NDLI: Operational Performance of a 5 kW Solar Chemical Reactor for the Co-Production of Zinc and Syngas

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Kra¨upl, Stefan Steinfeld, Aldo
Copyright Year	2002
Abstract	We report on the improved operational performance and energy conversion efficiency of a 5 kW solar chemical reactor for the combined ZnO-reduction and CH4-reforming “SynMet” process. The reactor features a pulsed vortex flow of CH4 laden with ZnO particles, which is confined to a cavity-receiver and directly exposed to solar power fluxes exceeding 2000 kW/m2. Reactants were continuously fed at ambient temperature, heated by direct irradiation to above 1350 K, and converted to Zn(g) and syngas during mean residence times of 10 seconds. Typical chemical conversion attained was 100% to Zn and up to 96% to syngas. The thermal efficiency was in the 15–22% range; the exergy efficiency reached up to 7.7% and may be increased by recovering the sensible and latent heat of the products. The Synmet process avoids emissions of greenhouse-gases and other pollutant derived from the traditional fossil-fuel-based production of zinc and syngas, and further converts solar energy into storable and transportable chemical fuels.
Sponsorship	Solar Energy Division
Starting Page	257
Ending Page	260
Page Count	4
File Format	PDF
ISBN	0791816893
DOI	10.1115/SED2002-1060
Volume Number	Solar Energy
Conference Proceedings	ASME Solar 2002: International Solar Energy Conference
Language	English
Publisher Date	2002-06-15
Publisher Place	Reno, Nevada, USA
Access Restriction	Subscribed
Subject Keyword	Methane Latent heat Temperature Irradiation (radiation exposure) Solar power Solar chemistry Fuels Syngas Emissions Cavities Gases Pollution Particulate matter Energy conversion Solar energy Flux (metallurgy) Exergy Thermal efficiency Vortex flow
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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