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NUCLEAR BATTERYA PORTABLE ENERGY SOURCE

PRESENTED BY ASHOK DAS

3RD YEARELECTRICAL ENGINEERING DEPARTMENT

SEMINAR PRESENTATION ON

WHY NUCLEAR BATTERY

• Chemical batteries require frequent replacements and are bulky.

• Need for compact, reliable, light weight and long life power supplies.

RADIOISOTOPES AND RADIATIONS

• Radioisotopes are artificially produced, unstable atoms of a chemical element, which have a different number of neutrons in the nucleus, but the same number of protons and the same chemical properties.

WHAT IS NUCLEAR BATTERY

• Atomic battery, also known as nuclear battery is a device which uses emissions of radioactive isotope to generate electricity. Unlike nuclear reactors, they do not use a chain reaction.

METHOD OF CONVERTING RADIOACTIVE DECAY ENERGY INTO ELECTRICITY

• The main feature is their ability to produce electricity during years or even dozens of years depending on the half life of the radioisotope.

RADIOISOTOPE GENERATOR

RADIOACTIVE DECAY FROM

RADIOISOTOPEELECTRICITY

ENERGY PRODUCTION MECHANISM

•BETAVOLTAICS

•DIRECT CHARGE GENERATORS

DIRECT CONVERSION NUCLEAR BATTERIES WITH BETAVOLTAICS

•Figure 1:

•Figure 2:

DIRECT CHARGE NUCLEAR BATTERIES WITH DIRECT CHARGE

GENERATORS

CONTACT POTENTIAL DIFFERENCE BATTERY

INDIRECT CONVERSION BATTERIES

APPLICATIONS1. SPACE APPLICATIONS2. MEDICAL APPLICATIONS3. MOBILE DEVICES4. AUTOMOBILES5. UNDER SEA WATER PROBRS AND

SEA SENSORS6. FOR POWERING MEMS DEVICES

ADVANTAGES AND DRAWBACKS OF

NUCLEAR BATTERIES

REFERENCES1. http://spectrum.ieee.org/energy/renewables/

the-daintiest-dynamos

2. http://en.wikipedia.org/wiki/Atomic_battery

3. http://www.time.com/time/magazine/article/0,9171,2050039,00.html

4. http://www.seminarsonly.com/electrical%20&%20electronics/Nuclear%20Batteries.php

THANK YOU