Thesis work 30 hp - Efficiency of spray cooling on gears

Introduction:
Thesis work is an excellent way to get closer to Scania/Traton and build relationships for the future. Many of today's employees began their Scania/Traton career with their degree project. 

Background:

Driving the shift towards sustainability dictates developing future products that are efficient to build, operate and have minimum impact on the environment.
The low losses in electric machines compared to internal combustion engines further puts into focus a need for increased efficiency of the powertrain as a whole and its subcomponents. A well designed oil system should maximize utilization of available resources and have optimized consumers to minimize waste. One way of increasing efficiency is to replace splash lubrication of the gearbox in favour of spraying the gears in order to reducing the drag losses. Several parameters of the spray will have an effect on the cooling performance. To better understands this effect this thesis is work is initiated. Students are expected to be present minimally 80% onsite at Scania Södertälje.

Target:

The goal of the thesis work is to understand and develop a method for evaluating efficiency of spray cooling gears both experimentally and mathematically.

Assignment:

Thesis work comprises of two main tasks:

Testing:

• Building test rig
• Performing test
• Evaluate results and test method
• Correlation study

Simulation:

• Develop simulation method to model spray cooling and calculate the impact on heat transfer with high accuracy
• Simulation model that can estimate gear temperature accurately.

Education:

M.Sc. Student in: Engineering Physics, Mechanical Engineering, or equivalent

Number of students: 2

Start of work: Spring 2026

Estimated duration: 20 weeks, full time 40 hours per week

Language of work: Good knowledge in English is required

Meritorious: In order to be suitable for this assignment. You should have interest and experience of computational and experimental work. Be curious to the unknown. Good cooperation skills and enjoy to discuss scientific questions in order to find the innovative and clever solutions..

Contacts:

Group manager, Per Gustafsson, per_b.gustafsson@scania.com
Simulation, Usman Afridi, usman.afridi@scania.com
Testing, Jakob Fischer, jakob.fischer@scania.com

Application:

Your application must include a CV, personal letter and transcript of grades 

A background check might be conducted for this position. We are conducting interviews continuously and may close the recruitment earlier than the date specified.