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Desarrollo de nanofluidos para mejorar la tecnología de transferencia de calor

Resumen

Tipo:
Oferta Tecnológica
Referencia:
TOUK20190918003
Publicado:
20/11/2019
Caducidad:
20/11/2020
Resumen:
Un centro de investigación británico está interesado en desarrollar sus nanofluidos para mejorar la tecnología de transferencia de calor y ampliar su actividad en nuevos mercados y sectores. Los nanofluidos son suspensiones de nanopartículas dentro de un fluido. Normalmente las nanopartículas tienen unas dimensiones inferiores a 100 nm y se diluyen en agua a una concentración inferior al 1%. Según investigaciones previas, los nanofluidos mejoran propiedades como la conductividad térmica, viscosidad y coeficientes de transferencia de calor por convección en comparación con los fluidos base, como agua o aceite. El objetivo es utilizar los nanofluidos para mejorar el enfriamiento de superficies en reactores de fusión expuestos a flujos de calor extremos. El centro de investigación busca socios con el fin de establecer acuerdos de licencia o investigación.

Details

Tittle:
Development of Nanofluids for improved heat transfer technology
Summary:
UK based research organisation looking to develop its Nanofluids for improved heat transfer technology by expanding in to new markets and sectors. The collaboration would be via a licensing or research agreement with the aim of developing the use of nanofluids to improve the cooling of surfaces within fusion reactors that are exposed to extreme heat-fluxes.
Description:
A research organisation based in the UK is looking to develop their Nanofluids for improved heat transfer technology in to new markets and sectors. This would be via a licensing agreement developing the use of nanofluids to improve the cooling of surfaces within fusion reactors that are exposed to extreme heat-fluxes.

Nanofluids are suspensions of nanoparticles within a fluid. The nanoparticles are typically less than 100nm and are usually diluted within water at a concentration of less than 1%. From previous investigations nanofluids have been found to enhance properties such as thermal conductivity, viscosity, and convective heat transfer co-efficients when compared to base fluids such water or oil.

Nanoparticles being investigated for nuclear fusion applications include: alumina, ceramics, and carbon nanotubes, as these are known to increase both the conductive and convective heat transfer coefficients by up to half an order of magnitude (5x), and to increase of critical heat flux of current coolants for boiling heat transfer by up to an order of magnitude (10x).

Two collaborative research projects are currently underway within the nuclear fusion industry to further understand the physics leading to the increased heat transfer rates. As nuclear fusion involves an extremely harsh environment, it can provide a highly robust technology that can be transferred into other industries to develop competitive advantages. In parallel, an experimental rig has been constructed with the aim of measuring the long-term effects of nanofluid flows inside a fusion-relevant heat exchanger. Nanoparticle quality, settling and surface erosion are also being assessed to determine the long-term effects that may be incurred by the system.

Initially developed for fusion to improve the convective cooling of the high heat flux HyperVapotrons. Nanofluids have the potential to enhance any application that uses water or oil-­based convective cooling such as but not limited to automotive, electronics, semiconductors, medical, nuclear, aerospace, heat exchangers or Gas turbines
Advantages and Innovations:
Nanofluids exhibit dramatically improved thermophysical properties in comparison with conventional coolants.This involves an increase in both the conductive and convective heat transfer coefficients by up to half an order of magnitude (5x), with up to an order of magnitude (10x) increase of critical heat flux of current coolants for boiling heat transfer. Such improvements in coolant performance are relevant especially for high heat flux applications including gas turbines, synchrotron X-ray components, and high-power laser diodes. Improvements in thermophysical properties translate to increased efficiency, which can mean lower construction and running costs as well as increased energy efficiency. These aspects also contribute to the green credentials of a technology or process.
Stage of Development:
Under development/lab tested
IPs:
Secret Know-how

Partner sought

Type and Role of Partner Sought:
Seeking research and development collaboration partners from automotive, electronics, medical, nuclear, aerospace or other industries that use heat exchangers or gas turbines to develop this technology outside of the fusion industry via a licence agreement.

Client

Type and Size of Client:
R&D Institution
Already Engaged in Trans-National Cooperation:
No
Languages Spoken:
English

Keywords

Technology Keywords:
02011005 Exploración y tecnología espacial
05005 Micro y nanotecnología
01002007 Nanotechnologies related to electronics & microelectronics