Tritium inventory differences: I. Sampling and U-getter pump holdup
Inventory differences (ID) in tritium material balance accounts (MBA) can occur with unmeasured transfers from the process or unmeasured holdup in the system. Small but cumulatively significant quantities of tritium can leave the MBA by normal capillary sampling of process gas operation. A predictor model for estimating the quantity of tritium leaving the MBA by sampling has been developed and implemented. The model calculates the gas transferred per sample; using the tritium concentration in the process and the number of samples, a quantity of tritium transferred is predicted. Verification of the model is made by PVT measurement of process transfer from multiple samplings. Comparison of predicted sample transfers with IDs from several MBA's reveals that sampling typically represents 50% of unmeasured transfers for regularly sampled processes.
- Research Organization:
- Monsanto Research Corp., Mound, Miamisburg, OH 45342
- OSTI ID:
- 7152960
- Report Number(s):
- CONF-860654-; TRN: 86-037889
- Journal Information:
- Nucl. Mater. Manage. Annu. Meet. Proc.; (United States), Vol. 15; Conference: 27. annual meeting of the Institute of Nuclear Materials Management, New Orleans, LA, USA, 22 Jun 1986
- Country of Publication:
- United States
- Language:
- English
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Measurement and prediction of tritium holdup
Measurement and prediction of tritium holdup
Related Subjects
GETTERS
FLOW BLOCKAGE
TRITIUM
GETTERING
INVENTORIES
SAMPLING
ACCOUNTING
DEUTERIUM
DILUTION
FLOW MODELS
GAS FLOW
MATERIAL BALANCE
PERFORMANCE
PRESSURE MEASUREMENT
PUMPS
REGENERATION
TEMPERATURE MEASUREMENT
VOLUME
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
FLUID FLOW
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
RADIOISOTOPES
STABLE ISOTOPES
YEARS LIVING RADIOISOTOPES
700205* - Fusion Power Plant Technology- Fuel
Heating
& Injection Systems