Two new Post Doc Offers (9 Feb. 2012)

Two new offers of post doc In Gemtex :

- Characterization and design of a multilayer textile structures used in PPE to evaluate and optimize comfort, and performances properties of firefighters clothing in relation to fire safety for wearers.

-  Modeling of a multilayer textile structures used in PPE to evaluate and optimize comfort, and performances properties of firefighters clothing in relation to fire safety for wearers.

FIRST POST DOC

 

Company and presentation of the subject:
As part of a European project, in partnership with HEI (Hautes Etudes d?Ingénieur), ENSAIT (Ecole Nationale Supérieure des Arts et Industries Textile) recruits in the GEMTEX laboratory (GEnie des Matériaux TEXtiles) a post-doctoral researcher for a period of 24 months. In partnership with several industrial companies, this project will contribute to the study of thermoregulation, heat and moisture transfers in a multilayer textile for Personal Protective Equipment (PPE) for firefighters to improve the comfort, performances and security.

General overview and objectives:
Protective clothing due to extremely hot temperature and projections of water and chemical needs high thermal and water resistances. The thermal comfort of the wearer is dependent on the clothing relationship with the body, its activity and the environment, since garment can be an obstacle to the heat and moisture transfers. While heat transfers at low activity are mainly governed by conductive, convective, and radiative heat transfer mechanisms, at high activity levels (or warm conditions), evaporation becomes predominant, and thermal sensation is mainly affected by the liquid moisture management. During fire exposure, the environment temperature is much higher than the body one?s, so heat transfers occur from the environment to the body and promote heat stress. Indeed, as protective clothing has great insulation, heat cannot release from the body to cool it. When the temperature increases in the garment, the user begins to sweat and this moisture is a real problem for the safety user as it cannot be well diffused in the garment by vaporization and cool body. It is entrapped into the garment and as the temperature is still increasing in the garment, burn injuries occur by hot steam. The aim of this
The aim of this researcher is to bring its expertise in advanced textile materials especially in terms of heat and mass transfers. (S)He will contribute to the analysis, characterization, and definition of specifications for textiles in the multilayer assembly and their characterization clothed to the using conditions.


Title of the study:
Characterization and design of a multilayer textile structures used in PPE to evaluate and optimize comfort, and performances properties of firefighters clothing in relation to fire safety for wearers.

Requirements/ Profile:
- PhD, in materials, and/ or energetic, the candidate comes from a solid textile training;
- Knowledge in heat and mass transfers associated in fibrous media;
- Experiences in thermal physiology, thermal comfort, and / or in the field of PPEs is appreciate;
- The candidate is curious and dynamic. In close collaboration with industry partners, the candidate has good relationship.

Contract conditions:
24 months from 01 June 2012.
Location: GEMTEX (Roubaix, 59) with an attachment to HEI (Lille)
Salary: 35 k ?/ year.
Contact: Gauthier Bedek
Email:  gauthier.bedek@hei.fr 

 

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SECOND POST DOC

 

Company and presentation of the subject:
As part of a European project, in partnership with ENSAIT (Ecole Nationale Supérieure des Arts et Industries Textile), HEI (Hautes Etudes d?Ingénieur) recruits in the GEMTEX laboratory (GEnie des Matériaux TEXtiles) a post-doctoral researcher for a period of 24 months. In partnership with several industrial companies, this project will contribute to the study of thermoregulation, heat and moisture transfers in a multilayer textile for Personal Protective Equipment (PPE) for firefighters to improve the comfort, performances and security.

General overview and objectives:
Protective clothing due to extremely hot temperature and projections of water and chemical needs high thermal and water resistances. The thermal comfort of the wearer is dependent on the clothing relationship with the body, its activity and the environment, since garment can be an obstacle to the heat and moisture transfers. While heat transfers at low activity are mainly governed by conductive, convective, and radiative heat transfer mechanisms, at high activity levels (or warm conditions), evaporation becomes predominant, and thermal sensation is mainly affected by the liquid moisture management. During fire exposure, the environment temperature is much higher than the body one?s, so heat transfers occur from the environment to the body and promote heat stress. Indeed, as protective clothing has great insulation, heat cannot release from the body to cool it. When the temperature increases in the garment, the user begins to sweat and this moisture is a real problem for the safety user as it cannot be well diffused in the garment by vaporization and cool body. It is entrapped into the garment and as the temperature is still increasing in the garment, burn injuries occur by hot steam. The aim of this
The aim of this post-pHD is the design of a modelisation tool to simulate the performances of a multilayer fabric in terms of heat and mass transfers and thermal comfort from the characterization of each layer of the complex multilayer of firefighters garment.
The aim of this researcher is to bring its expertise in the field of modeling and simulating of advanced textile materials especially in terms of coupling transfers in connection with the comfort, performance and security.
It will contribute to the analysis, modeling, and validation of models associated with a specific set of data characterizing the textiles sub-layer and multilayer products. It will implement the consolidation of all models (layer-layer and layer to layer) with a step of simulation.


Title of the study :
Modeling of a multilayer textile structures used in PPE to evaluate and optimize comfort, and performances properties of firefighters clothing in relation to fire safety for wearers.

Requirements/ Profile :
- PhD, in materials, energetic, modeling, data analysis...  the candidate comes from textile training with good knowledge of mathematical tools;
- Knowledge in heat and mass transfers associated in fibrous media;
- Experience in thermal physiology, thermal comfort, and / or in the field of PPEs is appreciate;
- The candidate is curious and dynamic. In close collaboration with industry partners, the candidate

Contract conditions:
24 months from 01 June 2012.
Location: Lille (59) with an attachment to GEMTEX (Roubaix)
Salary: 35 k ?/ year.
Contact:  Gauthier Bedek
Email:  gauthier.bedek@hei.fr  

 

 

   

 

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