G
SECTION G — PHYSICS
  
NUCLEONICS
 G21
NUCLEAR PHYSICS; NUCLEAR ENGINEERING
 G21D
NUCLEAR POWER PLANT (simulators G06G 7/52)
 G21D 1/00
Details of nuclear power plant (control G21D 3/00)
 G21D 1/02
·  Arrangements of auxiliary equipment
 G21D 1/04
·  Pumping arrangements (by means within the reactor pressure vessel G21C 15/24; electrodynamic pumps H02N 4/20)
 G21D 3/00
Control of nuclear power plant (control of nuclear reaction in general G21C 7/00)
 G21D 3/02
·  Manual control
 G21D 3/04
·  Safety arrangements (emergency protection of reactor G21C 9/00)
 G21D 3/06
·  ·  responsive to faults within the plant (in the reactor G21C 9/00)
 G21D 3/08
·  Regulation of any parameters in the plant
 G21D 3/10
·  ·  by a combination of a variable derived from neutron flux with other controlling variables, e.g. derived from temperature, cooling flow, pressure
 G21D 3/12
·  ·  by adjustment of the reactor in response only to changes in engine demand
 G21D 3/14
·  ·  ·  Varying flow of coolant
 G21D 3/16
·  ·  ·  Varying reactivity
 G21D 3/18
·  ·  by adjustment of plant external to the reactor only in response to change in reactivity
 G21D 5/00
Arrangements of reactor and engine in which reactor-produced heat is converted into mechanical energy
 G21D 5/02
·  Reactor and engine structurally combined, e.g. portable
 G21D 5/04
·  Reactor and engine not structurally combined
 G21D 5/06
·  ·  with engine working medium circulating through reactor core
 G21D 5/08
·  ·  with engine working medium heated in a heat exchanger by the reactor coolant
 G21D 5/10
·  ·  ·  Liquid working medium partially heated by reactor and vaporised by heat source external to the core, e.g. with oil heating
 G21D 5/12
·  ·  ·  Liquid working medium vaporised by reactor coolant
 G21D 5/14
·  ·  ·  ·  and also superheated by reactor coolant
 G21D 5/16
·  ·  ·  ·  superheated by separate heat source
 G21D 7/00
Arrangements for direct production of electric energy from fusion or fission reactions (obtaining electric energy from radioactive sources G21H 1/00)
 G21D 7/02
·  using magneto-hydrodynamic generators
 G21D 7/04
·  using thermoelectric elements (structural combination of fuel element with thermoelectric element G21C 3/40; thermoelectric elements per se H01V 1/00, H01V 3/00)
 G21D 9/00
Arrangements to provide heat for purposes other than conversion into power, e.g. for heating buildings