期刊
JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME
卷 136, 期 1, 页码 -出版社
ASME
DOI: 10.1115/1.4025511
关键词
solar reactor; zinc oxide; thermochemical; radiative heat transfer; dynamic modeling; quartz glass; optical; properties; IR thermography
资金
- Swiss Federal Office of Energy
- Swiss Competence Center
- European Research Council [320541]
- European Research Council (ERC) [320541] Funding Source: European Research Council (ERC)
A dynamic numerical model of a solar cavity-type reactor for the thermal dissociation of ZnO is formulated based on a detailed radiative heat transfer analysis combining the Monte Carlo ray-tracing technique and the radiosity enclosure theory. The quartz window is treated as a semitransparent glass layer with spectrally and directionally dependent optical properties. Model validation is accomplished by comparison with experimental results obtained with a 10-kW solar reactor prototype in terms of cavity temperatures, reaction extents, and quartz window temperature distribution measured by IR thermography. The solar-to-fuel energy conversion efficiencies obtained experimentally are reported, and the various energy flows are quantified.
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