Read e-book online Accid. Anal. - Nuclear Powerplants with PWRs PDF

Read or Download Accid. Anal. - Nuclear Powerplants with PWRs PDF

Similar nuclear books

Download e-book for iPad: Nuclear Waste Disposal. Can We Rely on Bedrock? by Ulf Lindblom, Paul Gnirk

Nuclear Waste Disposal: do we depend upon Bedrock? covers the aptitude effectiveness of mined geologic disposal of nuclear wastes. The e-book discusses the shape and ultimate disposal of nuclear wastes, together with replacement equipment of nuclear waste disposal. The textual content additionally describes the constitution of challenging rock and salt formations; the formation of groundwater; the amount and pace of groundwater move; and the groundwater movement close to the repository and during the disposal rooms and to the outside.

Download PDF by Stephan Frühling, Michael Clarke: Australia's Uranium Trade : The Domestic and Foreign Policy

Australia's Uranium exchange explores why the export of uranium is still a hugely arguable factor in Australia and the way this impacts Australia's engagement with the strategic, regime and marketplace geographical regions of overseas nuclear affairs. The ebook specializes in the foremost demanding situations dealing with Australian coverage makers in a twenty-first century context the place civilian nuclear strength intake is increasing considerably whereas while the overseas nuclear nonproliferation regime is topic to expanding, and extraordinary, pressures.

Additional resources for Accid. Anal. - Nuclear Powerplants with PWRs

Sample text

3. SECONDARY PRESSURE CONTROL MALFUNCTION WITH AN INCREASE OF STEAM FLOW RATE Such events are initiated by a secondary pressure controller malfunction. 2). 4. 1. Initiating events and safety aspects Two types of event are considered: — Malfunctions that increase feedwater flow (a failure of a feedwater control valve); — Malfunctions that decrease feedwater temperature (a failure of a feedwater preheater). Both events lead to an increase of heat removal by the secondary side, thus reducing primary coolant temperature and increasing the reactor power due to reactivity feedback.

The spiking of noble gases is comparatively small and has a completely different time trend. The spiking factor proposed in the literature for noble gases is SF = 10, Ref. [10]. The possibility that secondary side SG safety valve(s) or steam dump(s) to the atmosphere are stuck open after their actuation has to be considered, in particular if these devices are not qualified for two phase flow. Generally, the systems not qualified for relevant accident conditions need to be considered to fail, particularly if such a failure leads to a worsening of the consequences (especially failure of isolation devices to close).

2. Specific suggestions for analysis A dropped CR or withdrawal of one CR has to be analysed as a transient problem. Misalignment of a CR can be analysed as a steady state problem. 2 for the case of ejection of one CR). For the dropped rod case, a sensitivity study has to be performed to search for different possible combinations of rods that drop and various single failures in reactor trip actuation. A 3-D neutronic calculation has to be performed to estimate the effect on the ex-core neutron detectors used to actuate the reactor trip system, or a conservative approach needs to consider the case in which no reactor trip is directly caused by the rate of change in neutron flux.

Download PDF sample

Accid. Anal. - Nuclear Powerplants with PWRs


by Kevin
4.0

Rated 4.08 of 5 – based on 38 votes