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Fabrication and testing of CONTISOL: A new receiver-reactor for day and night solar thermochemistry

Lapp, Justin and Lange, Matthias and Rieping, Rene and de Oliveira, Lamark and Roeb, Martin and Sattler, Christian (2017) Fabrication and testing of CONTISOL: A new receiver-reactor for day and night solar thermochemistry. Applied Thermal Engineering, 127, pp. 46-57. Elsevier. doi: 10.1016/j.applthermaleng.2017.08.001. ISSN 1359-4311.

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Official URL: http://ac.els-cdn.com/S1359431116328502/1-s2.0-S1359431116328502-main.pdf?_tid=fb16e934-8313-11e7-96ff-00000aacb362&acdnat=1502950931_5589430ad5a3b575236e3a531cd4f3de


The CONTISOL concept is a new vision of an integrated solar receiver/reactor for a variety of thermochemical processes. The concept includes a single monolithic solar absorber with two inter-mixed, but nonintersecting sets of gas channels. One set of channels is always used for a chemical process. During daytime operation, the other set of channels is used to heat air which is sent to thermal storage. During nighttime operation, the air flow is reversed, transferring heat from thermal storage to the Monolith through the same set of channels, thus providing energy to continue chemical processing continuously through day and night. In this paper we introduce the general operation of the system and discuss its benefits applied to solar methane reforming as an example process. Past solar reactors which influenced the development of CONTISOL are discussed. A 5 kW scale demonstration prototype has been constructed at DLR and thermal experiments have been conducted using the DLR high flux solar simulator. A statistical design-of-experiments procedure has been applied to evaluate the influence of absorber temperature, gas flow rates, and gas inlet temperatures on heat transfer rates to gas streams, and to construct a thermal performance map of the device. The target gas outlet temperatures of over 850 �C were reached during these tests. Limitations on the initial design of the monolith are discussed including recommendations for future improvements.

Item URL in elib:https://elib.dlr.de/113737/
Document Type:Article
Title:Fabrication and testing of CONTISOL: A new receiver-reactor for day and night solar thermochemistry
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Lapp, JustinJustin.Lapp (at) dlr.deUNSPECIFIED
Lange, MatthiasMatthias.Lange (at) dlr.dehttps://orcid.org/0000-0003-4747-0010
Rieping, ReneRene.Rieping (at) dlr.deUNSPECIFIED
de Oliveira, Lamarklamark.de-oliveira (at) dlr.deUNSPECIFIED
Roeb, MartinMartin.Roeb (at) dlr.deUNSPECIFIED
Sattler, ChristianChristian.Sattler (at) dlr.dehttps://orcid.org/0000-0002-4314-1124
Date:2 August 2017
Journal or Publication Title:Applied Thermal Engineering
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1016/j.applthermaleng.2017.08.001
Page Range:pp. 46-57
Keywords:solar chemistry; solar thermal storage; methane reforming;
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Solar Fuels
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Solar Fuels (old)
Location: Jülich , Köln-Porz
Institutes and Institutions:Institute of Solar Research > Solar Chemical Engineering
Deposited By: Sattler, Prof. Dr. Christian
Deposited On:19 Sep 2017 14:53
Last Modified:06 Sep 2019 15:16

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