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http://dx.doi.org/10.7316/KHNES.2018.29.6.635

Hydrodynamics and Solid Circulation Characteristics of Oxygen Carrier for 0.5 MWth Chemical Looping Combustion System  

RYU, HO-JUNG (Korea Institute of Energy Research)
KIM, JUNGHWAN (Korea Institute of Energy Research)
HWANG, BYUNG WOOK (Korea Institute of Energy Research)
NAM, HYUNGSEOK (Korea Institute of Energy Research)
LEE, DOYEON (Korea Institute of Energy Research)
JO, SUNG-HO (Korea Institute of Energy Research)
BAEK, JEOM-IN (Korea Electric Power Corporation (KEPCO) Research Institute)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.29, no.6, 2018 , pp. 635-641 More about this Journal
Abstract
To select the operating condition of 0.5 MWth chemical looping combustion system, minimum fluidization velocity, transition velocity to fast fluidization and solid circulation rate were measured using mass produced new oxygen carrier (N016-R4) which produced by spray drying method for 0.5 MWth chemical looping combustion system. A minimum fluidization velocity decreased as the pressure increased. The measured transition velocity to fast fluidization was 2.0 m/s at ambient temperature and pressure. The measured solid circulation rate increased as the solid control valve opening increased. We could control the solid circulation rate from 26 to $93kg/m^2s$. Based on the measured minimum fluidization velocity and transition velocity to fast fluidization, we choose appropriate operating conditions and demonstrated continuous solid circulation at high pressure condition (5 bar-abs) up to 24 hours.
Keywords
Chemical looping combustion; Oxygen carrier; Minimum fluidization velocity; Transition velocity to fast fluidization; Solid circulation;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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