Sorry, you need to enable JavaScript to visit this website.

Thermal characterization of a cavity receiver for hydrogen production by thermochemical cycles operating at moderate temperatures

TitleThermal characterization of a cavity receiver for hydrogen production by thermochemical cycles operating at moderate temperatures
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2013
AuthorsLanchi, M., Varsano F., Brunetti B., Murmura M.A., Annesini M.C., Turchetti L., and Grena R.
JournalSolar Energy
Volume92
Pagination256-268
ISSN0038092X
KeywordsCavity receiver, Cavity receiver for hydrogen productions, experimental study, Ferrite, Finite element method, Finite element models, Hydrogen, Hydrogen production, irradiance, Manganese, Manganese ferrites, Moderate temperature, renewable resource, Solar furnaces, solar power, solar radiation, Thermal characterization, Thermochemical cycles, Thermochemistry, Thermofluidodynamic
Abstract

The manganese-ferrite thermochemical cycle developed by ENEA for hydrogen production, whose maximum temperature level lays in the range 750-800. °C, has a high potential for coupling with the solar source using conventional structural materials. As a first step for the on sun feasibility validation of the cycle, an experimental survey of the thermal performance of a receiver-reactor designed by ENEA, to be powered by a solar furnace (1. kW), has been carried out in the absence of a reaction. The temperature distribution over the reactor chamber as a function of solar irradiation has been measured and the thermal inertia of the system has been evaluated. The experimental results confirm that the reactor temperature and inertia are compatible with the manganese-ferrite cycle and other cycles operating at moderate temperatures. In order to set the basis for the evaluation of this and other similar prototypes, a finite element model (FEM) has been developed to describe the thermofluidodynamic behavior of the reactor. Good agreement between calculated and experimental data has been obtained; therefore this model will be improved and extended to describe both the hydrogen and oxygen releasing reactions of the manganese-ferrite cycle, with the aim of optimizing the reactor design. © 2013 Elsevier Ltd.

Notes

cited By 5

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84876734748&doi=10.1016%2fj.solener.2013.03.008&partnerID=40&md5=95ab27bfbb1bba129e34f24211bb26ba
DOI10.1016/j.solener.2013.03.008
Citation KeyLanchi2013256