Performance evaluation of different configurations of biogas-fuelled SOFC micro-CHP systems for residential applications

Download
  1. (PDF, 766 KB)
  2. Get@NRC: Performance evaluation of different configurations of biogas-fuelled SOFC micro-CHP systems for residential applications (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1016/j.ijhydene.2010.01.052
AuthorSearch for: ; Search for: ; Search for:
TypeArticle
Journal titleInternational Journal of Hydrogen Energy
Volume35
Issue8
Pages37583768; # of pages: 11
SubjectSolid oxide fuel cell; Micro-combined heat and power system; Biogas; Residential application; Anode gas recirculation; Steam reforming; Partial oxidation
AbstractThree configurations of solid oxide fuel cell (SOFC) micro-combined heat and power (micro-CHP) systems are studied with a particular emphasis on the application for single-family detached dwellings. Biogas is considered to be the primary fuel for the systems studied. In each system, a different method is used for processing the biogas fuel to prevent carbon deposition over the anode of the cells used in the SOFC stack. The anode exit gas recirculation, steamreforming, and partial oxidation are the methods employed in systems I–III, respectively. The results predicted through computer simulation of these systems confirm that the net AC electrical efficiency of around 42.4%, 41.7% and 33.9% are attainable for systems I–III, respectively. Depending on the size, location and building type and design, all the systems studied are suitable to provide the domestic hot water and electric power demands for residential dwellings. The effect of the cell operating voltage at different fuel utilization ratios on the number of cells required for the SOFC stack to generate around 1 kW net AC electric power, the thermal-to-electric ratio (TER), the net AC electrical and CHP efficiencies, the biogas fuel consumption, and the excess air required for controlling the SOFC stack temperature is also studied through a detailed sensitivity analysis. The results point out that the cell design voltage is higher than the cell voltage at which the minimum number of cells is obtained for the SOFC stack.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Chemical Process and Environmental Technology
Peer reviewedYes
NRC number52065
NPARC number16124229
Export citationExport as RIS
Report a correctionReport a correction
Record identifier7fbe2fe7-5ead-4903-944e-9541e107aa82
Record created2010-09-24
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)