15. ws effective use of thermal energy in industry_ik4-ceit

VI CDTI-NEDO JOINT WORKSHOP

Energy harvesting with thermoelectric materials (II)

CEIT-iK4

PhD J. AlkortaStaff Researcher

at CEIT

Bilbao, 23rd June 2016

#WasteHeat The Effective use of termal energy in industry

01CEIT-iK4

Founded in 1982 by the School of Engineering of the University of Navarra

Independent private non-profit institution

Our mission is to serve society and industry by

Developing research projects

Training young researchers

CEIT-iK4: Institutional profile


02CEIT-iK4: Funding and key figures

Key figures

Personnel

Total: 250Doctors: 114PhD students: 65

Scientific production (annual avrg 2012-14)

Journal papers: 84 Conferences: 100PhD theses: 31

Basic oriented research /Technology generation

52,6%13,8%

33,6% Industry / Private

Base funding Basque Gov.

Competitive public funding

(EU, Central Gov., Basque Gov.)

Contract research / Technology transfer

Funding sources and type of research

Budget 2014: 14.5 million euros


03CEIT-iK4: Structure

Materials and Manufacturing

Steel

Metal powder

Additive manufacturing

Mechanical assessment

Information and Communications Technologies

Data Analysis and Information Management

Sensors and communications

Transport and Energy

Electric vehicle

Smart grids / EnergyIndustrial water

Water and Health

Urban water

RailwayModelling

4 Divisions to give answers to the core sectors


03CEIT-iK4: Research in thermoelectric materials


Steel

Metal powder

Additive manufacturing


Information and Communications Technologies

Data Analysis and Information Management

Sensors and communications

Transport and Energy

Electric vehicle

Smart grids / EnergyIndustrial water

Water and Health

Urban water

RailwayModelling

Research in thermoelectric materials involve two groups in Materials Division


Metal powder




Metal powder




Research in thermoelectric materials involve two groups in Materials Division

Process highly textured and nanostructured bulk thermoelectric materials by high pressure

torsion (HPT)

“Functional materials processed by SPD and their in situ

micro/nanomechanical testing in SEM”


Advanced manufacturing strategy5 priority áreas

05ACTIMAT Collaborative Project

Collaborative Project that involve 15 partners fromthe Basque Research and Innovation Network:

Figures (2012-2014):>50 PhD thesis>500 papers in indexed journals>500 Contributions to Intl. Conferences

Fabricación Ecoeficiente y Competitiva

Medios de Producción Inteligentes y Seguros

Nuevos Modelos de Negocio y Servicios de alto valor añadido

Fabricación Inteligente, Colaborativa y Distribuida

Nuevos Materiales y Estructuras Complejas

http://www.bcmaterials.net/


Advanced manufacturing strategy5 priority áreas

05ACTIMAT Collaborative Project

Collaborative Project that involve 15 partners fromthe Basque Research and Innovation Network:

Figures (2012-2014):>50 PhD thesis>500 papers in indexed journals>500 Contributions to Intl. Conferences

Fabricación Ecoeficiente y Competitiva

Medios de Producción Inteligentes y Seguros

Nuevos Modelos de Negocio y Servicios de alto valor añadido

Fabricación Inteligente, Colaborativa y Distribuida

Nuevos Materiales y Estructuras Complejas

In few words, ACTIMAT is the bigMaterials “FabLab” in terms of theglobal Basque Industry 4.0 strategy

http://www.bcmaterials.net/



G. Jeffrey Snyder & Eric S. TobererNature Materials 7, 105 - 114 (2008)

Thermoelectric devices directly

convert heat waste into electricity

Seebeck effect

TSV np

Thermoelectric devices can be also used as solid state cooling modules

Iq np

Peltier effect


Main limitations:

1) Low efficiency

2) Typical raw materials are toxic /

scarce: Te, Pb, Ge,...

3) Limited applications


Main advantages:

1) Recycles wasted heat energy

2) Scalability

3) No mobile parts No maintenance

C.B. Vining, Nature Mat. 8, 83 (2009)

At large scale, thermodynamicengines more efficient than TE



TS

ZT

2Efficiency is driven by:

C.B. Vining, Nature Mat. 8, 83 (2009)



Research in recent years focused on:

Improve efficiency of existing TE materials

(Improve ZT)

Search for new non-toxic/abundant TE

compounds

X. Zhang, L.-D. Zhao / Journal of Materiomics 1 (2015) 92-105



Research at CEIT:

Improve efficiency of existing TE materials

(Improve ZT)

Novel processing technique based on highpressure torsion for improved bulk TE materials:

Nanostructurization

Texturing



Research at CEIT:

TE materials from HPT:

Main advantages:

1) Up-scalable: Massive pellets

2) Suitable for other TE systems:

3) Raw material: Powder

4) Improved ZT in Bi-Te system



Research at CEIT:

TE materials from HPT:

Main advantages:

1) Up-scalable: Massive pellets

2) Suitable for other TE systems:

3) Raw material: Powder

4) Improved ZT in Bi-Te system

HPT-nanoBiSbTe

JA Santamaría. PhD Thesis. TECNUN (2015)JA Santamaría, J Alkorta, J Gil Sevillano. J Mater Res 30 (17), 2593-2604 (2015)


11Summary/Conclusions

Thermal energy harvesting by thermoelectric materials

The interest on thermoelectric materials for harvesting waste heat in industry is continuously

increasing due to their simplicity, compactness and reliability.

However, the poor efficiency of TEGs limits their use to small-medium sized applications.

Still, they may play an important role in the road to Industry 4.0, where monitoring and wireless

sensoring could boost the use of TE materials

The research in new materials is crutial to improve the TE efficiency with non-toxic and cheaper

raw materials.

THANK YOU

どうも有難う御座います

ESKERRIK ASKO

GRACIAS

Jon Alkorta

[email protected]

CEIT-iK4

For further information

mailto:[email protected]

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