PRESSSURIZED HEAVY WATER REACTORS CANDU

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PRESSSURIZED HEAVY WATER REACTORS CANDU

• Prof. Dr. Mehmet Tombakoglu
• Hacettepe Üniversitesi
• Nükleer Enerji Mühendisligi Bölümü

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What is Pressurized Heavy Water Reactor What is
CANDU ?

• CANada Deuterium Uranium - the name gives the
  design started as the Canadian contribution to
  the War effort to produce plutonium using
  natural uranium and heavy water
• the first reactor to go critical outside the
  U.S. was ZEEP in 1945

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ZEEP - Canadas First Reactor

• Ilk ticari nükleer reaktör 1950 yilinda çalismaya
  basliyor.
• .
• 31 Ülkede 441 Nükleer Güç Santrali (369122GW(e))
• Baz yük güçte çalisan nu reaktörler dünya
  elektrik üretiminin yüzde 16-17 sini karsilamakta
• 284 Arastirma reaktörü 56 ülke tarafindan
  kullanilmakta ve yaklasik 220 reaktör de uçak
  gemileri ve denizaltilarda kullanilmakta.
• 27 Nükleer Santral Kurulmakta

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Pressurized Heavy Water Reactor CANDU
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Pressurized Heavy Water Reactor CANDU
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Pressurized Heavy Water Reactor CANDU
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Pressurized Heavy Water Reactor CANDU
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Pressurized Heavy Water Reactor CANDU
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Pressurized Heavy Water Reactor CANDU
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Pressurized Heavy Water Reactor CANDU
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Pressurized Heavy Water Reactor CANDU Heat
Transport System
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Pressurized Heavy Water Reactor CANDU
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Pressurized Heavy Water Reactor CANDU-Moderator
D2O
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Pressurized Heavy Water Reactor CANDU
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Pressurized Heavy Water Reactor CANDU
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Pressurized Heavy Water Reactor CANDU
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Pressurized Heavy Water Reactor CANDU
Auxiliary Systems CANDU has systems not found in
other types automated refuelling fuel
handling system annulus gas system
(leak-before-break) shield cooling system
heavy water vapour and liquid recovery and
systems that are found in other types primary
pressure inventory control shutdown cooling
system shutdown systems, Emergency Core
Cooling, containment, emergency power etc.
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Pressurized Heavy Water Reactor CANDU
Systems CANDU Does Not Need Some systems are
not needed in CANDU or are much simpler no
boron control system in the coolant no boron
addition to ECC water no criticality concerns
outside the reactor for new or used fuel
simpler core, reactivity devices
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Thanks