Predicted performance of a ceramic foam gas phase heat recuperator for a solar thermochemical reactor

Rohini Bala Chandran, Aayan Banerjee, Jane H. Davidson

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)

Abstract

The efficiency of solar thermochemical cycles to split water and carbon dioxide depends in large part on highly effective gas phase heat recovery. Heat recovery is imperative for approaches that rely on an inert sweep gas to reach low partial pressures of oxygen during thermal reduction and/or use excess oxidizer to provide a higher thermodynamic driving potential for fuel production. In this paper, we analyze heat transfer and pressure drop of a tube-in-tube ceramic heat exchanger for the operating conditions expected in a prototype solar reactor for isothermal cycling of ceria. The ceramic tubes are filled with reticulated porous ceramic (RPC). The impacts of the selection of the composition and morphology of the RPC on heat transfer and pressure drop are explored via computational analysis. Results indicate a 10 pore per inch (ppi), 80-85% porous alumina RPC yields effectiveness from 85 to 90 percent.

Original languageEnglish
Title of host publicationASME 2014 8th International Conference on Energy Sustainability, ES 2014 Collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791845868
DOIs
Publication statusPublished - 2014
Externally publishedYes
EventASME 2014 8th International Conference on Energy Sustainability, ES 2014 - Boston, United States
Duration: 30 Jun 20142 Jul 2014
Conference number: 8

Conference

ConferenceASME 2014 8th International Conference on Energy Sustainability, ES 2014
Abbreviated titleES 2014
CountryUnited States
CityBoston
Period30/06/142/07/14
OtherCollocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology

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