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Stage-/Afstudeeropdracht - WO - Werktuigbouwkunde, Thermische Engineering, Technische Natuurkunde. Pumped two-phase loop for electronics cooling

ID de l'offre R0070451 Date de publication 22/07/2019 Lieu: Hengelo, Overijssel, Netherlands
Full time, Stage
In fast changing markets, customers worldwide rely on Thales. Thales is a business where brilliant people from all over the world come together to share ideas and inspire each other. In aerospace, transportation, defence, security and space, our achitects design innovative solutions that make our tomorrow's possible.

Stage-/Afstudeeropdracht - WO

Assignment: Internship, graduation assignment

Level:  MSc

Field of study: Mechanical Engineering, Thermal Engineering, Applied Physics

Title of the assignment: Pumped two-phase loop for electronics cooling

About us

With 80.000 talents working in 68 countries, we are one of the biggest high-tech employers in the field of safety and security. In the Netherlands, where 2000 employees are based, we are located in four cities: Huizen, Delft, Eindhoven and Hengelo (HQ). Together with an extensive ecosystem of knowledge partners, customers and suppliers, we work on radars for naval vessels, cyber security solutions, transportation systems, communication equipment for land forces, cryogenic cooling solutions, research & development for radar tech (in collaboration with TU Delft).


One of the main developments of the Hengelo site are radar systems, including antennas, transmitters, signal generators and receivers. Besides product development, innovative technology studies are carried out in this field. Within the Mechanical & Electrical Engineering department you will work in a multidisciplinary environment. Radar infrastructure is developed, and mechanical and electrical integration is performed. The department is therefore in close contact with other design departments, as well as Final Assembly, and Test and Integration.

Thermal management is an important aspect in the design of a radar system. For next generation products, high power transmitters are to be used. Cooling capacity is currently the limiting factor in developing such systems. New technology is required to go to higher output powers; for instance, technologies that rely on phase-change behavior.

About the assignment

The goal of the assignment is to investigate and demonstrate novel technologies and designs that can push the boundaries of electronics thermal management. The application case is incorporating a two-phase cooling approach, in particular developing a mechanically pumped loop. In such loop, the evaporator and condenser designs need to be matched with the specifications of the pump. The working fluid is pumped in near saturation state and heat rejected from e.g. electronic components is directly stored by the latent heat of the fluid.

Pumped two-phase cooling enables high heat flux cooling and is able to transfer heat over a relatively long distance. Evaporators can be placed in parallel enabling the cooling of multiple components using one cooling loop. Moreover, the loop can operate in any orientation and is robust to acceleration. Finally, as the liquid volumetric flow rate is low, the tubing design is small and lightweight compared to a single-phase cooling loop. However careful consideration for the pump selection and accumulator is required.

Foreseen activities include:

-   Literature study on (design parameters of) two-phase pumped loop systems

-   Construct a numerical model and analyse design parameters

-   Build a prototype test set-up

-   Perform experimental tests and validate your model(s)

-   Report the activities, numerical model and design parameters in a detailed report.

The final assignment can be tailored towards your specific background/ambitions and university requirements.

Affinity

Mechanical (Thermal)Engineering, Electrical Engineering, Physics, Material Sciences

Thales offers…

  • An interesting internship or graduation assignment in an international high tech environment
  • An open and flexible working environment;
  • An excellent internship allowance
  • Its own student association where you can participate in educational and fun activities.

Interested?

Would you like to apply directly?  Then click on the button ‘Apply now’ to show your interest.
Please keep in mind that we can only consider students who are enrolled at a school or educational institution during the whole internship period for our internships and graduation assignments.

At Thales we provide CAREERS and not only jobs. With Thales employing 80,000 employees in 68 countries our mobility policy enables thousands of employees each year to develop their careers at home and abroad, in their existing areas of expertise or by branching out into new fields. Together we believe that embracing flexibility is a smarter way of working. Great journeys start here, apply now!


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