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Disgrifiad prosiect

Flue gas analysis probe

(supervisor: Dave Langstaff)

Nature of project: experimental, experimental

Available to students on full-time physics degree schemes or joint students.

Project description and methodology

This project is to construct, build, program and test an analyser for flue gasses coming from a charcoal kiln. The analyser will be based around an Arduino microcontroller in conjunction with an appropriate display and sensors.

The device should use standard off-the-shelf low cost sensors to determine the temperature, humidity and concentration of volatile compounds at the tip of a probe. The results should be displayed on the built-in display in a useful format.

The student will need to design the system, specifying appropriate gas sensor devices as well as the display. The project will involve designing and 3D printing a suitable housing for the control, display and probe.

In case the student cannot gain access to the laboratory for design and build of the project, they can take away a kit of parts to enable construction of the project.

A successful project will develop beyond the above in one/some of the following directions:
A more advanced probe could be added to the system allowing display of specific volatile compounds and flue gasses such as carbon monoxide.

Another extension to the project would be to give the possibility of running the sensor system in datalogging mode whereby results from the sensor outputs are logged to a text file on an SDcard along with timestamp information.

When considering where to take your project, please bear in mind the time available. It is preferable to do fewer things well than to try many and not get conclusive results on any of them. However, sometimes it is useful to have a couple of strands of investigation in parallel to work on in case delays occur.

This project is only available as a Y3 project.

Please speak to Dave Langstaff (dpl) if you consider doing this project.

Initial literature for students:

  1. Elemental Composition and Flue Gas Emissions of Different Components from Five Semi-Arid Woody Species in Pyrolysed and Non-Pyrolysed Material, Ngangyo Heya, Maginot; Foroughbakhch Pournavab, Rahim; Carrillo Parra, Artemio; et al. SUSTAINABILITY Volume: 11 Issue: 5 Article Number: 1245 Published: MAR 1 2019
  2. In situ high-temperature gas sensors: continuous monitoring of the combustion quality of different wood combustion systems and optimization of combustion process. H.Kohler et al. JOURNAL OF SENSORS AND SENSOR SYSTEMS, 7 Issue: 1 Pages: 161-167
  3. BME280 Datasheet, Bosch Industries

Novelty, degree of difficulty and amount of assistance required

The project will require assistance from the electronics workshop. Although the Arduino micro-controller and display are ready assembled, the student will need to design a suitable case and probe housing. There will be a small amount of soldering involved during the construction of the instrument.

Project milestones and deliverables (including timescale)

milestoneto be completed by
Selection of sensor components for systemend of October
Outline design completeChristmas
3D printed case and other components completed.end of February
System testedmid-March

Students taking this project will have to submit a full risk assessment form