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Mechanical Engineering● Open⏰ 8 days leftPreview

PhD Candidate in Thermal Engineering: Natural Refrigerants for Ultra-Low Temperature Cooling

Join a 4-year PhD project at Universitat Jaume I to develop high-efficiency ultra-low temperature cooling systems using natural refrigerants.

Best for:Best for engineering graduates with a strong background in thermodynamics, refrigeration science, and experimental prototype construction.

Universitat Jaume I · Castellón de la Plana, Spain · R1 · First-stage researcher
More professors at Universitat Jaume I
Ultra-Low Temperature RefrigerationNatural RefrigerantsThermal Systems ModelingPrototype DevelopmentCryogenics
Deadline
Oct 23, 2026
8 days
Funding
Salaried
€19.6k–€25.1k/yr
Start date
January 2027
Full-time
Location
Castellón de la Plana
Spain

Overview

Universitat Jaume I invites applications for a 4-year fully-funded PhD candidate position within the Mechanical Engineering and Construction Department. The successful applicant will join the Thermal Engineering Research Group to work on the NAR-ULT project, focusing on experimental development and advanced modeling of ultra-low temperature cooling systems reaching -150°C using natural refrigerants. Responsibilities include building prototypes, designing test rigs, monitoring system performance, and disseminating findings at scientific conferences. Candidates are expected to hold a Master's degree in a relevant engineering discipline and possess a strong background in refrigeration science.

PhDThermal EngineeringRefrigerationNatural RefrigerantsCryogenicsHeat PumpsExperimental Testing

What you'll do

  • Conduct advanced modeling and simulation of ultra-low temperature refrigeration architectures.
  • Design experimental test rigs and oversee the physical construction of cooling prototypes.
  • Monitor, test, and evaluate the energetic and thermal performance of developed systems.
  • Contribute to experimental validation targets aiming to achieve -150°C in refrigerated spaces.
  • Collaborate within an international and multidisciplinary team specialized in heat pumps and refrigeration.
  • Prepare research findings for publication and participate in international scientific conferences.

Requirements

Degree required: Master Degree or equivalent in Engineering (mechanical, thermodynamics, chemical, industrial or similar)

Degree offered: PhD

Language: English; good level of written and spoken proficiency

Instruction: English and Spanish

Required skills
  • Solid knowledge of refrigeration science and thermodynamics
  • Practical skills in refrigeration facility construction and experimental testing
  • Ability to conduct advanced modeling of refrigeration architectures
  • Availability to travel for project needs and conferences
Nice to have
Prior experience with natural refrigerants, commercial refrigeration, or cryogenicsBackground in multidisciplinary or international research environments
Eligibility
  • Must hold a recognized Master's degree prior to appointment
  • Must commit to obtaining the PhD grade within three to four years

Funding & terms

Type
Salaried
Amount
€19.6k–€25.1k/yr
Duration
4 years
Programme
Proyectos de Generación de Conocimiento
The Ministry of Science, Innovation and Universities of Spain

How to apply

Deadline: 2026-10-23 (UTC)

Interested candidates should submit their application materials directly via email to Prof. Rodrigo Llopis referencing the PhD position in the Thermal Engineering Group. Ensure all requested academic and professional qualifications are clearly presented in your submission.

Documents required
  • CV
  • Master Degree certificate and transcripts
✉Apply by email

Contact

Rodrigo Llopis· Principal Investigator

rllopis@uji.es

http://www.uji.es

RL
Prof.
Rodrigo Llopis
Mechanical Engineering and Construction Department
Lab
Thermal Engineering Research Group
Universitat Jaume I
Proyectos de Generación de ConocimientoSpain
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