| Numerical and Experimental Evaluation of Ceramic
Honeycombs for Thermal Energy Storage |
Ojasve Srikanth,1 Sagar D. Khivsara,2,* R. Aswathi,1 C. D. Madhusoodana,1
Rathindra Nath Das,1 Vinod Srinivasan2 and Pradip Dutta2
Pages : 102-107
DOI : 10.1080/0371750X.2017.1281763 |
| Abstract |
| Thermal energy storage at high temperature is a challenging research area with typical
applications like regenerative heating in steel production plants and auxiliary energy
source in solar thermal plants. Honeycomb structures made of ceramics are used as
high temperature thermal energy storage units because of their large heat transfer
surface area per unit volume, large thermal capacity and good thermal shock
resistance. The material properties and geometric parameters of these units determine
the storage capacity and heat addition/retrieval rate. A thorough understanding of the
thermal response of storage unit at different process conditions is crucial for designing
the system.
In this work, new compositions of mullite and chromite based ceramic honeycombs
were developed for high temperature thermal storage application. An experiment was
designed to evaluate the performance of the ceramic honeycomb in the temperature
range of 773-1273 K by studying the storing and discharging characteristics in cyclic
mode. Numerical studies using ANSYS Fluent have been presented to predict the
effect of honeycomb design, material properties and flow rates on thermal energy
storage and heat transfer characteristics. This data are used to validate the
experimental results and for designing an optimum thermal energy storage system.
[Keywords: Ceramic honeycomb, High temperature, Sensible heat storage, Cyclic
performance] |
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