How do I simulate a coolant loop?

Open this page and use the live Reactor Kinetics tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.

Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.

Can I use my own numbers?

Absolutely — every input is adjustable, and with data import you can drive a coolant loop from your own measurements.

Use case · powered by Reactor Kinetics

Reactor Kinetics for a coolant loop

Simulate a coolant loop live in your browser. This runs the real Reactor Kinetics solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

For:Students Researchers Educators Engineers Hobbyists & Makers K-12 Students First Responders

Reactor Point KineticsLive

power, reactivity & period

Controls

Presets

Reactivity ρ

Speed1×

A small step in reactivity does not blow the power up instantly, because a fraction of neutrons are released with a delay. Those delayed neutrons slow the response to a controllable timescale — the reactor period. But push reactivity past the delayed fraction β and it goes prompt-critical, growing on the neutron lifetime — millisecond-fast and uncontrollable.

▶ Run in Python

Data Inspector

Reactivity0.15 $

Regimedelayed (controllable)

Power1.00e+0

Governing equation

\frac{d n}{d t} = \frac{ρ - β}{Λ} n + i \sum λ_{i} C_{i} (ρ = 0.0010, β = 0.0065)

Reading this result: Positive but below β — delayed neutrons stretch the response onto a stable, controllable reactor period.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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About this simulation

The full Reactor Kinetics tool models a coolant loop with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.

More you can do with Reactor Kinetics

Reactor Kinetics for a reactor core Reactor Kinetics for a radiation shield Reactor Kinetics for a fuel rod Reactor Kinetics for a Geiger counter Reactor Kinetics for a nuclear decay Reactor Kinetics for a PET scan Reactor Kinetics for an X-ray dose Reactor Kinetics for a fusion plasma

Other ways to simulate a coolant loop

Nuclear Binding Energy for a coolant loop Fission Chain Reaction for a coolant loop Fusion (Lawson) for a coolant loop Radiometric Dating for a coolant loop Radiation Shielding for a coolant loop Radiation Dose for a coolant loop

Frequently asked questions

How do I simulate a coolant loop?: Open this page and use the live Reactor Kinetics tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
Is it free?: Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
Can I use my own numbers?: Absolutely — every input is adjustable, and with data import you can drive a coolant loop from your own measurements.