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Topic: D2G reactor


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  Nuclear reactor   (Site not responding. Last check: 2007-09-09)
The fraction of reactor's fuel core replaced during refueling is one-fourth for a boiling-water reactor and one-third a pressurized-water reactor.
Additional reactors were in the navy (United States Naval reactor) In the mid- 1950s both the Soviet Union and western were expanding their nuclear research to include uses of the atom.
A large disadvantage for the use of reactors is the perceived threat of an or terrorist attack and resulting exposure to Proponents contend that the potential for a as in Chernobyl is very small due to the care taken to design adequate safety systems.
www.freeglossary.com /Nuclear_reactor   (3413 words)

  
 [No title]
Nuclear reactors are used for providing heat for electricity generation, domestic and industrial heating, desalination, and naval propulsion, for providing neutron beams for research purposes, and for making radioactive isotopes.
Thermal (slow) reactors are composed of fuel (fissionable material), moderating materials to slow neutrons to low velocities (to prevent capture by U238), heavy-walled pressure vessels to house reactor components, shielding to protect personnel, systems to conduct heat away from the reactor, and instrumentation for monitoring and controlling the reactor's systems.
Additional reactors were used in the navy (United States Naval reactor) In the mid-1950s, both the Soviet Union and western countries were expanding their nuclear research to include non-military uses of the atom.
www.informationclub.com /encyclopedia/n/nu/nuclear_reactor.html   (2597 words)

  
 D2G reactor
The D2G nuclear reactor is found on all US nuclear cruisers with the exception of the USS Long Beach (CGN-9).
US nuclear cruisers were outfitted with two reactors per vessel, with the ability to cross-connect the steam and feed water plants to power both engine rooms from a single reactor.
These reactors were boron-doped vertically for longer core life, and axially for even power distribution without hot spots.
www.ebroadcast.com.au /lookup/encyclopedia/d2/D2G_reactor.html   (178 words)

  
 Wikinfo | Nuclear reactor   (Site not responding. Last check: 2007-09-09)
A nuclear reactor is a device in which nuclear chain reactions are initiated, controlled, and sustained at a steady rate (as opposed to a nuclear explosion, where the chain reaction occurs in a split second).
The reactor was built with radium (from old paint) and americium (from smoke detectors) as sources of alpha particles, which struck aluminum and beryllium to produce fast neutrons.
Some reactors, whether experimental or military, are designed with no concern for making use of the generated heat, as their goal is to make use of the neutron radiation to transmute elements.
www.wikinfo.org /wiki.php?title=Nuclear_power   (3957 words)

  
 ipedia.com: Nuclear reactor Article   (Site not responding. Last check: 2007-09-09)
In a pressurized-water reactor, the High Temperature water in the primary cooling loop is used to transfer heat energy to a secondary loop for the creation of steam.
The fraction of the reactor's fuel core replaced during refueling is typically one-fourth for a boiling-water reactor and one-third for a pressurized-water reactor.
In addition, breeder reactor designs such as CANDU can be used to generate plutonium for bomb making materials (it is believed that the nuclear programs of India and Pakistan used CANDU-like reactors to produce the fissinables for their weapons).
www.ipedia.com /nuclear_reactor.html   (3454 words)

  
 [No title]
Reactor Design In the vast majority of the world's nuclear power plants, heat energy generated by fissioning uranium fuel is collected in purified water and is carried away from the reactor's core either as steam in boiling water reactors or as superheated water in pressurized-water reactors.
While the enriched uranium used in most nuclear reactors is not concentrated enough to build a bomb, the technology used to enrich uranium could be used to make the highly enriched uranium needed to build a bomb.
Fission reactors produce gases such as iodine-131 or krypton-85 which have to be stored on-site for several half-lives until they have decayed to levels officially regarded as safe.
www.cs.pitt.edu /~swapna/arda/demo/wiki-nuclear_power-match.clean/doc   (3724 words)

  
 D2G reactor - Wikipedia, the free encyclopedia
The D2G reactor was a naval reactor used by the United States Navy to provide electricity generation and propulsion on warships.
Rated for a maximum thermal output of 150 megawatts, the reactors were designed to last 15 years with normal usage.
With both reactors running and the steam plants split, the average cruiser could reach 32 knots (59.2 km/h).
en.wikipedia.org /wiki/D2G_reactor   (316 words)

  
 Methods - Design and Applications of the Nuclear Reactor
Thresher, have been lost at sea, though for reasons not related to their reactors, and their wrecks are situated such that the risk of nuclear pollution is considered low.
Some reactors, whether experimental or military, are designed with no concern for making use of the generated heat, as their goal is to make use of the neutron radiation to
The natural nuclear reactors formed when a uranium-rich mineral deposit became inundated with groundwater that acted as a neutron moderator, and a strong chain reaction took place.
www.edinformatics.com /inventions_inventors/nuclear_reactor.htm   (3755 words)

  
 Appendix - The Russian Northern Fleet
The prototype was fitted with a small reactor generating a power of 20 MWt and 2 500 shp.[619] There were considerable technical problems with this submarine, and the prototype was the only one built.
This reactor was used for the first time on board a vessel of the Vanguard class, which is slated to replace the Resolution class of submarines.
A reactor based on the prototype was installed in the first of the Le Redoutable class of ballistic missile submarines.
spb.org.ru /bellona/ehome/russia/nfl/nfla.htm   (1889 words)

  
 Nuclear reactor - Article from FactBug.org - the fast Wikipedia mirror site   (Site not responding. Last check: 2007-09-09)
Two U.S. nuclear submarines, the Scorpion" class="a-lk">USS Scorpion and Thresher" class="a-lk">Thresher, have been lost at sea, though for reasons not related to their reactors, and their wrecks are situated such that the risk of nuclear pollution is considered low.
When a neutron is captured by a fuel nucleus, the nucleus may undergo fission immediately, it may remain in an unstable state for a short while before undergoing fission, or it may fail to undergo fission at all.
Since water serves as a moderator, it cannot be used as a coolant in a fast reactor.
www.factbug.org /cgi-bin/a.cgi?a=22151   (3906 words)

  
 S6G reactor - Wikipedia, the free encyclopedia
The S6G reactor is a naval reactor used by the United States Navy to provide electricity generation and propulsion on warships.
This nuclear reactor was designed by General Electric for use on the Los Angeles class attack submarines.
The S6G reactor plant was originally designed to use the D1G-2 core, similar to the D2G reactor used on the Bainbridge class guided missile cruiser, which is rated at 148 MW.
en.wikipedia.org /wiki/S6G_reactor   (260 words)

  
 Nuclear_reactor : Essential Historical Information, explanation, recent texts, monographs, and relevant links.
All pebble bed modular reactors designed to date can also be refueled under load.
Advanced reactors More than a dozen advanced reactor designs are in various stages of development.
History Enrico Fermi and Leo Szilard were the first to build a nuclear pile and demonstrate a controlled chain reaction.
www.llpoh.org /Reviewing_the_20th_century/Nuclear_reactor.html   (3291 words)

  
 Nuclear reactor : Nuclear power plant
Proposed designs for fast power reactors, cooled by liquid metal, have also been of two types, called pool and loop reactors.
Low dose radiation released under normal operating conditions or during waste spills is also a concern, but proponents point out that the radiation released from a nuclear reactor under normal circumstances is less that the exposure from the waste of a coal fired plant.
The emissions problems of fossil fuels go beyond the area of greenhouse gases to include acid gases (sulfur dioxide and nitrogen oxides), particulates, heavy metals (notably mercury, but also including radioactive materials), and solid wastes such as ash.
www.fastload.org /nu/Nuclear_power_plant.html   (2417 words)

  
 Essay 4
Some of the common types of reactors that are in use are: pressurized water reactors (PWR), boiling water reactors (BWR), CANDU reactors, and D2G reactors.
CANDU reactors are pressurized heavy-water reactors that use natural unenriched uranium oxide as fuel.
Even though nuclear energy is the reason the atomic bomb was created, nuclear reactor plants don’t posses that type of capability to malfunction and blow up like that.
www.personal.psu.edu /students/c/i/cin104/egee101/essay4.htm   (588 words)

  
 Nuclear Powered Ships of the World - Commercial and Military
The ship's propulsion system is based on a combination of nuclear power and steam turbine, with four nuclear reactors and two auxiliary boilers.
The reactors are used in tandem with an oil turbine and together generate 66 500 hp.
Originally designed as Project 1153 - a new nuclear powered full -deck aircraft carrier - construction was suspended in 1983 when 50% completed and put aside for 5 years when when it was decided the hull was too small to launch aircraft and the catapult system designed for the ship failed.
www.radiationworks.com /nuclearships.htm   (2421 words)

  
 Learn more about D2G reactor in the online encyclopedia.   (Site not responding. Last check: 2007-09-09)
Learn more about D2G reactor in the online encyclopedia.
Hint: Play with putting spaces before and after your words to see the different results you get.
Three main loops driven by three reactor coolant pumps supplied three steam generators with super-heated water, which, in turn, supplied saturated steam to the engine room.
www.onlineencyclopedia.org /d/d2/d2g_reactor.html   (278 words)

  
 Maple Tutorial - II
Initially the reactor contains pure A at a concentration of 1.00 mol/L. As time increases, A is steadily consumed in the first reaction.
B forms in the first reaction and its concentration initially increases, but it is also steadily consumed in the second reaction and so its concentration eventually starts to decrease and approaches zero at large times.
C forms in the second reaction, slowly at first since it cannot appear until some B has been formed, and eventually it is all that is left in the reactor.
www.ncsu.edu /effective_teaching/tutorials/maple2.htm   (3476 words)

  
 STOP CASSINI Newsletter #156 -- July 22nd, 1999
Readers who have been following our discussions about the U. Navy's Nuclear Reactor program and their uselessness and vulnerability, will be very interested to hear about the fascinating man I met over the phone recently and with whom I had a long discussion.
This Nuclear Reactor is the most widely used Nuclear Reactor in the Naval Fleet.
I should note that the nuclear reactors on board the subs and ships provide both propulsion and all the electrical power for the ship.
www.animatedsoftware.com /cassini/nltrs/nltr0156.htm   (1838 words)

  
 [No title]
The design was to carry the same reactor scheduled for the USN nuclear submarines, the Submarine Advanced Reactor (SAR).
The project came to a dead end one month later with the realization that the weight of the reactor and associated machinery would be too heavy, as it alone would equal the displacement of a World War Two destroyer.
She was powered by two D2G reactors, which developed 60,000 shp.
www.steelnavy.com /JAGBainbridge.htm   (3551 words)

  
 [No title]
26 In IN all DT light-water NN reactors NNS to TO date NN this DT water NN is VBZ also RB used VBN to TO transfer VB the DT heat NN energy NN from IN reactor NN to TO turbine VB in IN the DT electricity NN generation NN process NN.
26 The DT fraction NN of IN the DT reactor NN ' ' s POS fuel NN core NN replaced VBD during IN refueling NN is VBZ typically RB one-fourth JJ for IN a DT boiling-water NN reactor NN and CC one-third NN for IN a DT pressurized-water NN reactor NN.
21 The DT Shippingport NNP reactor NN -LRB- -LRB- in IN Pennsylvania NNP -RRB- -RRB- was VBD the DT first JJ commercial JJ nuclear JJ generator NN to TO become VB operational JJ in IN the DT United NNP States NNPS.
www.cs.pitt.edu /mpqa/demo/database/parse/wiki1-7.parseinput   (15838 words)

  
 K 2004 Wrap-Up: Additives - Problem-Solving Additives Tackle New and Old Challenges - 02/05
The company is working on a new grafting process that will allow production of HMW PP with high levels of maleation—something that reportedly could not be done with conventional reactive extrusion methods.
Crompton is developing an in-reactor grafting technique similar to its Interloy reactive alloying process.
Now in the advanced pilot stage, the process is expected to produce commercial product by the end of the year.
www.ptonline.com /articles/200502fa3.html   (2514 words)

  
 NucNews - September 30, 2000
That's the dumbest place on the planet to put a reactor, and we're sick of the folks we need to be the smartest letting us down, and then hiding it as if nothing had happened.
The white elephant known as Navy Reactor Program needs to be shut down, and your duty as a free citizen is to understand why what you did while in the nuclear navy was a mistake.
Let me be frank and say that just as important as the uranium down there are the bodies of many men who gave their life in service of this country and from now on I would hope that you can at least acknowledge both that fact and their service.
nucnews.net /nucnews/2000nn/0009nn/000930nn.htm   (20225 words)

  
 USS California (CGN 36)
In April 1990, CALIFORNIA entered the Puget Sound Naval Shipyard in Bremerton, Washington for a three-year refueling complex overhaul, including two new D2G high endurance reactor cores in her engineering plant with adequate fuel capacity to power the ship for more than 20 years of normal operations, and the New Treat Upgrade Combat Systems Suite.
Upon completion of the overhaul in January 1993, CALIFORNIA began a series of exercises and evaluations in preparation for deployment.
Having completed a short but intense maintenance period in the spring of 1997, CALIFORNIA conducted a series of training operations and evaluations including a live-fire missile exercise, and Operational Reactor Safeguards Examination, and a Final Evaluation Period.
navysite.de /cg/cgn36.htm   (1082 words)

  
 USS Virginia (CGN 38)
The aluminium from the superstructure was sold for scrap, about $0.16/lb.
Removal of the superstructure facilitates Reactor Compartment removal, which should occur sometime after 2000.
The submarine moored outboard VIRGINIA is the USS TRITON (SSN 586), which was the USN's only two reactor submarine, and the first sub to circumnavigate the globe submerged.
navysite.de /cg/cgn38.htm   (613 words)

  
 Charles R
Designed, developed, and implemented as technical lead the NRC Headquarters (Materials) steam generator eddy current inspection report and regulatory oversight support database for 76 pressurized water reactors (PWR), 1996-1997.
Project Technical Engineering Lead to develop the Format and Content Guide for the New Production Reactor Program Safety Analysis Report for both proposed reactor designs to meet life cycle configuration management, safety margin maintenance; reliability, availability, maintainability and inspectability (RAMI), 1990.
USS Enterprise CVN65, Reactor Mechanical Division Officer; Refueling and Overhaul Officer for two reactors; EOOW Qualifications on A2W and A3W (3 years)
www.technidigm.org /resumed.htm   (643 words)

  
 Villagers with Torches: Iran roundup....
The exercise began in late August and is expected to continue through most of September.
Iran has deployed Russian-origin SAM systems around strategic facilities, including the nuclear reactor at Bushehr.
The air force has acquired an estimated 700 SA-18 Igla-S shoulder-fired surface-to-air missile systems.
vwt.d2g.com:8081 /2006/09/iran_roundup.html   (1099 words)

  
 [No title]
Fully qualified nuclear pipefitter that included CD29 and steam generator cleaning.
Fully qualified A2W, D2G, S5W reactor plant worker.
Certified pure water, controlled pure water and demineralized water operator.
www.mtronline.net /mt/mtJob.aspx?ShowResume=100055   (671 words)

  
 Long Beach VFW Post 3937
Not only did she distinguish herself as AAWC and ASUWC for the NIMITZ battle group, but she earned COMSIXTHFLT recognition for her ASW activities against Soviet submarine assets with the award of the "Hook 'Em" Trophy.
Superior performance had become the hallmark for all MISSISSIPPI endeavors, and it came as no surprise when she broke her own US Navy record by scoring her fourth consecutive "Excellent" on the Operational Reactor Safeguards Exam.
MISSISSIPPI returned to Norfolk in May and on July 22, Captain Philip R. Olson relieved Captain Raynor A.K. Taylor as Commanding Officer.
www.vanwinkle.org /vfw/ussmsship.htm   (1402 words)

  
 neo-neocon: Journalism: fact-checking and full disclosure
In Bisharat's piece, he omits the details--and, as usual, the real story is in the details.
Yes, Bisharat does mention that the report asks that Israel perform "small, reversible steps towards disarmament." By this he no doubt is referring to the steps Ceren mentions, which involve mothballing fissile material and freezing a reactor, in exchange for a host of similar steps and obligations by other Arab and Moslem countries.
But by failing to explain precisely what those steps asked of Israel are, and by not emphasizing the quid pro quo aspects of them, he is misleading the reader.
neo-neocon.blogspot.com /2005/12/journalism-fact-checking-and-full.html   (5127 words)

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