The development of a dust monitoring system for a geothermal power plant at Innamincka of South Australia

Pluschke, Armin Ernst (2011). The development of a dust monitoring system for a geothermal power plant at Innamincka of South Australia B.Sc Thesis, School of Engineering, The University of Queensland.

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Author Pluschke, Armin Ernst
Thesis Title The development of a dust monitoring system for a geothermal power plant at Innamincka of South Australia
School, Centre or Institute School of Engineering
Institution The University of Queensland
Publication date 2011
Thesis type B.Sc Thesis
Supervisor Hal Gurgenci
Zhiqiang Guan.
Total pages 183
Language eng
Subjects 091405 Mining Engineering
0913 Mechanical Engineering
Formatted abstract
This thesis presents the development of a dust monitoring system for the Geodynamics 1MW demonstration power plant at Innamincka, being the first stage in addressing the predicted damaging effects of high dust concentrations on air-cooled cooling tower heat exchangers due to fouling. The implementation of air-cooled cooling towers for geothermal development in the heart of the Cooper Basin is appealing relative to its water-cooled counterpart due to a lack of water. However, air-cooled cooling towers and in particular, natural-draft cooling towers, are susceptible to surface fouling and require periodic maintenance to combat the consequential loss in heat exchange efficiency and its unfavourable effect on power plant performance. Being the precursor to future particulate monitoring at Innamincka, this thesis reviews prior studies on dust from its sources through to its entrainment by wind systems and finally its deposition causing fouling, paying particular attention to studies performed in Australia. Numerous studies reveal high dust activity constituting primarily of a mineral dust rich in iron originating from the Lake Eyre Basin in close proximity to geothermal development, rendering Australian soils as significant contributors to global dust budgets. Equipped with an insight into prior aeolian particulate research, modern aeolian particulate mass concentration monitoring technologies and their limitations are described and discussed with the aim of ultimately selecting equipment suited for continuous particulate mass concentration monitoring at Innamincka. From the option of equipment implementing either, conventional light opacity, dynamic light opacity, electrodynamic, triboelectric, beta ray attenuation, tapered element oscillating microbalance or light-scatter technology, MetOne’s E-Sampler, a robust continuous lightscatter particulate monitor with unequalled filter method accuracy has been chosen and installed on-site. This thesis documents its suitability, its specific siting on-site to Australian Standards suited to future studies, its setup, followed by its gravimetric calibration procedure. Further to digital continuous particulate monitoring, the possible use of vertical and horizontal flux dust collectors in this dust monitoring system, to quantify dust deposited and dust in active horizontal transport respectively, is discussed. Sampling procedures and suggested analysis from results are outlined for all monitoring equipment.
Keyword geodynamics
Heat Exchanger

Document type: Thesis
Collection: UQ Theses (non-RHD) - UQ staff and students only
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Created: Fri, 12 Sep 2014, 10:38:17 EST by Ahmed Taha Siddiqui on behalf of Scholarly Communication and Digitisation Service