Combined permeable pavement and ground source heat pump systems
dc.contributor.advisor
Scholz, Miklas
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dc.contributor.advisor
Coupe, Stephen
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dc.contributor.advisor
French, Chris
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dc.contributor.advisor
Crapper, Martin
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dc.contributor.author
Grabowiecki, Piotr
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dc.date.accessioned
2011-01-19T10:22:35Z
dc.date.available
2011-01-19T10:22:35Z
dc.date.issued
2010
dc.description.abstract
The PhD thesis focuses on the performance assessment of permeable pavement systems incorporating ground source heat pumps (GSHP). The relatively high variability of temperature in these systems allows for the survival of pathogenic organisms within the sub‐base. Salmonella sp, Escherichia coli, Enterococci and total heterotrophic bacteria were analysed in order to assess potential risk to health. Supplementary carbon dioxide monitoring indicated relatively high microbial activity on the geotextile and within the lower parts of the sub‐base. Anaerobic processes were concentrated in the space around the geotextile, where carbon dioxide concentrations reached up to 2000 ppm. The overall water treatment potential was high, with up to 99% biochemical oxygen demand removal. Variable removal efficiencies have been calculated for nutrients such as ortho‐phosphate‐phosphorus, ammonia and nitrates/nitrites. Calculated Coefficients of Performance and Energy Efficiency Rates provided evidence on correctness of GSHP design. Collected data was analysed with non‐parametrical statistics and a self‐organizing map model was used to assess relationships between variables. Findings present correlations considered as low and insignificant between temperature fluctuations and pathogen numbers. Highly significant correlations (p<0.01) were calculated for influent‐effluent relationships. Air and water temperatures and water quality data variability within the systems provided evidence for the high level of biological processes leading to a low risk of pathogen transition to human.
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dc.identifier.uri
http://hdl.handle.net/1842/4649
dc.language.iso
en
dc.publisher
The University of Edinburgh
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dc.relation.hasversion
Scholz, M. and Grabowiecki P., (2007). Review of permeable pavement systems. Building and Environment. 42(11): 3830‐3836.
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dc.relation.hasversion
Scholz M. and Grabowiecki P., (2008). Combined Permeable Pavement and Ground Source Heating Pump Systems to Treat Urban Runoff. Journal of Chemical Technology and Biotechnology. 84(3): 405‐413
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dc.relation.hasversion
Tota‐Maharaj K., Grabowiecki P. and Scholz M., (2009). Energy and Temperature Performance Analysis of Geothermal (Ground Source) Heat Pumps Integrated with Permeable Pavement Systems for Urban Runoff Reuse. International Journal for Sustainable Engineering. 2(3): 201‐213. DOI 10.1080/19397030903151296
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dc.relation.hasversion
Grabowiecki, P. and Scholz, M., (2006). Pavements: a new source of water and energy? Proceedings of the Institution of Civil Engineers‐Civil Engineering. 159(2): 54‐54.
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dc.subject
ground source heat pumps
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dc.subject
permeable pavement systems
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dc.subject
temperature fluctuations
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dc.subject
influent‐effluent relationships
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dc.title
Combined permeable pavement and ground source heat pump systems
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dc.type
Thesis or Dissertation
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dc.type.qualificationlevel
Doctoral
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dc.type.qualificationname
PhD Doctor of Philosophy
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