Mekanism Fission Reactor | ATM10

The Fission Reactor is a multiblock structure, in the Mekanism mod, used to generate large amounts of power by burning nuclear fuel. It produces heat which converts water into steam for power generation, and generates nuclear waste as a by-product.

 

Requirements

 

Reactor Components

• Fission Reactor Casing
• Fission Reactor Port
• Fission Fuel Assembly
• Control Rod Assembly
• Reactor Glass (optional)

 

Supporting Systems

 

Coolant Supply

A constant water source is required. Options include:

• Sink (recommended)
• Mechanical Pipes (the longer the pipes, the more water is available to pump into the multiblock)
• Eternal Water Block (EvilCraft)

Fuel Production

Fission Fuel must be produced through a chemical chain:

Uranium → Uranium Hexafluoride → Fission Fuel

Required machines:

• Chemical Oxidizer
• Chemical Infuser
• Isotopic Centrifuge

Waste Handling

• Pressurized Tubes
• Radioactive Waste Barrel (temporary storage)

 

Structure

 

Construction Steps

 

1. Build the Outer Casing

To begin, construct a 5×5×5 hollow cube using Fission Reactor Casing. 5x5x5 is the smallest a Fission Reactor can be.

2. Install Internal Components

Inside the structure:

• Place Fission Fuel Assemblies vertically
• Place Control Rod Assemblies directly on top of each fuel assembly

3. Add Ports

Install the following ports on the reactor casing:

• Fuel Input Port
• Coolant Input Port
• Steam Output Port
• Waste Output Port

Additional ports can be added as needed.

4. Optional: Reactor Glass

Replace casing blocks with Reactor Glass for visibility into the reactor interior. The corners of the reactor must be casing blocks to allow for the multiblock to take shape.

 

Setup

 

Coolant InputConnections

• Connect watereach supplyport on the reactor casing to theits corresponding system using Mechanical Pipes or Pressurized Tubes as appropriate.

  Recommended:

  Port	Connection
  Coolant Input Port	Connect to your water supply. Ensure constant flow at all times.
  Fuel Input Port	Pipe Fission Fuel into the Fuel Input Port   Steam Output Extract steamin from theyour fuel production chain.
  Steam Output Port	Extract connectsteam and route it to an Industrial Turbine for power generation.
  Waste Output Port	Extract nuclear waste viacontinuously. Waste Output Port Store in Radioactive Waste Barrels or process later further.

   

  Activation

  1. Enable the reactorreactor.
  2. Confirm water is flowingflowing.
  3. Confirm waste output is connectedconnected.

   

  Power Increase

  Gradually increase the burn rate,rate. increasingIncreasing it too fast can cause the reactor to explode.

   

  Recommended Operating Range

  • Temperature: below 800 K
  • Burn Rate: 0.5–2.0 mB/t (early setup)

   

  Power Generation

   

  Industrial Turbine (Recommended)

  • Converts steam into energy efficiently
  • Required for optimal performance

  Without a turbine, most generated energy is wasted.

   

  Safety

   

  Meltdown Causes

  • Insufficient coolant
  • Excessive burn rate
  • Waste backup
  • Blocked output systems

   

  Safety Guidelines

  • Maintain constant water supply
  • Ensure waste is continuously removed
  • Increase burn rate gradually
  • Monitor reactor temperature

   

  Scaling

   

  Increase Output

  • Increase burn rate slowly
  • Add more fuel assemblies
  • Expand reactor size (e.g. 7×7×7 or larger)

   

  Common Mistakes

   

  • Activating reactor at high burn rate
  • Failing to supply enough coolant
  • Ignoring waste management
  • Not using a turbine

   

  Recommended Starter Setup

   

  • 5×5×5 reactor
  • 4–6 fuel assemblies
  • Burn rate ~1.0 mB/t
  • Connected industrial turbine
  • Infinite water source