Coal water mixture development: Quarterly technical progress report

Technical Report · Mon Jan 13 04:00:00 EST 1986

OSTI ID:7042764

To evaluate equipment/component wear in coal water mixture (CWM) service, twenty-one equipment and instrumentation items were selected for dismantling and inspection, including: all four pumps, the heat exchanger, control valves, pressure relief valve, magnetic flow meters, in-line viscometers, density meters, pressure isolation spools, pressure transmitter, and material test spools. All the selected items have been removed from the test loop, and commitments have been obtained from vendor representatives for performing final inspections and reporting results. Based on the results reported to date on the inspection of the progressive cavity pump, the twin screw pump, the diaphragm pump, the heat exchanger, and material test spools, there was little or no apparent wear for these equipment items in CWM service. Additional reports on test and inspection results will be received in the forthcoming quarter. Evaluations of the pump performance data and the spiral heat exchanger data have both been completed. For either the twin screw pump or the progressive cavity pump, no degradation in pump performance was observed. In addition, the performance of the nuclear density meter was assessed by comparing its meter readings to laboratory measurements of the densities of CWM samples obtained concurrently from the test loop. The assessment results showed that the two readings were usually within 98 and 101% of each other. The Spi-Wear surface layer activation technique was utilized to measure the material loss of pipe components in CWM service. Measurements were made of four irradiated pipe components. Analysis of the data collected indicated the following annual corrosion/erosion rates for these pipe components (in thousandths of an inch per year, or mpy): 3-inch elbow - 7.1, 3-inch tee - 11.0, 1-inch elbow - 8.5, and straight section - 3.2. 1 fig., 3 tabs.

• Research Organization: TRW Space and Technology Group, Redondo Beach, CA (USA)
• DOE Contract Number: AC22-82PC50270
• OSTI ID: 7042764
• Report Number(s): DOE/PC/50270-T13; ON: DE87003131
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600 -- Coal
Lignite
& Peat-- Properties & Composition
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
CONTROL EQUIPMENT
CORRELATIONS
CORROSION
CORROSIVE EFFECTS
DATA
DENSIMETERS
DISPERSIONS
ENERGY SOURCES
EQUIPMENT
EROSION
EXPERIMENTAL DATA
FLOW RATE
FLOW REGULATORS
FLOWMETERS
FOSSIL FUELS
FUEL FEEDING SYSTEMS
FUEL SLURRIES
FUEL SYSTEMS
FUELS
HEAT EXCHANGERS
HYDROGEN COMPOUNDS
INFORMATION
MATERIALS
MEASURING INSTRUMENTS
METERS
MIXTURES
NUMERICAL DATA
OXYGEN COMPOUNDS
PERFORMANCE
PIPES
PRESSURE DEPENDENCE
PUMPS
RESEARCH PROGRAMS
SLURRIES
SUSPENSIONS
TEST FACILITIES
TESTING
VALVES
WATER