Improvement of continuous solid circulation rate measurement in a cold flow circulating fluidized bed
A method is described to independently estimate the solids velocity and voidage in the moving bed portion of the NETL circulating fluidized bed (CFB). These quantities are used by a device that continuously measures the solids circulation rate. The device is based on the use of a rotating Spiral vane installed in the standpipe of a circulating fluid bed (CFB). Correlations were developed from transient experiments and steady state mass balance data to correct the solids velocity and solids fraction in the standpipe as a function of standpipe aeration rate. A set of statisticallydesigned experiments was used to establish the need for these corrections and to verify the accuracy of solid circulation rate measurements after correction. The differences between the original and corrected measurements were quantitatively compared.
- Research Organization:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
- Sponsoring Organization:
- USDOE - Office of Fossil Energy (FE)
- DOE Contract Number:
- None cited
- OSTI ID:
- 933144
- Report Number(s):
- DOE/NETL-IR-2008-171; NETL-TPR-1563; TRN: US200814%%713
- Journal Information:
- Powder Technology, Vol. 182, Issue 3; ISSN 0032-5910
- Publisher:
- Elsevier B.V.
- Country of Publication:
- United States
- Language:
- English
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