by Rahul Kalita and MD Junaid from SMCET, Jaipur. It does not contain any other text or information beyond the author names and affiliations.
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Nanofluids
The document discusses nanofluids, which are engineered colloidal suspensions of nanoparticles in a base fluid. It provides an introduction to nanofluids and their properties. The document then covers preparation methods for nanofluids, factors that influence the thermal conductivity of nanofluids like Brownian motion and interfacial layers, common materials used for nanoparticles and base fluids, advantages and limitations of nanofluids, and applications. The overall document serves as a review of nanofluids that discusses their composition, properties, production methods, performance factors, and considerations for use.
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The present work deals with the effect of size of the nano-particle and the liquid like layer formed duo to the natural chemical reaction of the liquid with the metical particle. The particle size and the layer around the particle certainly alter the heat and mass transfer.
NUMERICAL SIMULATION AND ENHANCEMENT OF HEAT TRANSFER USING CUO/WATER NANO-FL...
Heat transfer enhancement using nano-fluids has gained significant attention over the past few years. Nano-fluids are potentially applicable as alternative coolants for many areas such as electronics, automotive, air conditioning, power generation and nuclear applications. Several published researches have concluded that the use of nano-fluid effectively improved the fluid thermal conductivity which consequently enhanced heat transfer performance.
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Applications of nano technology in enhanced oil recovery
Nano technology has applications in enhanced oil recovery by improving characterization of reservoirs, completing other EOR methods, and changing reservoir properties with nanofluids. Nano-sensors and analysis can better characterize rocks and fluids at micro-scales. Nanoparticles can flow into small pore throats and increase interface areas to more easily alter wettability and fluid properties. Several case studies showed nanofluids improved oil recovery over waterflooding, including one that recovered 67% of oil compared to 36% for waterflooding. Fine migration can also be addressed using nanoparticles to coat surfaces and stabilize fines.
AC PERFORMANCE OF NANO ELECTRONICS SEMINAR REPORT
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The document discusses molarity, which is a measurement of concentration that expresses the number of moles of solute per liter of solution. It provides examples of calculating molarity when given the mass of a solute and volume of solution. It also covers diluting solutions, where the moles of solute stay the same but the concentration decreases as volume increases. Molarity can be used to determine the moles, mass, or volume of a solution component when any two pieces of information are known.
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Nanofluids
The document discusses nanofluids, which are engineered colloidal suspensions of nanoparticles in a base fluid. It provides an introduction to nanofluids and their properties. The document then covers preparation methods for nanofluids, factors that influence the thermal conductivity of nanofluids like Brownian motion and interfacial layers, common materials used for nanoparticles and base fluids, advantages and limitations of nanofluids, and applications. The overall document serves as a review of nanofluids that discusses their composition, properties, production methods, performance factors, and considerations for use.
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The present work deals with the effect of size of the nano-particle and the liquid like layer formed duo to the natural chemical reaction of the liquid with the metical particle. The particle size and the layer around the particle certainly alter the heat and mass transfer.
NUMERICAL SIMULATION AND ENHANCEMENT OF HEAT TRANSFER USING CUO/WATER NANO-FL...
Heat transfer enhancement using nano-fluids has gained significant attention over the past few years. Nano-fluids are potentially applicable as alternative coolants for many areas such as electronics, automotive, air conditioning, power generation and nuclear applications. Several published researches have concluded that the use of nano-fluid effectively improved the fluid thermal conductivity which consequently enhanced heat transfer performance.
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Nano technology has applications in enhanced oil recovery by improving characterization of reservoirs, completing other EOR methods, and changing reservoir properties with nanofluids. Nano-sensors and analysis can better characterize rocks and fluids at micro-scales. Nanoparticles can flow into small pore throats and increase interface areas to more easily alter wettability and fluid properties. Several case studies showed nanofluids improved oil recovery over waterflooding, including one that recovered 67% of oil compared to 36% for waterflooding. Fine migration can also be addressed using nanoparticles to coat surfaces and stabilize fines.
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The document discusses molarity, which is a measurement of concentration that expresses the number of moles of solute per liter of solution. It provides examples of calculating molarity when given the mass of a solute and volume of solution. It also covers diluting solutions, where the moles of solute stay the same but the concentration decreases as volume increases. Molarity can be used to determine the moles, mass, or volume of a solution component when any two pieces of information are known.
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2. When you rub your hands, kinetic energy is transferred from your hands in the form of heat energy.
3. Some disadvantages of fuel include being expensive, polluting, having diminishing resources, taking time to gather, etc.
4. The two important nutrients in a biogas plant are carbon and nitrogen.
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The document discusses heat transfer in shell and tube heat exchangers using nanofluids. It describes how baffle geometry, including baffle angle and spacing, affects heat transfer performance. Experiments were conducted using boehmite alumina nanoparticles suspended in a water/ethylene glycol mixture flowing through the tubes, with flue gas on the shell side. The results showed that a baffle angle of 200 provided the highest overall heat transfer coefficient and heat transfer rate. Cylindrical nanoparticles performed better than other shapes. The minimum entropy generation also occurred for a 200 baffle angle. Overall, the study demonstrated that nanofluids can enhance heat transfer in shell and tube heat exchangers, with performance dependent on baffle design and nanop
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Solar Photovoltaic and Thermal hybrid system helps in optimizing the efficiency of solar pv panel by extracting the heat from the surface of PV module. So, we get electrical and thermal efficiency as product. Normally, water or air is used as working fluid. The seminar topic i.e. this presentation have literature reviews on four main research papers and respective major findings from them. I would recommend the viewers to download the presentation because there is resolution problem while viewing on this website.
The detailed report of this presentation can be seen at :- https://dx.doi.org/10.13140/RG.2.1.1435.3443
nano fluids
Nanofluids are suspensions of nanoparticles in base fluids that have been shown to have enhanced thermal conductivity and heat transfer properties compared to conventional fluids. Nanoparticles are smaller than 100nm and do not settle out of suspension like larger particles. Research at Argonne National Lab developed the concept of nanofluids and two methods for producing them - a two-step process for oxides and a one-step process for metals. Nanofluids have four key features - increased thermal conductivity at low nanoparticle concentrations, strong temperature dependence, nonlinear increases with concentration, and increased critical heat flux. Further research is needed to understand nanofluid structure and dynamics at the nanoscale.
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This document discusses applications of nanofluids in solar thermal systems. It begins by defining nanofluids as fluids containing nanometer-sized particles suspended in a base fluid such as water or ethylene glycol. Some examples of nanofluids are then provided. The document then discusses how nanofluids can improve the efficiency of solar collectors and concentrated solar power systems by enhancing heat transfer compared to conventional working fluids like water or oil. Several studies are summarized that examine the effects of varying nanoparticle properties and concentrations on collector efficiency. The document also considers the economic and environmental impacts of using nanofluids in solar thermal applications.
Nanofluids PPT
This technical seminar presentation discusses nanofluids, which are fluids containing nanometer-sized particles that can alter the heat transfer properties of base fluids. The document outlines various preparation methods for nanofluids, materials used, factors that influence thermal conductivity, advantages and limitations. It also discusses applications in electronics, transportation, industrial cooling and more. Nanofluids show potential as next-generation heat transfer fluids due to characteristics like higher thermal conductivity compared to conventional fluids.
BIO FUEL
Biofuel is a type of fuel derived from biological carbon fixation. Common biofuels include ethanol, vegetable oil, and animal fats. Biofuels are classified into first and second generation types. First generation biofuels are derived from sources like starch, sugar, and vegetable oil using conventional techniques. Examples include biodiesel, green diesel, bioethers, biogas, and syn-gas. Second generation biofuels use more sustainable feedstocks and are still under development, such as cellulosic ethanol. India's biofuel production focuses on cultivating and processing Jatropha plant seeds for biodiesel. While biofuels reduce emissions, their production has disadvantages like requiring considerable land use and having poorer performance
Heat transfer enhancement of nano fluids –a review
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Biogas
Here are the answers to the summary questions:
1. No, energy cannot be created, it can only be transferred or transformed from one form to another.
2. When you rub your hands, kinetic energy is transferred from your hands in the form of heat energy.
3. Some disadvantages of fuel include being expensive, polluting, having diminishing resources, taking time to gather, etc.
4. The two important nutrients in a biogas plant are carbon and nitrogen.
5. This picture shows the process of anaerobic digestion in a biogas plant. Organic waste is broken down by microorganisms in the absence of oxygen to produce biogas, which can be used as an energy source
Presentation:COMBUSTION CHAMBER
The combustion chamber burns a mixture of air and fuel inside jet engines, maintaining stable combustion over a wide range of operating conditions while minimizing pressure loss and distributing the heated exhaust gases uniformly to the turbine. Different combustion chamber designs are used depending on requirements, employing features like recirculation zones, cooling air, and multiple fuel injectors to efficiently combust the air-fuel mixture under varying operating conditions.
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Ppt on nano fluid by rahul
- 35. BY RAHUL KALITA AND MD JUNAID SMCET,JAIPUR