Test operation of a 100 kW pilot plant for solar hydrogen production from water on a solar tower

被引：125

作者：

Roeb, M. ^{[1
]}

Saeck, J. -P. ^{[1
]}

Rietbrock, P. ^{[1
]}

Prahl, C. ^{[2
]}

Schreiber, H. ^{[1
]}

Neises, M. ^{[1
]}

de Oliveira, L. ^{[1
]}

Graf, D. ^{[1
]}

Ebert, M. ^{[2
]}

Reinalter, W. ^{[2
]}

Meyer-Gruenefeldt, M. ^{[2
]}

Sattler, C. ^{[1
]}

Lopez, A. ^{[3
]}

Vidal, A. ^{[3
]}

Elsberg, A. ^{[4
]}

Stobbe, P. ^{[4
]}

Jones, D. ^{[5
]}

Steele, A. ^{[5
]}

Lorentzou, S. ^{[6
]}

Pagkoura, C. ^{[6
]}

Zygogianni, A. ^{[6
]}

Agrafiotis, C. ^{[6
]}

Konstandopoulos, A. G. ^{[6
]}

机构：

[1] Deutsch Zentrum Luft & Raumfahrt eV DLR, Inst Tech Thermodynam, D-51147 Cologne, Germany

[2] Deutsch Zentrum Luft & Raumfahrt eV DLR, Inst Tech Thermodynam, E-04200 Tabernas, Spain

[3] Ctr Invest Energet Medioambientales & Tecnol CIEM, E-04200 Tabernas, Spain

[4] Stobbe Tech Ceram, DK-2840 Holte, Denmark

[5] Johnson Matthey Technol Ctr, Reading RG4 9NH, Berks, England

[6] Ctr Res & Technol Hellas, Aerosol & Particle Technol Lab, Thermi 57001, Greece

来源：

SOLAR ENERGY | 2011年 / 85卷 / 04期

关键词：

Thermochemical cycle; Hydrogen; Ferrites; Receiver-reactor; Solar tower; IRON-OXIDE;

D O I：

10.1016/j.solener.2010.04.014

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The present work describes the realisation and successful test operation of a 100 kW pilot plant for two-step solar thermo-chemical water splitting on a solar tower at the Plataforma Solar de Almeria, which aims at the demonstration of the feasibility of the process on a solar tower platform under real conditions. The process applies multi-valent iron based mixed metal oxides as reactive species which are coated on honeycomb absorbers inside a receiver-reactor. By the introduction of a two-chamber reactor it is possible to run both process concepts in parallel and thus, the hydrogen production process in a quasi-continuous mode. In summer 2008 an exhaustive thermal qualification of the pilot plant took place, using uncoated ceramic honeycombs as absorbers. Some main aspects of these tests were the development and validation of operational and measurement strategy, the gaining of knowledge on the dynamics of the system, in particular during thermal cycling, the determination of the controllability of the whole system, and the validation of practicability of the control concept. The thermal tests enabled to improve, to refine and finally to prove the process strategy and showed the feasibility of the control concept implemented. It could be shown that rapid changeover between the modules is a central benefit for the performance of the process. In November of 2008 the absorber was replaced and honeycombs coated with redox material were inserted. This allowed carrying out tests of hydrogen production by water splitting. Several hydrogen production cycles and metal oxide reduction cycles could be run without problems. Significant concentrations of hydrogen were produced with a conversion of steam of up to 30%. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：634 / 644

页数：11

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