30/01/2018

PhD in Materials Science for Heat Exchangers in the Food Industry

This job offer has expired


  • ORGANISATION/COMPANY
    Université de Lorraine
  • RESEARCH FIELD
    ChemistryInorganic chemistry
    EngineeringThermal engineering
    PhysicsCondensed matter properties
  • RESEARCHER PROFILE
    First Stage Researcher (R1)
  • APPLICATION DEADLINE
    01/05/2018 12:00 - Europe/Brussels
  • LOCATION
    France › Epinal
  • TYPE OF CONTRACT
    Temporary
  • JOB STATUS
    Full-time
  • HOURS PER WEEK
    40
  • OFFER STARTING DATE
    01/10/2018

OFFER DESCRIPTION

Context :

The fouling of heat exchanger surfaces with dairy and egg products is a serious health risk. As no satisfactory solution has been developed until now, this project consists in developing materials that have both good food compatibility and anti-fouling properties, and that are resistant to cleaning procedures. In this context, it is proposed to replace stainless steel with carbon-based hydrophobic materials to reduce fouling while improving the energy efficiency of the exchangers. Moreover, some of these materials will also be used to develop Slippery Liquid Infused Porous Surface (SLIPS) biomimetic surfaces with low contact angle hysteresis, which have a high potential for anti-fouling applications.

 

Work to be performed :

The thesis will consist in designing carbon-based antifouling heat exchangers [1], being at the same time thermal conductor, very resistant to acids and bases, and non-toxic. Three types of materials will be prepared and characterized: (i) bi-continuous hydrophobic composites based on graphite foams of very high thermal conductivity [2]; (ii) vitreous-graphite carbon composites with controlled surface energy and roughness; and (iii) mesoporous carbons with controlled porosity [3-4] to become bases of SLIPS, and treated to become superhydrophobic [5-6]. These studies will therefore require syntheses from thermosetting resins, heat treatments in ovens under inert atmosphere, as well as chemical or physical surface treatments. An essential part of the work will also be devoted to characterisation through a large number of physicochemical analysis techniques (composition, structure, porous texture, surface properties, thermal conductivity, ...) in order to go back to the synthesis and thus to optimise the materials. Numerous exchanges with the consortium partners will be planned for estimating the durability of the materials in real conditions through cleaning-in-place procedures.

 

References:

[1] Wang, Q.; Han, X. H.; Sommers, A.; Park, Y.; T'Joen, C.; Jacobi, A. A review on application of carbonaceous materials and carbon matrix composites for heat exchangers and heat sinks. International Journal of Refrigeration 2012, 35, 7-26.

[2] Jana, P.; Palomo del Barrio, E.; Fierro, V.; Medjahdi, G.; Celzard, A. Design of carbon foams for seasonal solar thermal energy storage. Carbon 2016, 109, 771-786.

[3] Libbrecht, W.; Verberckmoes, A.; Thybaut, J. W.; Van Der Voort, P.; De Clercq, J. Soft templated mesoporous carbons: Tuning the porosity for the adsorption of large organic pollutants. Carbon 2017, 116, 528-546.

[4] Wickramaratne, N. P.; Jaroniec, M. Phenolic resin-based carbons with ultra-large mesopores prepared in the presence of poly(ethylene oxide)-poly(butylene oxide)-poly(ethylene oxide) triblock copolymer and trimethyl benzene. Carbon 2013, 51, 45-51.

[5] Jana, P.; Palomo del Barrio, E.; Fierro, V.; Celzard, A. Undercooling enhancement of phase-change materials encapsulated in hydrophobised graphitic carbon foams. 2017, In preparation.

[6] Delgado-Sánchez, C.; Letellier, M.; Fierro, V.; Chapuis, H.; Gérardin, C.; Pizzi, A.; Celzard, A. Hydrophobisation of tannin-based foams by covalent grafting of silanes. Industrial Crops and Products 2016, 92, 116-126.

More Information

Benefits

Funding:

ANR grant. Please contact us imperatively before end of April 2018

Eligibility criteria

Master diploma completed in 2018 with excellent marks and ranking (top 10%).

Selection process

Selection based on application forms (CV, motivation letter, list of former research works, copy of diplomas, marks and ranking obtained during the curriculum), then Skype interview and/or personal meeting.

Web site for additional job details

Required Research Experiences

  • RESEARCH FIELD
    ChemistryInorganic chemistry
  • YEARS OF RESEARCH EXPERIENCE
    1 - 4

Offer Requirements

  • REQUIRED EDUCATION LEVEL
    Chemistry: Master Degree or equivalent
  • REQUIRED LANGUAGES
    ENGLISH: Excellent
    FRENCH: Good

Skills/Qualifications

The candidate will join the "Biosourced materials" team hosted on the premises of ENSTIB, in Epinal. He/she will have completed training in solid-state chemistry or materials science. He/she will have to demonstrate natural ease and effectiveness with modern analytical techniques on which he/she will be trained to become rapidly independent.

Specific Requirements

A taste for the physicochemistry underlying the phenomena under study (adhesion, wetting, adsorption, pyrolysis, ...) will be a real asset. The candidate will have to be dynamic, curious and perseverant to realise the multiple syntheses, characterizations and interpretations of the results.

Work location(s)
1 position(s) available at
Université de Lorraine - ENSTIB
France
Epinal
88000
27 rue Ph. Seguin

EURAXESS offer ID: 275129

Disclaimer:

The responsibility for the jobs published on this website, including the job description, lies entirely with the publishing institutions. The application is handled uniquely by the employer, who is also fully responsible for the recruitment and selection processes.

 

Please contact support@euraxess.org if you wish to download all jobs in XML.