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Fast Breeder Reactor

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Fast Breeder Reactor

Construction
1500
+
200
+
200
Workers 200
ElectricityNone
Maintenance 43.0 / 60 
Footprint45x21*
Required ResearchFast Breeder Reactor
Boost by UnityNot Available
DesignationPower Production 
VariantsNuclear Reactor
Nuclear Reactor II

The Fast Breeder Reactor is a machine that generates large amounts of Steam (Super) from Water and Core Fuel for use in generators. The reactor can also enrich Blanket Fuel to Blanket Fuel (Enriched), which is used in the production of Core Fuel and other nuclear products.

Because of this, it is only necessary to produce enough initial Core Fuel from a Chemical plant II to begin the loop, as long as you are recycling the spent core fuel and enriched blanket fuel. Once this cycle is operating successfully, you will only need to make sure that you continue adding a small amount of Blanket Fuel, which can be easily made from a relatively small amount of Yellowcake with no Depleted Uranium byproduct.

Power is generated by passing the output Steam (Super) through Super-pressure Turbines, High-pressure Turbines, and Low-pressure Turbines with their output shaft connected to Power Generators, typically Tier 2 variants of each. A majority of the Water can subsequently be recovered for reuse using a Cooling Tower (Large). Generated Steam (Super) can be also used to desalinate Seawater and produce Hydrogen.

Heat Exchange and Overheat

See Nuclear Reactor

Automatic Regulation

See Nuclear Reactor II

Core and Blanket Fuel

Core Fuel

Core Fuel is the primary fuel used by the Fast Breeder Reactor and is required for it to operate. An equal amount of File:CoreFuelSpent.png Core Fuel (Spent) is produced as the result, which can be reprocessed in a Nuclear Reprocessing Plant.

Core Fuel in a running reactor loop typically does not need to be externally provided. For initiating a loop however a minimum of 40 should be provided so the reactor can begin to work, for which both Plutonium and File:EnrichedUranium20Perc.png Enriched Uranium (20%) can be used.

Reprocessing of File:CoreFuelSpent.png Spent Core Fuel returns 75% of the amount as Core Fuel alongside a Fission Product by-product.

Blanket Fuel

Blanket Fuel is an optional input fuel for the reactor. While it does not contribute to power generation, it can be enriched into Blanket Fuel (Enriched), which can in turn be used to produce Core Fuel to sustain the reaction or to produce other nuclear products.

Blanket Fuel is typically produced from Yellowcake, though Depleted Uranium, Spent Fuel and Spent MOX as by-products of earlier nuclear power production chains can also be used to produce it.

The enrichment of Blanket Fuel is optional. The reactor's Steam production and Core Fuel consumption are not affected if Blanket Fuel is not provided or Blanket Fuel (Enriched) is not removed.

Reprocessing of Blanket Fuel (Enriched) returns 75% of the amount as Blanket Fuel and the rest as a secondary product of choice.

Product Core Fuel File:EnrichedUranium20Perc.png Enriched Uranium (20%) Plutonium
not returned as 1 2 4
Product count 1 1 1

Enrichment options

The Fast Breeder Reactor has three modes of enrichment:

0: Enriches no Blanket Fuel and halves Core Fuel consumption. Not recommended unless you have a lot of Plutonium to spend.

1: Enriches as much Blanket Fuel as Core Fuel consumed. This mode creates a zero-sum loop where only Blanket Fuel needs to be provided and Fission Product to be removed, and is ideal for power generation.

3: Enriches trice as much Blanket Fuel as Core Fuel spent and cuts Steam production by 75%. Used to produce Plutonium and File:EnrichedUranium20Perc.png Enriched Uranium (20%) for space-related parts.

Below are the recipes for all three operating modes at 1x and 4x reactor speed.

96
96
2
2
60 
60 
96
96
2
2
96
96
4
4
4
4
60 
60 
96
96
4
4
4
4
24
24
4
4
12
12
60 
60 
24
24
4
4
12
12
384
384
8
8
60 
60 
384
384
8
8
384
384
16
16
16
16
60 
60 
384
384
16
16
16
16
96
96
16
16
48
48
60 
60 
96
96
16
16
48
48

Recipes

Below are all the recipes which this building is capable of producing. Note that some of them may be locked behind Research and not immediately available in your game.

24
24
4
4
12
12
60 
60 
24
24
4
4
12
12
48
48
8
8
24
24
60 
60 
48
48
8
8
24
24
72
72
12
12
36
36
60 
60 
72
72
12
12
36
36
96
96
16
16
48
48
60 
60 
96
96
16
16
48
48
96
96
2
2
60 
60 
96
96
2
2
96
96
4
4
4
4
60 
60 
96
96
4
4
4
4
192
192
4
4
60 
60 
192
192
4
4
192
192
8
8
8
8
60 
60 
192
192
8
8
8
8
288
288
6
6
60 
60 
288
288
6
6
288
288
12
12
12
12
60 
60 
288
288
12
12
12
12
384
384
8
8
60 
60 
384
384
8
8
384
384
16
16
16
16
60 
60 
384
384
16
16
16
16