Experimental evaluation of a pilot-scale thermochemical storage system for a concentrated solar power plant

被引：92

作者：

Tescari, S. ^{[1
]}

Singh, A. ^{[1
]}

Agrafiotis, C. ^{[1
]}

de Oliveira, L. ^{[1
]}

Breuer, S. ^{[1
]}

Schloegl-Knothe, B. ^{[1
]}

Roeb, M. ^{[1
]}

Sattler, C. ^{[1
]}

机构：

[1] German Aerosp Ctr DLR, Inst Solar Res, D-51147 Cologne, Germany

来源：

APPLIED ENERGY | 2017年 / 189卷

关键词：

Concentrated solar energy; Energy storage; Thermochemical storage; Cobalt oxide; Redox cycles; Pilot-scale system; OXIDE-BASED HONEYCOMBS; ENERGY-STORAGE; HEAT-STORAGE; HIGH-TEMPERATURE; REVERSIBLE-REACTIONS; REDOX REACTIONS; COBALT; CYCLES; EXPLOITATION; REACTOR;

D O I：

10.1016/j.apenergy.2016.12.032

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：

A first of its kind pilot-scale redox-based thermochemical storage system has been set up and operated under near-realistic conditions inside a solar power tower plant. The storage unit is made of inert honeycomb supports (cordierite) coated with 88 kg of redox active material (cobalt oxide). An experimental campaign has been carried out consisting of 22 thermochemical charge-discharge cycles. The heat absorbed or released by the chemical reaction became clearly evident through the temperature evolution inside the reactive material. It allows to store or release energy at constant temperature when crossing respectively the reduction/oxidation temperature of the Co3O4/CoO pair. A storage performance factor (P-F) was defined to evaluate how each experiment approaches the ideal behavior. During the complete campaign no measurable cycle-to-cycle degradation was observed and the system average capacity was very close to the ideal case of P-F = 0.84. The advantage of thermochemical storage could be quantified by comparing the storage capacity, to that of a sensible-only storage unit made of uncoated cordierite honeycombs. The thermochemical system offered almost double storage capacity (47.0 kW h) cf. the same volume of the sensible-only case (25.3 kW h). (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：66 / 75

页数：10

共 45 条

[1] Hybrid sensible/thermochemical solar energy storage concepts based on porous ceramic structures and redox pair oxides chemistry [J].

Agrafiotis, C. ;

Roeb, M. ;

Sattler, C. .

INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL ENERGY SYSTEMS, SOLARPACES 2014, 2015, 69 :706-715

[2]

Agrafiotis C, 2015, AIP C P 2015 SOLARPA

[3] Exploitation of thermochemical cycles based on solid oxide redox systems for thermochemical storage of solar heat. Part 5: Testing of porous ceramic honeycomb and foam cascades based on cobalt and manganese oxides for hybrid sensible/thermochemical heat storage [J].

Agrafiotis, Christos ;

Becker, Andreas ;

Roeb, Martin ;

Sattler, Christian .

SOLAR ENERGY, 2016, 139 :676-694

[4] Exploitation of thermochemical cycles based on solid oxide redox systems for thermochemical storage of solar heat. Part 2: Redox oxide-coated porous ceramic structures as integrated thermochemical reactors/heat exchangers [J].

Agrafiotis, Christos ;

Roeb, Martin ;

Schmuecker, Martin ;

Sattler, Christian .

SOLAR ENERGY, 2015, 114 :440-458

[5] Exploitation of thermochemical cycles based on solid oxide redox systems for thermochemical storage of solar heat. Part 1: Testing of cobalt oxide-based powders [J].

Agrafiotis, Christos ;

Roeb, Martin ;

Schmuecker, Martin ;

Sattler, Christian .

SOLAR ENERGY, 2014, 102 :189-211

[6] Thermodynamically consistent modeling of redox-stable perovskite oxides for thermochemical energy conversion and storage [J].

Albrecht, Kevin J. ;

Jackson, Gregory S. ;

Braun, Robert J. .

APPLIED ENERGY, 2016, 165 :285-296

[7] First experimental studies of solar redox reactions of copper oxides for thermochemical energy storage [J].

Alonso, Elisa ;

Perez-Rabago, Carlos ;

Licurgo, Javier ;

Fuentealba, Edward ;

Estrada, Claudio A. .

SOLAR ENERGY, 2015, 115 :297-305

[8] Screening of thermochemical systems based on solid-gas reversible reactions for high temperature solar thermal energy storage [J].

Andre, Laurie ;

Abanades, Stephane ;

Flamant, Gilles .

RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2016, 64 :703-715

[9]

[Anonymous], 2010, VDI Heat Atlas, VSecond

[10] Doped calcium manganites for advanced high-temperature thermochemical energy storage [J].

Babiniec, Sean M. ;

Coker, Eric N. ;

Miller, James E. ;

Ambrosini, Andrea .

INTERNATIONAL JOURNAL OF ENERGY RESEARCH, 2016, 40 (02) :280-284

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