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Title: Differences between the TERF and the ERS tritium capture systems

Abstract

The TERF and the ERS tritium capture systems are alike in that they both use the oxidize and dry'' principle to remove tritium from gases, but they differ significantly in engineering details. The newer TERF system benefited in many ways from experience with the ERS. The TERF is expected to: (1) operate at a higher pressure, leading to greater throughput, (2) have redesigned reactors with better efficiency to process tritiated organic compounds, (3) have better energy conservation, (4) use an advanced process control system to provide more versatility in operation of the system, to account for the amount of tritium in the system at all times, and to more completely log operating results, (5) utilize more corrosion resistant materials to minimize maintenance, and (6) provide double containment of all pressurized tritium containing equipment to reduce tritium losses and increase operating safety. 6 refs.

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
EG and G Mound Applied Technologies, Miamisburg, OH (United States)
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
5911139
Report Number(s):
MLM-3723(OP); CONF-910920-12
ON: DE92004005
DOE Contract Number:
AC04-88DP43495
Resource Type:
Conference
Resource Relation:
Conference: 4. topical meeting on tritium technology in fission, fusion, and isotopic applications, Albuquerque, NM (United States), 30 Sep - 4 Oct 1991
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; COMPARATIVE EVALUATIONS; EXHAUST GASES; DECONTAMINATION; TRITIUM; RADIOACTIVE WASTE PROCESSING; MAINTENANCE; MOUND LABORATORY; PROCESS CONTROL; RADIOACTIVE WASTE FACILITIES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CLEANING; CONTROL; EVALUATION; FLUIDS; GASEOUS WASTES; GASES; HYDROGEN ISOTOPES; ISOTOPES; LIGHT NUCLEI; MANAGEMENT; NATIONAL ORGANIZATIONS; NUCLEAR FACILITIES; NUCLEI; ODD-EVEN NUCLEI; PROCESSING; RADIOACTIVE WASTE MANAGEMENT; RADIOISOTOPES; US AEC; US DOE; US ERDA; US ORGANIZATIONS; WASTE MANAGEMENT; WASTE PROCESSING; WASTES; YEARS LIVING RADIOISOTOPES; 052001* - Nuclear Fuels- Waste Processing

Citation Formats

Hedley, W.H., Lamberger, P.H., Colvin, C.M., Gibbs, G.E., Adams, F.S., Bowser, R.P., Kissner, T.J., Morgan, F.E., Schmidt, M.J., Van Patten, J.F., and Wieneke, R.E.. Differences between the TERF and the ERS tritium capture systems. United States: N. p., 1991. Web.
Hedley, W.H., Lamberger, P.H., Colvin, C.M., Gibbs, G.E., Adams, F.S., Bowser, R.P., Kissner, T.J., Morgan, F.E., Schmidt, M.J., Van Patten, J.F., & Wieneke, R.E.. Differences between the TERF and the ERS tritium capture systems. United States.
Hedley, W.H., Lamberger, P.H., Colvin, C.M., Gibbs, G.E., Adams, F.S., Bowser, R.P., Kissner, T.J., Morgan, F.E., Schmidt, M.J., Van Patten, J.F., and Wieneke, R.E.. Tue . "Differences between the TERF and the ERS tritium capture systems". United States. doi:.
@article{osti_5911139,
title = {Differences between the TERF and the ERS tritium capture systems},
author = {Hedley, W.H. and Lamberger, P.H. and Colvin, C.M. and Gibbs, G.E. and Adams, F.S. and Bowser, R.P. and Kissner, T.J. and Morgan, F.E. and Schmidt, M.J. and Van Patten, J.F. and Wieneke, R.E.},
abstractNote = {The TERF and the ERS tritium capture systems are alike in that they both use the oxidize and dry'' principle to remove tritium from gases, but they differ significantly in engineering details. The newer TERF system benefited in many ways from experience with the ERS. The TERF is expected to: (1) operate at a higher pressure, leading to greater throughput, (2) have redesigned reactors with better efficiency to process tritiated organic compounds, (3) have better energy conservation, (4) use an advanced process control system to provide more versatility in operation of the system, to account for the amount of tritium in the system at all times, and to more completely log operating results, (5) utilize more corrosion resistant materials to minimize maintenance, and (6) provide double containment of all pressurized tritium containing equipment to reduce tritium losses and increase operating safety. 6 refs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1991},
month = {Tue Jan 01 00:00:00 EST 1991}
}

Conference:
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  • This paper reports on the TERF and the ERS tritium capture systems which are alike in that they both use the oxidize and dry principle to remove tritium from gases, but they differ significantly in engineering details. The newer TERF system benefited in many ways from experience with the ERS. The TERF is expected to: operate at a higher pressure, leading to greater throughput, have redesigned reactors with better efficiency to process tritiated organic compounds, have better energy conservation, use an advanced process control system to provide more versatility in operation of the system, to account for the amount ofmore » tritium in the system at all times, and to more completely log operating results, utilize more corrosion resistant materials to minimize maintenance, and provide double containment of all pressurized tritium containing equipment to reduce tritium losses and increase operating safety.« less
  • The TERF and the ERS tritium capture systems are alike in that they both use the ``oxidize and dry`` principle to remove tritium from gases, but they differ significantly in engineering details. The newer TERF system benefited in many ways from experience with the ERS. The TERF is expected to: (1) operate at a higher pressure, leading to greater throughput, (2) have redesigned reactors with better efficiency to process tritiated organic compounds, (3) have better energy conservation, (4) use an advanced process control system to provide more versatility in operation of the system, to account for the amount of tritiummore » in the system at all times, and to more completely log operating results, (5) utilize more corrosion resistant materials to minimize maintenance, and (6) provide double containment of all pressurized tritium containing equipment to reduce tritium losses and increase operating safety. 6 refs.« less
  • This paper reports on a probabilistic risk assessment made on the TERF process in order to establish its expected degree of reliability and to locate places in the system which could be improved by revision of the equipment or the operating procedures. The equipment design of the TERF was evaluated using a fault tree study. The probability of human failures was then evaluated by adding their probabilistic effects to the fault tree and then reevaluating it. It was found that the TERF system is expected to be very reliable, with an annual expected downtime of only 2.35 ours, the expectedmore » downtime comes almost entirely from process equipment failure rather than human errors, and that certain equipment changes could be made that increased the system reliability. These equipment changes included making provision for blocking off certain automatic control valves with more reliable manual valves to facilitate their repair and making the two sources of power to the TERF totally independent of each other.« less
  • A probabilistic risk assessment was made on the TERF process in order to establish its expected degree of reliability and to locate places in the system which could be improved by revision of the equipment or the operating procedures. The equipment design of the TERF was evaluated using a fault tree study. The probability of human failures was then evaluated by adding their probabilistic effects to the fault tree and then reevaluating it. It was found that (1) the TERF system is expected to be very reliable, with an annual expected downtime of only 2.35 hours, (2) the expected downtimemore » comes almost entirely from process equipment failure rather than human errors, and (3) that certain equipment changes could be made that increased the system reliability. These equipment changes included: (1) making provision for blocking off certain automatic control values with more reliable manual valves to facilitate their repair and (2) making the two sources of power to the TERF totally independent of each other. 6 refs.« less
  • A probabilistic risk assessment was made on the TERF process in order to establish its expected degree of reliability and to locate places in the system which could be improved by revision of the equipment or the operating procedures. The equipment design of the TERF was evaluated using a fault tree study. The probability of human failures was then evaluated by adding their probabilistic effects to the fault tree and then reevaluating it. It was found that (1) the TERF system is expected to be very reliable, with an annual expected downtime of only 2.35 hours, (2) the expected downtimemore » comes almost entirely from process equipment failure rather than human errors, and (3) that certain equipment changes could be made that increased the system reliability. These equipment changes included: (1) making provision for blocking off certain automatic control values with more reliable manual valves to facilitate their repair and (2) making the two sources of power to the TERF totally independent of each other. 6 refs.« less