Environmental Engineering Reference
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Fig. 6 a CO
2
and O
2
concentration at fuel reactor outlet and b O
2
concentration at air reactor
outlet
Fig. 7 Comparison of overall
power between the simulation
and the experiment
discrepancy between the simulation and the experiment could be attributed to
different working conditions in the experimental apparatus that are slightly different
from the corresponding block parameters in ASPEN Plus. In addition, losses at each
location in the experimental apparatus are inevitable, but these cannot be accurately
captured in the simulation.
3.3 Scaled-up Simulations of CLOU Process
Scaling up is an essential step toward the realization and optimization of com-
mercial power plants. Four scaled-up simulations were conducted by increasing the
coal feeding rate. The oxygen carrier circulation rate and air supply rate were also
scaled up accordingly to meet the demand of the increased coal feed. Other mod-
eling parameters such as the reactor ef
ciency and coal decomposition rate remain
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