Bachelor/Master-Thesis: RADIATOR AREA OPTIMIZATION STUDY

One of the thermal control methods used to manage the heating and cooling of satellites in space is radiators. Radiators are surfaces generally coated with materials with high emissivity. For example, materials such as white paint, thanks to their high reflectivity and low absorbency properties, reduce heating by reflecting solar heat, while at the same time providing cooling by radiating the internal heat into space through radiation. In this way, temperatures of electronic equipment are kept within safe limits and satellite missions can be completed successfully.

In this study, an electronic equipment connected to an aluminum 6061 plate with 1 x 1 m dimensions and 0.04 m thickness and 0.035 surface emissivity coating. Assuming that the surrounding of the system has adiabatic boundary condition, the plate is thermally conditioned in an environment maintained at 200 K.

[New Space Economy]

The student is expected to accomplish the following work packages:

• Radiator surface material selection
•  Selection of thermal interface material between the equipment and the plate
•  Analytical calculation of the required radiator area in steady-state
•  Selection of the radiator surface coating.
• Determination of time-dependent temperatures of equipment temperatures for cases where the equipment produces a certain heat flow (60 W) with heat rejection over a duration of 10 min
• Evaluation of heat rejection over 50 min at 40 W waste heat

This task will be conducted in collaboration with a company working in spacecraft technologies. Therefore, the potential student is asked to

• have good grades in Heat and Mass Transfer, Numerical Methods (at least 3.25 GPA)
• have basics in CFD and CAD
• be interested and motivated in working on thermal analysis issues
• write and present a conference paper

Start:     immediately

Contact:

Assoc. Prof. Dr. Mete BUDAKLI 16.12.2024 12:25:34