30 credits – Development of a test protocol to investigate the filtration efficiency of soft particles in biofuels in a full scale filtration rig. Job at Scania in Södertälje

Job Description

Thesis project at Scania is an excellent way of making contacts for your future working life. Many of our current employees started their career with a thesis project.


Together with KTH, Scania has started a four-year project with the aim to study filtration of biofuels. Biofuels are especially problematic due to the generation of soft particles which can pass though the fuel filter and build up deposits in the injector system. In addition, soft particles that do not pass the fuel filter can block it.

Therefore, it is of high interest to study the mechanisms of how soft particles are formed and also the interaction with the fuel filter is of high interest in order to avoid the deposits problems in the fuel system.

Filtration of hard particles (sand and water) is well known and used. On the other hand, filtration of soft particles is not well known yet, so we are looking for a person that likes challenges and has high interest to work in new areas.


Answer the questions:
Which type of experiments are needed to investigate the soft particles in a full scale filtration test rig? How does the soft particles interact with real fuel filters? How should we prepare a fuel test with soft particles to use in the filtration rig? Which type of instrumental techniques should be used to analyse the soft particles collected in the filters?


Literature study on heavy-duty diesel low pressure systems in general and on the fuel filter system in particular. Literature study on fuel filtration and soft particles in biofuels.

Design and perform experiments in a full scale filtration rig with soft particles.

Investigate the filtration efficiency of different fuel filters and how they interacts with the soft particles.

Written report and oral presentation.


Sc. Student in: Chemistry, Chemical Engineering, Material Engineering, or Technical Physics.

You should be dynamic, interested in experimental work and have the ability to have your own drive in the project.

Number of students: 1

Time: 20 weeks (VT21), full time 40 hours per week

Start date: Jan 2021

Credits: 30hp

Contact persons and supervisors

Mayte Pach, Dev. Engineer, Materials Technology, Scania CV AB +46 8 553 862 49, Mayte.Pach@Scania.com

Henrik Hittig, Expert engineer, Materials Technology, Scania CV AB +46 8 553 805 27, Henrik.Hittig@Scania.com

Group Manager: Martina Levin, Materials Technology, Scania CV AB +46 8 553 82 513, Martina.Levin@Scania.com


Please enclose personal letter, CV and a list of grades from the university.

Publication date from 2020-10-15 to 2020-12-15

About Company

Company: Scania

Company Location:  Södertälje

About Scania