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Nanoscale Enhanced Characterisation of SOlar selective coatings

Objective

Optical coatings are commonly deposited over large areas on different substrates: glass, metals (steel, aluminium...) or polymeric foils (PET...). Production processes involve normally large machinery including many times roll-to-roll processes to deposit multilayers over several square meters of substrates. However, properties of these coatings depend strongly on nanometric properties: composition, crystallography, nanostructure, roughness, homogeneity... Solar selective coatings are considered a special case of optical coatings combining several layers with different properties, mainly: antireflection, solar absorbance and infrared mirror.
Nowadays the most demanding solar selective coatings are those used in tubes of high temperature parabolic trough solar collectors. Coatings have to operate in an aggressive environment (temperatures above 400ºC, thermal cycling) during 20-25 years. Besides, further developments require higher temperatures, improved scratch resistance and working under oxidant atmospheres (small quantities of water vapour and oxygen). In order to get significant advances in this field it is essential to have:

1. Nanoscale structure related requirements (nanoroughness, nanohardness, crystallography, composition, vibrational modes) and the correlation with performance requirements: optical and, more important, life expectancy.
2. Standard characterisation and degradation protocols to serve as a powerful tool to coating developers, producers and end users for life prediction and to push the collector parameters (temperatures and environment) to higher efficiency parameters.

The main idea behind this NECSO project is to provide tools to the end users namely solar plants builders, to guarantee that the selective coating will work properly during 20 to 25 years. Novel experimental methods for testing materials under extreme conditions (temperature and radiation) are needed providing a deeper understanding of the interaction of electromagnetic radiation with nanomaterials, as basis for design of new spectrally selective absorber coatings. Nanoscale characterisation (roughness, AFM, nanoindentation, scratch-adhesion, crystallography by FESEM-EBSD, Raman, RX, XPS, etc) will correlate the nanostructure parameters with coating performance. The resulting outcomes are expected to contribute significantly to the infrastructure of the solar energy research, development and industrial activities worldwide. Additionally, the designed testing protocols should help coating developers to compare available layers and newly designed ones, with standard procedures. Finally, testing procedures will also be of utter importance to have a fast quality control on the coatings, typically in 4 meter tubes, over some tens of kilometres in a common cylinder parabolic solar plant.

Field of science

  • /engineering and technology/materials engineering/coating and films
  • /natural sciences/earth and related environmental sciences/geology/mineralogy/crystallography
  • /natural sciences/chemical sciences/inorganic chemistry/inorganic compounds
  • /engineering and technology/environmental engineering/energy and fuels/renewable energy/solar energy
  • /social sciences/economics and business/economics/production economics
  • /natural sciences/chemical sciences/inorganic chemistry/metals
  • /engineering and technology/nanotechnology/nano-materials

Call for proposal

FP7-NMP-2012-SME-6
See other projects for this call

Funding Scheme

CP-TP - Collaborative Project targeted to a special group (such as SMEs)

Coordinator

FUNDACION TEKNIKER
Address
Calle Inaki Goenaga 5
20600 Eibar Guipuzcoa
Spain
Activity type
Research Organisations
EU contribution
€ 467 979,37
Administrative Contact
Alicia Piñeiro (Ms.)

Participants (6)

ARIES INGENIERIA Y SISTEMAS S.A

Participation ended

Spain
EU contribution
€ 128 451,76
Address
Paseo De La Castellana
28046 Madrid
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Hugo Cachafeiro Andrade (Mr.)
CSM INSTRUMENTS
Switzerland
EU contribution
€ 284 109
Address
Rue De La Gare 4
2034 Peseux
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Jiri Nohava (Dr.)
KEMIJSKI INSTITUT
Slovenia
EU contribution
€ 255 750
Address
Hajdrihova 19
1000 Ljubljana
Activity type
Research Organisations
Administrative Contact
Maja Mirič
TECNOLOGIA DE VACIO SLU
Spain
EU contribution
€ 281 311,62
Address
Avenida Valdelaparra 27
28100 Alcobendas
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
José Rafael Gutierrez De Calderón (Mr.)
KATHOLIEKE UNIVERSITEIT LEUVEN
Belgium
EU contribution
€ 220 950
Address
Oude Markt 13
3000 Leuven
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Monique Vanhaeren (Ms.)
CENTRALE RECHERCHE SA
France
EU contribution
€ 216 519
Address
Rue Jean Goujon 8
75008 Paris
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Danielle Chevaillier (Mr.)