Porous Media Reactor Temperature Data

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Copyright: Copyright 2018, Philippe Andre Gentillon Molina
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Abstract
Temperature recordings collected from the porous media reactor using S-type and K-type thermocouples and the SignalExpress Software
Persistent link to this record
http://hdl.handle.net/1959.4/resource/collection/resdatac_592/1
DOI
https://doi.org/10.26190/unsworks/1416
Link to External Data Repository
Electronic Location
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Research Data Creator(s)
Corporate/Industry Contributor(s)
Publication Year
2018
Resource Type
Dataset
Keyword(s)
Porous Media Combustion
Thermophotovoltaics
UNSW Faculty
Files
download Reactors Data Summary.xlsx 648.66 KB Microsoft Excel XML
Related dataset(s)
Porous media combustion-based thermophotovoltaic (PMC-TPV) reactor experiment
Dataset
Temperature, PV electric energy and spectrum measurements: The high temperatures of combustion systems make them suitable for coupling with thermophotovoltaic systems. In practice, it is quite challenging to reduce heat losses and the spectral mismatch between the emission of the combustion source and the spectral response of photovoltaic (PV) cells. In an effort to pull these disparate energy-focussed research fields together, this paper explores the use of a low-cost erbia (Er2O3) coating on a novel porous media combustion-based thermophotovoltaic (PMC-TPV) reactor for continuous combined heat and power generation. In this work, three different configurations were analysed, including a non-coated porous foam, a coated porous foam, and a coated quartz container. As such, this study provides the first in-depth analysis and characterisation of all salient components of a PMC-TPV system. It includes a detailed characterisation of a 24-cell gallium antimonide (GaSb) array, which was attached to a heat sink and used to harvest the radiant emission from a hot (> 1200°C), yttria-stabilised zirconia/alumina composite (YZA) ceramic foam. Since the ceramic foam does not have an ideal emissivity curve for these cells, the ability of the erbia coating to control the spectral emission was measured. The results show that by applying the erbia coating to the outer surface of the YZA foam (e.g. using a simple 2-step process of dip coating followed by curing/calcination), it is possible to increase performance, achieving a maximum in-band emission fraction of 25.4% at a firing rate of 1300 kW/m2 (i.e. around 10% of increase than that for non-coated configuration), which provides a temperature of 1285°C. Additionally, a maximum power output of 1W was achieved by using erbia coating on YZA foam. For the third configuration, the use of the erbia coating on the quartz tube (instead of the YZA foam) leads to an increase in the maximum core temperature of the reactor up to 1443°C; however, this also leads to a decrease in electrical performance due to a lower in-band fraction. These findings show that applying an erbia coating on an industrial radiant emitter could enable a combined heat and power processes to gain around 30% increase of electrical output. Finally, since the PV fill factor was lower than expected, and electroluminescence measurements indicated cell damage, these findings also reveal the importance of continuously monitoring PV parameters in PMC-TPV systems
Related publication(s)
Related grant(s)
Stable flame limits for optimal radiant performance of porous media reactors for thermophotovoltaic applications using packed beds of alumina - School research fund
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