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Fouling on heat exchangers involves the buildup of unwanted materials like bacteria, organic matter, and minerals on surfaces in contact with liquid. This fouling layer inhibits heat transfer and requires frequent cleaning, increasing costs. Conventional antifouling coatings are too thick and reduce heat transfer efficiency. The new research project aims to develop a novel antifouling coating that maintains heat transfer efficiency while preventing fouling through anti-adhesive, anti-scaling, and anti-microbial properties. This coating could decrease maintenance time by three to four times, providing large financial savings for companies through lower maintenance and energy costs while also benefiting the environment.
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The value of compact heat exchangers CHEs has been recognised in aerospace, automotive, gas turbine power station, and other industries for the last 50 years or more. This is attributed to many reasons, for example manufacturing restrictions, often high efficiency requirements, low cost, and the use of air or gas as one of the fluids in the exchanger. Together with new and improved forms of CHEs, these advances are an excellent opportunity to bring compact heat exchangers into the process industry, particularly where saving energy is an essential target. High energy prices are also encouraging companies to use energy saving strategies at their plants as much as possible. During decades, attempts to increase heat transfer, decrease heat transfer times and eventually improve energy efficiency have been made. Recent advancements in nanotechnology have facilitated the creation of a new type of liquids called nanofluids. Most theoretical and computational experiments have shown that nanofluids demonstrate an improved coefficient of heat transfer relative to their base fluid. This CFD research explores the impact on the performance of straight square compact heat exchangers from Al2O3 water nanofluid flow. The Al2O3 water nanofluids with three weight fractions of nanoparticles i.e. 0.4, 0.8, and 1.2 percent were used. The effect of nanofluid were measured and observed to influence the heat transfer and flow of fluids in a straight square compact heat exchanger. The following conclusions can be drawn based on the provided results, the thermal conductance are approximately 29 higher and the heat transfer are approximately 35 higher in comparison with the conventional fluid i.e. water. Vishal Deshmukh | Prof. Animesh Singhai "Thermal Performance of Diffusion-Bonded Compact Heat Exchangers using Al2O3/Water Nanofluid" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-6 , October 2020, URL: https://www.ijtsrd.com/papers/ijtsrd33508.pdf Paper Url: https://www.ijtsrd.com/engineering/mechanical-engineering/33508/thermal-performance-of-diffusionbonded-compact-heat-exchangers-using-al2o3water-nanofluid/vishal-deshmukh
Green building materials
Green building materials and techniques focus on increasing resource efficiency and reducing environmental impacts. Emphasis is placed on using renewable, recycled, and reclaimed materials to reduce energy and waste. While green buildings may have higher initial costs, they provide long-term cost savings through reduced operating expenses and increased health and productivity benefits. Emerging technologies like nanotechnology also show potential to further increase the sustainability and performance of building materials.
Building science plastics
Building science is concerned with the technical performance of buildings, building materials, and building systems. It includes construction technology, material science, urban design, architecture, and heat and mass transport physics. The goals are to improve building performance over the service life, allow demolition and reuse/recycling, and address issues like climate change adaptation. Plastics provide advantages in building applications like energy efficiency, durability, light weight, and recyclability, but also have disadvantages as non-biodegradable pollutants.
Mike Pitts EDN mar 2010
The document discusses sustainable design approaches for the chemistry-using industries. It proposes designing products and processes for the entire lifecycle, including for separation and recovery of materials. Examples are given of innovative coatings for ship hulls to reduce fouling without biocides and more efficient spray-on heating elements. The goal is to stimulate innovation that delivers value through more sustainable solutions.
H2 & Emerging Technologies for sustainable energy - 20 mai 2020
Webinaire, organisé le 20 mai 2020, lié aux nouvelles technologies émergentes du secteur énergétique, dont l'hydrogène.
Programme et orateurs :
- Emerging technologies for sustainable energy - Engie Research, Jan Mertens (MSc, PhD), Chief Science Officer (En)
- Hydrogène, le chaînon manquant - HydrogenAdvisors, Raphaël Schoentgen, ancien President de Hydrogen Europe et du FCHJU (Fr)
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Iea bioenergy t32_torrefaction_review (overview of technologies)
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This report provides an overview of the current status of torrefaction technologies and their market perspectives. It summarizes the basic principles of torrefaction, where biomass is heated to 250-350°C in a low oxygen environment, resulting in the partial removal of volatile matter. This makes the biomass brittle and hydrophobic. The report also outlines the technical and economic advantages of torrefied biomass compared to raw biomass and assesses several torrefaction technology types and their commercial initiatives. It identifies the key challenges for market implementation as technical performance, economics, and regulatory acceptance.Chapter 8
The document discusses the requirements and design principles for an eco-industrial park. It aims to integrate industries within the park to allow for sharing of resources and byproducts in an environmentally sustainable way. Key requirements include including facilities like a plastic recycler, paper plant, sugar industry and related infrastructure, waste management systems, power plants, administrative buildings, housing, and security. Design principles focus on energy and resource efficiency, reuse and recycling, and minimizing environmental impacts.
Green building prepared eh
This document is a project report submitted by a group of 6 students at V.V.P. Engineering College in Rajkot, Gujarat, India. The report discusses green building concepts, features, history, benefits, and materials. It provides definitions of green building, describes features like efficient energy and water use, and renewable materials. The report outlines environmental benefits like reduced emissions, economic benefits like cost savings, and social benefits like improved health and well-being. Examples of green building materials discussed include straw bales and grasscrete.
Jochem 2002 Steps towards a 2000 Watt-Society Ex Summ
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Executive summary
In the coming decades, the threat and consequences of
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production in the Near East will compel industrialised nations
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important in scientific, entrepreneurial, and political realms.
Demand for highly energy-efficient technologies will rise
steeply, and firms that can provide them will prosper. The
identification of energy-efficient technologies and related
energy conservation potentials undertaken in this pre-study is
a first step toward designing a R&D strategy that is consistent
with the need to evolve towards a 2000 Watt per capita society.
Reaching this level by 2050 implies reducing primary energy
use from 1200 to 460 PJ per year, despite a projected 65%
economic expansion.
Jochem, Eberhard; Favrat, Daniel; Hungerbühler, Konrad; Spreng, Daniel; von Rohr, Philippe-Rudolf; Wokaun, Alexander; Zimmermann, Mark
DeremCo_Project.pptx
The DeremCo project aims to develop innovative solutions to unlock the potential of end-of-life composite materials for reuse in new manufacturing applications. The project will integrate different innovation actions across sectors like wind, automotive, and aeronautics to enhance the profitability of composite recycling and reuse. It will demonstrate circular economy solutions for processing and reusing fiber-reinforced plastics at an industrial scale, de-risking future private investments through its large consortium of 30 partners across Europe. The technical enablers developed will include controlled dismantling processes and digital tools for material traceability to support industrial reuse of composites.
Improving envelope thermal insulation in construction projects using nanotech...
Abstract
Conservation of energy consumption in the construction industry is becoming more important than ever due to global issues
related to the increased energy demand. Energy consumption in heating and cooling systemsfor commercial and residential
buildings is a major portion of the overall energy consumption. One important approach to respond to this type of consumption is
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Nanotechnology as an emergent science and engineering field is developing solutions to enhance the resistance value of different
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area of technology application in addition to the commercial products currently being offered in the construction market.
Findings indicate that the relatively high cost of the nano-products is due to lack of both mass production and familiarity of public
to these products.
Key Words: Thermal Insulation, Nano Insulation, Envelope, Heat Resistance, Construction Projects.
Nano green building
This document provides an overview of the potential for nanotechnology to advance green building goals through new materials and products. It finds that nanotechnology can significantly reduce energy use, waste, and pollution from buildings. Current applications include insulating and self-cleaning nanocoatings. Near-future applications include nano-enhanced solar cells, lighting, and air/water filtration. More distant applications may include nano-enhanced structural materials. The document outlines a three-phase timeline and estimates the nanotechnology market in building will grow from less than $20 million currently to nearly $400 million by 2016. It also discusses drivers, obstacles, and future trends regarding the use of nanotechnology in green building.
Sustainable building practices and materials in relation to.pdf
The document discusses sustainable building practices and materials in New Zealand construction. It addresses three main pillars of sustainability: environmental, economic, and social. Environmentally, it focuses on using sustainable and low-impact materials, minimizing construction waste, and reusing existing structures. Economically, it emphasizes reducing water and energy consumption. Socially, it mentions providing employment opportunities and improving worker conditions.
RESEARCH PAPER ON GREEN BUILDING TRATEGIES IN HIGH RISE IN COMPOSITE CLIMATE
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Application of Nano technology in environmental issues
This document discusses several ways that nanotechnology can be used to improve the environment and address pollution issues. It describes how nanoparticles can be used to more efficiently clean air and water pollution by catalyzing chemical reactions to break down harmful pollutants. Nanotechnology is also being researched to make alternative energy sources like solar cells and wind turbines more cost effective through materials improvements. The document concludes that nanotechnology has significant potential to address environmental challenges through applications like pollution remediation, cleaner manufacturing techniques, and more efficient renewable energy.
Theoretical Model Computations for Different Components of a Hot Box Type Sol...
Many countries having tremendous solar potentials are also the victim of the power crises since the available solar energy is not utilized efficiently. It has been recognized that the widespread use of solar thermal appliances (STA) for domestic work is being held back by excessive cost, low efficiency, high weight, and inconvenience of user and by lack of confidence in the long term durability of the material. In the present work, the limitations of materials used in various components of commercial available STA have been underlined and it has been shown that use of polymeric materials as specific component in solar thermal appliances can solve most of the existing limitations and may improve the efficiency of the existing appliances. In this paper theoretical model computations have been done for different components of a hot-box type solar cooker viz., glaze, insulation and casing material for the spectral transmittance, the solar flux absorbed and the optical efficiency, thermal efficiency, heat loses, weight, thermal profile and adjusted cooking power for several suitable materials, both conventional as well as new polymeric materials. Significant improvement in all the mentioned characteristic properties /figures of merit of the solar cooker can be achieved if right combination of polymeric materials is used in making glaze, insulation and casing. The present study offers that component improvements of a system results into cost reduction, extended lifetime and makes system easy to handle. This shall surely help in popularization of the solar appliances and enhancement of eco-friendly environment.
Fabrication of new ceramics nanocomposites for solar energy storage and release
The carbides nanostructures have huge applications in renewable energy fields such as the saving of solar energy and release which attributed to the good their properties (thermal, electrical, mechanical, optical and chemical). So, in this paper, the solar energy storage and release of carbides nanoparticles/water for building heating and cooling applications have been investigated with different concentrations of metals carbides nanoparticles (tantalum carbide-silicon carbide). The results showed that the melting and solidification times for thermal energy storage and release decrease with an increase (TaC-SiC) nanoparticles concentrations. From the obtained results, the TaC/SiC nanostructures/ water nano-system are considered as promising materials for solar energy storage and release with high efficiency and high gain (more than 50% compare with the water). Also, the TaC/SiC may be used for heating and cooling fields with good performance and high gain.
MG7101 Engineering Development Project.docx
The document discusses sustainable building practices and materials in New Zealand civil construction. It addresses three main pillars of sustainability: environmental, economic, and social. Environmentally, it focuses on using sustainable and low-impact materials, minimizing construction waste, and reusing existing structures. Economically, it emphasizes reducing water and energy consumption. Socially, it discusses providing employment opportunities and improving worker conditions. Overall, the document argues that collaborative efforts between various stakeholders can help develop more sustainable technologies and practices across the construction industry in New Zealand.
Steel Making Methods
Nucor Corporation has adapted to changing market conditions and found success through technology and innovation. It moved from the nuclear industry to steel in 1964 after facing bankruptcy. Nucor is known as a low-cost and technologically innovative steel producer, using energy efficient electric arc furnaces and mini-mills. It supplements raw materials with scrap metal and through continuous innovation has maintained a competitive advantage in the steel industry.
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This document describes the S-HOUSE, a passive solar building constructed using renewable resources like straw bales. The S-HOUSE combines passive solar design principles with sustainable materials to serve as an office, demonstration building, and information center. Key innovations include the straw bale wall construction, specially designed screws to attach materials to the straw bales, and a biomass heat storage stove. Long-term monitoring of the building will provide performance data on the renewable materials to support broader adoption of sustainable construction practices.
Similar to Huge savings on the surface (20)
Thermal Performance of Diffusion Bonded Compact Heat Exchangers using Al2O3 W...
Thermal Performance of Diffusion Bonded Compact Heat Exchangers using Al2O3 W...
H2 & Emerging Technologies for sustainable energy - 20 mai 2020
H2 & Emerging Technologies for sustainable energy - 20 mai 2020
Iea bioenergy t32_torrefaction_review (overview of technologies)
Iea bioenergy t32_torrefaction_review (overview of technologies)
Jochem 2002 Steps towards a 2000 Watt-Society Ex Summ
Jochem 2002 Steps towards a 2000 Watt-Society Ex Summ
Improving envelope thermal insulation in construction projects using nanotech...
Improving envelope thermal insulation in construction projects using nanotech...
Sustainable building practices and materials in relation to.pdf
Sustainable building practices and materials in relation to.pdf
RESEARCH PAPER ON GREEN BUILDING TRATEGIES IN HIGH RISE IN COMPOSITE CLIMATE
RESEARCH PAPER ON GREEN BUILDING TRATEGIES IN HIGH RISE IN COMPOSITE CLIMATE
Application of Nano technology in environmental issues
Application of Nano technology in environmental issues
Theoretical Model Computations for Different Components of a Hot Box Type Sol...
Theoretical Model Computations for Different Components of a Hot Box Type Sol...
Fabrication of new ceramics nanocomposites for solar energy storage and release
Fabrication of new ceramics nanocomposites for solar energy storage and release
Huge savings on the surface
- 1. Fouling on heat exchangers involves the gradual build-up of undesired materials of diverse origin – microorganisms such as bacteria, organic matter and inor- ganic minerals – on surfaces that are in contact with liquid. This layer of dirt on the heat exchang- er surfaces inhibits the heat transfer properties and necessitates frequent cleaning, thus becoming a costly affair for companies. Conventional solutions cannot handle the heat Conventional antifouling coatings used in marine installations are unsuitable for heat exchanger applications because they are so thick that they reduce the heat transfer efficiency to an unaccept- able level. The aim of the new research project is to develop a new genre of antifouling coating technology for heat exchanger applications without compromising heat transfer efficiency. Due to the complex types of fouling matter, the coating chemistry will be optimised to incor- porate anti-adhesive, anti-scaling and anti-microbial properties. Good for the pocket and the environment Developing antifouling solutions for heat exchangers in water installations will not only provide a competitive advan- tage for industrial partners, but will also lead to significant financial and energy savings for many industries that use heat transfer processes. Such savings are expected to apply to maintenance and energy costs in particular. The researchers believe that the proposed coating technology could achieve a three- to four-fold decrease in maintenance time without compro- mising the heat transfer property. This means dramatic financial savings for companies while the reduced energy consumption benefits the environment as well. Knowledge for the future The project will also include systemat- ic studies of mineral fouling on metal surfaces to gain a fundamental new understanding of the phenomenon. The new knowledge will be published in sci- entific papers and will also be included in future teaching material. “It’s important to save energy and money, but it’s just as important for us to make knowledge available for future generations,” says Assistant Professor Joseph Iruthayaraj. Huge savings on the surface Researchers in the fields of surface chemistry, surface structuring and biofouling are teaming up with industrial partners to develop energy-saving coatings for heat exchanger surfaces that may last up to four times longer than normal. project facts TITLE Heat transfer effective antifouling solutions for heat exchange surfaces SCHEDULE 2014–2017 FINANCIAL FRAMEWORK 15 million DKK, The Danish National Advanced Technology Foundation PARTNERS Grundfos, Accoat and Alfa Laval Corporate AB CONTACT Assistant Professor Joseph Iruthayaraj ji@eng.au.dk 27ADVANCED MATERIALS AND PROCESSES