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3D printed calorimetric flow sensor

Umrani, A.J. (2020) 3D printed calorimetric flow sensor.

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Abstract:This study introduces a systematic approach towards modelling, designing and characterisation of a 3D printed flow sensor using thermal readout technique. Based on the principle of thermal flow sensing, a calorimetric flow sensor was fabricated using Fused deposition modelling. A model is presented based on the previous work done by Joël Van Tiem which predicts the heat distribution of a fluid in a channel with time independent and time dependent flow. The two sensors measure the temperature profile surrounding a heater and the resulting temperature change can be translated to flow in the channel. The thermoresistive behaviour of the sensor material PI-eTPU 85 was also studied to determine the coefficient of thermal expansion of the material. The sensor material was placed in a regulated temperature chamber and subjected to heating and cooling cycles. Resistance was measured (per degree Celsius rise in temperature) using a four point measurement technique . Two designs of the sensors are fabricated using fused deposition modelling 3D printer. An experimental setup has been designed to compare the model results with the experimental results.
Item Type:Essay (Master)
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Subject:50 technical science in general
Programme:Electrical Engineering MSc (60353)
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