A pound is a pound. Or isit?THE COMBUSTION OF ONE POUND OFCOAL PRODUCES ONE KILOWATTHOUR OF ELECTRICAL ENERGY.IN COMPARISON, THE FISSION OF ONEPOUND OF URANIUM 235 PRODUCES 3MILLION KILOWATT HOURS OFELECTRICAL ENERGY.
NUCLEARAdvantages: Relatively cheap to operate require relatively little fuel No pollutionDisadvantages: Expensive to build Waste Security
Fuel Cells• 7 Trucks, each carrying 6 cases of 2-12 foot high fuel cells, can fuel 1000MW reactor for 1.5 years. (84 fuel cells)• To operate a coal plant of the same output and same timeframe would require 1 train of 89-100 ton coal cars EVERY DAY! This would produce 350,000 tons of ash and 4 million tons of CO & CO2.
A SUBSTANCE USED TO SLOW NEUTRONS FROM THEHIGH SPEEDS AT WHICH THEY ARE RELEASED IN FISSIONTO LOWER, MORE EFFICIENT SPEEDS WHICH INCREASETHE PROBABILITY OF CAUSING FISSION.
FISSION REGULATING EFFECTS OF WATER HOT WATER COLD WATER H H H H O O O H O H H H H H H O O H O O H H H H H N H O HN O O O H H H H H H O O H H O H H O H O H H O H H O H H N H H O H H O O O H H N H H HPROBABILITY OF NEUTRON INTERACTION GREATER IN COLD WATER THAN IN HOT WATER
Fun Radiation Facts!• The average person is exposed to 300 mrem/yr from natural sources and accepted risks (medical exams, flying)• Working in US nuclear power plants will typically yield an exposure of <100 mrem/yr (significantly less in US Navy reactors)• For comparison, a radiologist receives approximately 500 mrem/yr
Fun Radiation Facts!• A person would get 1 mrem of exposure from: – Three days of living in Atlanta – Two days of living in Denver• The loss of life expectancy from 1 mrem is about 1.2 minutes. Compare that to: – One cigarette reduces life expectancy by 7 minutes
Consequences of Radiation Exposure (if entire dose is received at once)• These are in REM! (1000 millirem) REM Effect – 0-25 No observable effect – 25-100 Slight blood changes – 100-200 Significant temporary reduction in blood platelets and white blood cells – 200-500 Severe blood damage, nausea, hair loss, hemorrhage, death in many cases – >600 Death in less than two months for over 80% of people
BENEFITS Entry level bonus: up to $15,000 cash Advanced promotion to E-3 at sign onAdvancement to E-4 within 6-9 months ~90 American Council on Education (ACE)recommended college credits Re-enlistment bonus: up to $100,000 and firsttime advancement to E-5 Experience, leadership training, cross-training,secret clearance, specialized training Officer selection rates ~75%
NUCLEAR AIRCRAFT CARRIER OVER 1300 FEET LONG 2-8 NUCLEAR REACTORS4000-7000 PEOPLE ONBOARD
NUCLEAR FAST ATTACK SUBMARINE OVER 350 FEET LONGONE NUCLEAR REACTOR 135-150 PEOPLE
SSBN •Survivable •Exact SSBN location known only to the crew •Two-Crew Concept • Blue and Gold crews • Totally separate commands • Alternating patrol cycle 68% Operational Availability ONE NUCLEAR REACTOR 150 – 175 PEOPLE ONBOARDCARRIES UP TO 24 TRIDENT C4 OR D5 ICBM’s
•ex-USS DANIEL WEBSTER •ex-USS SAM RAYBURN (MTS 626) (MTS 635)
• Two Land-based Prototypes in NY• Modified Advanced Reactor Facility (MARF)• S8G/Advanced Fleet Reactor (Trident SSBN)