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

Technical Report · Mon Jan 01 00:00:00 EST 1990

DOI:https://doi.org/10.2172/6502313· OSTI ID:6502313

Dense-phase pneumatic transport is an attractive means of conveying solids. 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. A prototype of the optical fiber probe was tested during the previous quarter. In the present reporting period, we have constructed a final version of the optical fiber probe. Another widely used a method for measuring particle volume fraction inside a transport systems consists of measuring the light back-scattered from the suspension onto an optical fiber. We have simulated the performance of this optical probe using a Monte-Carlo technique. 2 refs., 5 figs.

• Research Organization: Cornell Univ., Ithaca, NY (United States)
• Sponsoring Organization: DOE/FE
• DOE Contract Number: AC22-88PC88947
• OSTI ID: 6502313
• Report Number(s): DOE/PC/88947-T8; ON: DE91004206
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
47 OTHER INSTRUMENTATION
COAL
PNEUMATIC TRANSPORT
PROBES
DESIGN
VELOCITY
MEASURING METHODS
ANEMOMETERS
CAPACITANCE
MONTE CARLO METHOD
OPTICAL FIBERS
PROGRESS REPORT
CARBONACEOUS MATERIALS
DOCUMENT TYPES
ELECTRICAL PROPERTIES
ENERGY SOURCES
FIBERS
FOSSIL FUELS
FUELS
MATERIALS
MEASURING INSTRUMENTS
PHYSICAL PROPERTIES
TRANSPORT
010300* - Coal
Lignite
& Peat- Preparation- (1987-)
440800 - Miscellaneous Instrumentation- (1990-)