X hits on this document

Word document

MOLTEN-SALT REACTOR PROGRAM - page 68 / 122

502 views

0 shares

0 downloads

0 comments

68 / 122

ORNL-4344

MOLTEN-SALT REACTOR PROGRAM

SEMIANNUAL PROGRESS REPORT

For Period Ending August 31, 1968

INTRODUCTIONxi

SUMMARYxiii

PART 1. MOLTEN-SALT REACTOR EXPERIMENT

1. MSRE OPERATIONS1

1.1 Chronological Account of Operations and Maintenance1

1.2 Chemical Processing4

1.2.1 Operating Summary4

1.2.2 Data Analysis6

1.2.3 Equipment Performance10

1.3 Reactor Operations Analysis12

1.3.1 Long-Term Variations in Reactivity12

1.3.2 Reactivity Effects of Radiation Damage to Graphite14

1.3.3 Dynamics Tests at the End of 235U Operation14

1.3.4 Correlation of Circulating Void Fraction and Neutron Noise18

1.3.5 Determination of Circulating Void Fraction19

1.3.6 Neutron Flux near Reactor Vessel19

1.3.7 Observation of Fission Products After Shutdown22

1.3.8 Unscheduled Scrams During 235U Operation24

1.3.9 Thermal Cycle History24

1.4 Equipment24

1.4.1 Heat Transfer24

1.4.2 Salt Samplers26

1.4.3 Control Rods and Drives29

1.4.4 Radiator Enclosure29

1.4.5 Off-Gas System30

1.4.6 Main Blowers30

1.4.7 Heaters31

1.4.8 Oil Systems for Salt Pumps31

1.4.9 Component Cooling System31

1.4.10 Containment and Ventilation32

2. COMPONENT DEVELOPMENT33

2.1 Freeze-Flange Thermal-Cycle Tests33

2.1.1 Facility Operation Problems33

2.1.2 Inspection of the Flanges33

2.2 Gamma Spectrometric Measurements of Fission Product Deposition36

2.3 Gamma Source Mapping with Pinhole Camera Photography40

2.4 Pumps40

2.4.1 Mark 2 Fuel Pump40

2.4.2 Oil Pump Endurance40

3. INSTRUMENTS AND CONTROLS43

3.1 MSRE Operating Experience43

3.2 Control System Design43

Document info
Document views502
Page views502
Page last viewedFri Jan 20 01:59:14 UTC 2017
Pages122
Paragraphs5226
Words27095

Comments