Thermal-hydraulic computer code calculations have been performed to simulate the symptoms presented to the operator to diagnose challenges to the critical safety functions (CSFs).
This evaluation is accomplished by systematically evaluating the procedures using specialized thermal-hydraulic computer codes designed for nuclear reactor plant simulation.
Since the existing thermal-hydraulic computer codes for light water reactors are not applicable to supercritical water cooled reactors (SCWRs) owing to the limitation of physical models and numerical treatments, the development of a reliable thermal-hydraulic computer code is very important to design analysis and safety assessment of SCWRs.
General Jones declined today to provide details about the causes of the hydraulic and computer malfunctions that he said led to the December crash.
The commandant of the Marine Corps said hydraulic and computer problems, not the design of the V-22 Osprey tilt-rotor aircraft, caused a fatal Dec. 11 crash.
The technological toolbox for producing oil from shale — horizontal drilling, hydraulic fracturing, computer seismic studies and other services and equipment — is available on the oil services market.
A20 Design Not Cause of Crash The Marine Corps commandant said investigators had found that the fatal crash of a V-22 Osprey on Dec. 11 resulted from hydraulic and computer failures, not the tilt-rotor design.
The Marine Corps has conclusively determined that the Dec. 11 crash of a V-22 Osprey that killed four marines was a result of hydraulic and computer failures, not the aircraft's hybrid tilt-rotor design, the commandant of the corps said today.
The analyses have been made using the ATHENA thermal-hydraulic system computer code.
For this purpose a one-dimensional thermal-hydraulic analysis computer program was developed.
The system is composed of main control computer, hydraulic controller, three axial pressure sources, digital controller, manual controller, hydraulic actuator and hydraulic source.
