Four experimental master thesis students for projects on heat transfer at the R&D Fluid Dynamics Lab

O roli

Lokalita
Sweden
Oestergoetlands laen
Finspang
Společnost
Siemens Energy AB
Organizace
Gas Services
Obchodní jednotka
Distributed
Plný/Částečný úvazek
Na plný úvazek
Úroveň praxe
Student

A Snapshot of Your Day

We are offering four positions that will experimentally investigate the effect of additively manufactured (AM) induced roughness on the heat transfer, pressure loss and the flow field. In the fluid dynamics lab, four methods have been developed and verified that are suitable for these studies -the quasi Steady State Heat Transfer method (qSSHT), the quasi Steady State Heat Transfer Liquid method (qSSHTh2o), the Surface Roughness Heat Transfer method (SRHT) and the Particle Image Velocimetry method (PIV).

The qSSHT and qSSHTh2o methods use similar experimental approaches to determine the thermal performance of additively manufactured test objects with varying internal geometries. The test object will be insulated and heated in a controlled manner. Subsequently, the internal geometry will be exposed to air/water flow at a constant temperature and mass flow rate. By measuring temperatures and pressures before and after the test object, as well as the mass flow and the test object's surface temperature, it is possible to evaluate the Darcy friction factor and the Nusselt number as functions of the Reynolds number and Prandtl number, using the measurement data in an in-house conjugate FEM solver.

The SRHT method examines local heat transfer on upscaled AM surfaces using data from a scanning electron microscope. At the beginning of the test, the test coupons are at a known uniform temperature and are subjected to a sudden step change in flow temperature. The time-resolved surface temperature will be measured using an IR camera. By assuming local constant values of the heat transfer coefficient over time, the heat equation will be solved using an in-house conjugate FEM solver.

The PIV rig uses the same upscaled AM surface test coupons as the SRHT method. A powerful pulsed laser and a high-speed camera are applied to observe the roughness's effect on the boundary layer velocity profile and connect this to the friction losses experienced in AM geometries

The projects are performed at our labs, and they are 7 months long with start in October to have enough time for you to introduce developments in the test methods and collect results to validate them.


How You’ll Make an Impact

The master thesis project is well structured, and you will have an experienced and competent supervisor. The project plan usually follows the path where you will be responsible for:

  • Literature review
  • Test rig preparation for testing
  • Perform testing
  • Analysis of test results
  • Apply changes on the test rig, test procedure or analysis to improve the results
  • Final report/presentation writing


During the thesis you will acquire improved skills in dimensional analysis, data acquisition, heat transfer calculation and mass flow/pressure/temperature measurements. Basic knowledge in additive manufacturing will be obtained. An assigned experienced supervisor will support you during the whole period. Our Diploma Thesis projects aim to produce publishable work; previous projects have been featured in respected journals.


What You Bring

Your profile should show courses on:

  • gas fluid dynamics
  • heat transfer
  • dimensional similarity
  • numerical methods
  • Knowledge in Matlab/Python.
  • Fluency in English language are required both in speech and writing.
  • It is appreciated if you have had laboratory testing experience


About the Team

The Measurement and Component Testing team is composed of experienced and knowledgeable test technology engineers and measurement technology engineers. We are around 20 team members, and we have four labs where we perform prototype design validation. We are part of the R&D department at Siemens Energy AB in Finspång and therefore our test measurements and methods are always evolving to meet new design validation demands and new technology developments. We are responsible for validation of both full engine prototypes as component prototyping.

Our Gas Services division offers Low-emission power generation through service and decarbonization. Zero or low emission power generation and all gas turbines under one roof, steam turbines and generators. Decarbonization opportunities through service offerings, modernization, and digitalization of the fleet.

We can offer you employment benefits such as: reduction of working hours, advance vacation, health care allowance and an eventual possibility to a flexible working place.


Who is Siemens Energy?

At Siemens Energy, we are more than just an energy technology company. We meet the growing energy demand across 90+ countries while ensuring our climate is protected. With more than 99,000 dedicated employees, we not only generate electricity for over 16% of the global community, but we’re also using our technology to help protect people and the environment.

Our global team is committed to making sustainable, reliable, and affordable energy a reality by pushing the boundaries of what is possible. We uphold a 150-year legacy of innovation that encourages our search for people who will support our focus on decarbonization, new technologies, and energy transformation.

Find out how you can make a difference at Siemens Energy: https://www.siemens-energy.com/employeevideo


Our Commitment to Diversity

Lucky for us, we are not all the same. Through diversity, we generate power. We run on inclusion and our combined creative energy is fueled by over 130 nationalities. Siemens Energy celebrates character – no matter what ethnic background, gender, age, religion, identity, or disability. We energize society, all of society, and we do not discriminate based on our differences.


Application

Don’t hesitate! – apply via https://jobs.siemens-energy.com/en_US/jobs , id nr 274593 no later than 2025-06-08!

Ongoing selection is applied, the role might be filled before last application date.


For questions about the role, please contact the recruiting manager Alessio Bonaldo on alessio.bonaldo@siemens-energy.com

For questions about the recruitment process please contact the responsible recruiter Ermina Imamovic on ermina.imamovic.ext@siemens-energy.com


We refrain from all contact with staffing and recruitment companies, or advertising brokers.


Location: Finspång


Trade Union Representatives:

Anders Häll, Unionen, +46122-887514

Simon Von Eckardstein, Sveriges Ingenjörer, +46122-842 24

Jan Lundgren, Ledarna, +46122-812 33

Mikael Malmgren, IF Metall, +4676-6958685



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