University of Twente Student Theses


Mechanical investigation of thermoelectric cooling

Basavraj, Akash (2020) Mechanical investigation of thermoelectric cooling.

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Abstract:Bosch Security Systems B.V is located in Eindhoven, Netherlands. The product portfolio of Bosch Security Systems consists of systems for video surveillance, intrusion detection and fire detection, evacuation systems and systems for access control and management. The assignment offered at Bosch was the ‘Mechanical Investigation of Thermoelectric cooling’. The aim of this assignment was to investigate Thermoelectric Cooling for cooling applications in surveillance cameras. The image sensors are prone to thermal noise generation at temperatures of more than 60oC. To avoid this, an efficient cooling mechanism is required. Refrigeration cooling is an approach to cater for the cooling requirements, although this type of cooling carries the risk of fluid leakage which could potentially lead to failure of the surveillance system. Thermoelectric Cooling devices do not employ fluids or any moving mechanical parts. Temperature control is also a possibility with Thermoelectric devices. An image sensor can be held at a defined temperature for its efficient operation with reduced noise, the output of which is a better image quality than the same image sensor with temperature fluctuations. For solid state operation, a thermoelectric cooler to dissipate heat from a device at a defined temperature. A Thermoelectric device can be selected according to the power budget available, since different thermoelectric devices offer different cooling capacities. A thermoelectric device was chosen for the given cooling requirement and a model was designed for analysis and experimentation in the final stage of the assignment.
Item Type:Internship Report (Master)
Faculty:ET: Engineering Technology
Programme:Mechanical Engineering MSc (60439)
Keywords:thermo-electric cooling, surveillance camera, thermal noise generation
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