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EURAXESS

MSCA-COFUND-CLEAR-Doc-PhD Position#CD22-34: DECARBONISING CITIES IN THE CLIMATE CHANGE CONTEXT: APPLICATION TO THE TERTIARY BUILDING

13/10/2022

Job Information

Organisation/Company
Université Gustave Eiffel
Department
MAST-GPEM
Research Field
Engineering
Engineering » Thermal engineering
Engineering » Simulation engineering
Researcher Profile
First Stage Researcher (R1)
Country
France
Application Deadline
Type of Contract
Temporary
Job Status
Full-time
Hours Per Week
35
Is the job funded through the EU Research Framework Programme?
H2020 / Marie Skłodowska-Curie Actions COFUND
Marie Curie Grant Agreement Number
101034248
Is the Job related to staff position within a Research Infrastructure?
No

Offer Description

Context and Scientific issues

Recent work (Andrić et al. 2021) has shown that the energy demand for heating and cooling buildings will significantly increase, respectively up to 52% and 1050%, depending on the international geographical position. For example in France, the building sector is also one of the largest energy consumers. According to the data recorded by the French energy agencies, the energy consumption, mainly electrical, dedicated to air conditioning, represents, between 2017 and 2020, about 21 TWh/year, i.e. 10% of the total consumption dedicated to the tertiary buildings. Recent IPCC position papers (Dodman et al. 2022) have highlighted urban energy harvesting related to the magnitude of the temperature increase at a higher frequency level resulting from intense heatwave. As a result, air conditioning of tertiary buildings will be increasingly used, generating an increase in energy consumption. For example, the data centre building uses an HVAC (Heating, Ventilation and Air Conditioning) installation that controls the temperature and humidity of the server room to prevent the IT equipment from overheating. These installations account for about 50% of the electricity consumption of such a building. The reduction in the use of HVAC systems in temperate climates is achieved through free-cooling, which involves using outside air that is cooler than the temperature of the data centre's indoor environment. To extend the benefit, we have therefore recently proposed the use of an energy storage system based on sustainable granular materials, which needs to be placed upstream of the air conditioning system (Bouchenna et al. 2021). A packed bed of earthen materials was thermally characterized using multiple heating/cooling cycles according to ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers) standards. The results show that particle diameter and the aerodynamic regimes exert significant effects on the energy buffering capacity. A relationship was proposed to link the specific mass power of the energy storage system, the architecture of the internal heat exchanger and the Reynolds number of the pores with the aim of designing mud bricks. The next two main research directions of this PhD proposal are to set up experiments and their numerical twin to define:

- the behavior of thermal hysteresis as a function of material properties and process parameters,

- the role of microporosity in the perspective of latent heat storage.

Scientific program

One of the main objectives of the PhD work will be to conduct numerical simulations at pore- and wall-scales, which will be compared to experiments performed in environmental controlled conditions. The scientific program will follow the four mains stages:

1. The state of art related to the characterization of the heat and mass transfer through earthen materials will be performed.

2. A numerical twin is developing from the French side. The student will bring its computation skills to implement the mass transfer model to capture the moisture buffering kinetics.

3. Validation of the model will be performed from experiments at the wall-scale to measure the heat and mass transfer fluxes using coupled remote sensing techniques. An inverse method will be employed to adjust the real external convective transfer coefficients to the simulations results.

4. The student will produce scientific articles in peer-reviewed journals

Working environment

The student will be inserted in the GPEM Laboratory constituted of a multi-disciplinary researchers teams working on circular economy and sustainable development. The team has a long experience of interdisciplinary and international collaborative works (Brazil, UK, Spain, Taiwan, China, and Czech).

References

Andrić, I., Le Corre O., Lacarrière B., Ferrão P., and Al-Ghamdi S. G. 2021. “Initial Approximation of the Implications for Architecture Due to Climate Change.” Advances in Building Energy Research 15 (3): 337–67. https://doi.org/10.1080/17512549.2018.1562980.

Bouchenna, C., Huchet F., Aramiou C., E. Hamard, Le Guen L., and Paul J. M. 2021. “Heat Exchanger Design Based on Earthen Materials.” Energy 227. https://doi.org/10.1016/j.energy.2021.120385.

Dodman, D., B. Hayward, M. Pelling, V. Castan Broto, W. Chow, E. Chu, R. Dawson, L. Khirfan, T. McPhearson, A. Prakash, Y. Zheng, and G. Ziervogel, 2022: Cities, Settlements and Key Infrastructure. In: Climate Change 2022: Impacts, Adaptation and Vulnerability. Contribution of Working Group II to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change [H.-O. Pörtner, D.C. Roberts, M. Tignor, E.S. Poloczanska, K. Mintenbeck, A. Alegría, M. Craig, S. Langsdorf, S. Löschke, V. Möller, A. Okem, B. Rama (eds.)]. Cambridge University Press, Cambridge, UK and New York,NY, USA, pp. 907–1040, doi:10.1017/9781009325844.008

Requirements

Research Field
Engineering
Education Level
Bachelor Degree or equivalent
Skills/Qualifications
  • At the time of the deadline, applicants must be in possession or finalizing their Master’s degree or equivalent/postgraduate degree.
  • At the time of recruitment, applicants must be in possession of their Master’s degree or equivalent/postgraduate degree which would formally entitle to embark on a doctorate.
Languages
FRENCH
Level
Good
Languages
ENGLISH
Level
Excellent

Additional Information

Benefits
  • High-quality doctoral training rewarded by a PhD degree, delivered by Université Gustave Eiffel
  • Access to cutting-edge infrastructures for research & innovation.
  • Appointment for a period of 36 months based on a salary of 2 700 € (gross salary per month).
  • Job contract under the French labour legislation in force, respecting health and safety, and social security: 35 hours per week contract, 25 days of annual leave per year.
  • International mobility will be mandatory
  • An international environment supported by the adherence to the European Charter & Code.
  • Access to dedicated CLEAR-Doc trainings with a strong interdisciplinary focus, together with a Career development Plan.
Eligibility criteria

Applicants must fulfil the following eligibility criteria:

  • At the time of the deadline, applicants must be in possession or finalizing their Master’s degree or equivalent/postgraduate degree.
  • At the time of recruitment, applicants must be in possession of their Master’s degree or equivalent/postgraduate degree which would formally entitle to embark on a doctorate.
  • At the time of the deadline, applicants must be in the first four years (full-time equivalent research experience) of their research career (career breaks excluded) and not yet been awarded a doctoral degree. Career breaks refer to periods of time where the candidate was not active in research, regardless of his/her employment status (sick leave, maternity leave etc). Short stays such as holidays and/or compulsory national service are not taken into account.
  • At the time of the deadline, applicants must fulfil the transnational mobility rule: incoming applicants must not have resided or carried out their main activity (work, studies, etc.) in France for more than 12 months in the 3 previous years.
  • One application per call per year is allowed.
  • Applicants must be available full-time to start the programme on schedule (November 1st 2023).
  • Application rules are enforced by the French doctoral system which specifies a standard duration of 3 years for a full-time PhD together with the MSCA standards and the OTM-R European rules as follows.
  • Citizens of any nationality may apply to the programme.
  • There is no age limit.
Selection process

Please refer to the Guide for Applicants available on the CLEAR-Doc website: https://clear-doc.univ-gustave-eiffel.fr/how-to-apply/useful-documents/

Additional comments
  • The First step before applying is contacting the PhD supervisor. You will not be able to apply without an acceptation letter from the PhD supervisor.
  • International mobility planned:

The applicant will have a 6 months international mobility at the University of J.E. Purkyne in Usti nad Labem (UJEP) - Czech Republic

  • Please contact the PhD supervisor for any additional detail on job offer.
  • There are no restrictions concerning the age, gender or nationality of the candidates. Applicants with career breaks or variations in the chronological sequence of their career, with mobility experience or with interdisciplinary background or private sector experience are welcome to apply.
  • Support service is available during every step of the application process by email: clear-doc@univ-eiffel.fr
Website for additional job details

Work Location(s)

Number of offers available
1
Company/Institute
Université Gustave Eiffel
Country
France
City
Bouguenais
Postal Code
44340
Street
Allée des Ponts et Chaussées
Geofield

Contact

City
Marne-La-Vallée
Website
Street
5, Boulevard Descartes
Postal Code
77454
E-Mail
florian.huchet@univ-eiffel.fr