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3D Printed electrically controlled pneumatic switch

Jaladi, H.S.V.C. van (2021) 3D Printed electrically controlled pneumatic switch.

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Abstract:Pneumatic switches work essentially like valves that can control the flow of air. The context for this assignment is to use electrically controlled thermal actuation to direct the flow of air for switching pressure which can be used to guide the insertion tube on an endoscope. To accomplish this, a flexible membrane that expands with the thermal expansion of the liquid within the actuator and contracts while cooling is used to switch the flow. To understand the process of heat flow within the actuator, the heat flow in a 1-D infinitely long plate and a sphere while cooling and also a sphere with uniform heat source are studied. For this study both an analytical model as well as an FEM model are used. Finally a 3D printed design is made to study the functioning of the heater and the temperature distribution inside the actuator in practice. Using thermocouple measurement and IR thermography, spatiotemporal temperature distributions of the 3D printed actuator are obtained and compared with the results of the models. Hemanth Jaladi
Item Type:Essay (Master)
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Subject:53 electrotechnology
Programme:Electrical Engineering MSc (60353)
Link to this item:https://purl.utwente.nl/essays/104176
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