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Preliminary report on the flow no-flow indicator for the BI-GAS char line

Technical Report ·
DOI:https://doi.org/10.2172/6916706· OSTI ID:6916706
The BI-GAS coal gasification pilot plant at Homer City, Pa. has an urgent need for monitoring char flow to the gasifier. The feed lines contain finely divided char in a steam carrier and operate at 800/sup 0/F and 1650 psi. A high temperature microphone, developed at ANL, has been installed in one char feed line with the goal of distinguishing between flow and no-flow conditions. The microphone signal is amplified and spectrum analyzed to reveal signal components associated with both char flow and steam flow. So far, we have obtained data only on the background steam noise, because operational problems at the pilot plant have delayed the start of char flow since our microphone was installed. The steam flow provides a strong microphone signal with a rich spectral content extending to about 45 kHz. Char flow data are scheduled to be taken during summer 1978.
Research Organization:
Argonne National Lab., IL (USA)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
6916706
Report Number(s):
ANL-FE--49622-TM02
Country of Publication:
United States
Language:
English