Development and utilization of new diagnostics for dense-phase pneumatic transport

Technical Report · Tue Jan 01 00:00:00 EST 1991

DOI:https://doi.org/10.2172/6375501· OSTI ID:6375501

Dense-phase pneumatic transport is an attractive means of conveying solids. Unfortunately, because of the high solid concentrations, this transport method is a difficult regime in which to carry out detailed measurements. Hence most details of the flow are unknown. In this context, the main objective of this work is to develop probes for local measurements of solid velocity and holdup in dense gas-solid flows. In particular, we have designed capacitance probes to measure local, time-dependent particle concentrations, and a new optical fiber probe based on laser-induced-phosphorescence to measure particle velocities. We have described the principle of the capacitance diagnostic in (Particulate Science Tech., 7 51:59 (1989)) and its calibration in (Powder Tech. 62, 85--94 (1990)). In addition, we have recently published data on the optical anemometer in (Applied Optics 30, 1976--81 (1991)). 6 refs., 2 figs.

• Research Organization: Cornell Univ., Ithaca, NY (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC22-88PC88947
• OSTI ID: 6375501
• Report Number(s): DOE/PC/88947-T12; ON: DE92003091
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
47 OTHER INSTRUMENTATION
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
GRANULAR MATERIALS
PNEUMATIC TRANSPORT
VELOCITY
MEASURING INSTRUMENTS
COMPUTERIZED SIMULATION
FLOUR
FLOW MODELS
MULTIPHASE FLOW
OPTICAL FIBERS
PROBES
PROGRESS REPORT
QUANTITY RATIO
SHEAR
SOLIDS FLOW
DOCUMENT TYPES
FIBERS
FLUID FLOW
FOOD
MATERIALS
MATHEMATICAL MODELS
SIMULATION
TRANSPORT
013000* - Coal
Lignite
& Peat- Transport
Handling
& Storage
440800 - Miscellaneous Instrumentation- (1990-)
990200 - Mathematics & Computers