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http://dx.doi.org/10.7316/KHNES.2017.28.6.618

Partial Insulation and Heating Tubes Configuration of Shell and Tube Steam Reformer at Medium Temperature  

PARK, DAIN (Graduate. School of Chungnam University)
YU, SANGSEOK (School of Mechanical Engineering, Chungnam University)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.28, no.6, 2017 , pp. 618-626 More about this Journal
Abstract
Conventional high temperature reformers are not suitable for hybrid fuel cell systems that use waste heat as a heat source. So, development of a low temperature type reformer is needed. However, the analysis was conducted in two ways to increase the thermal efficiency, because of low reforming rate due to the low heat source. First, it is a way to ger thermal gain from the outside through partial insulation. In the case of one heat source tube and several heat source tubes, we analyzed the effect of partial heat insulation in some cases. Second, we found the most efficient arrangement of the heat source tubes by changing the location of the heat source tubes. The interpretation was carred out using the COMSOL Mutiphysics program.
Keywords
Steam reformer; Shell and tube type; Partial insulation; Medium temperature heat source; External air heat transfer;
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Times Cited By KSCI : 3  (Citation Analysis)
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