How do I simulate a flywheel store?

Open this page and use the live Battery Thermal Management 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 flywheel store from your own measurements.

Use case · powered by Battery Thermal Management

Battery Thermal Management for a flywheel store

Simulate a flywheel store live in your browser. This runs the real Battery Thermal Management 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

Battery Storage

open full solver →

Battery Energy StorageLive

capacity, efficiency & backup

Controls

Presets

Capacity (kWh)

Round-trip efficiency (%)

Depth of discharge (%)

Daily load from battery (kWh)

A battery's rated capacity is not all usable: depth-of-discharge limits protect its life, and round-trip efficiency means some energy is lost charging and discharging. What actually reaches your home is capacity × depth-of-discharge × round-trip efficiency. Together with cycle life, these set backup duration and the cost per stored kilowatt-hour.

▶ Run in Python

Data Inspector

Usable capacity12.2 kWh

Delivered / cycle10.9 kWh

Backup time26.2 hr

Lifetime throughput66 MWh

Governing equation

E_{del} = C \cdot DoD \cdot η_{r t} = 13.5 \times 0.90 \times 0.90 = 10.9 kWh

Reading this result: Usable energy is capacity × depth-of-discharge × round-trip efficiency, so only 10.9 of 13.5 kWh (81%) reaches your home each cycle — the discharge limit removes more here than efficiency does.

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

↓

Thermal Resistance

open full solver →

Composite Wall Heat TransferLive

R-value & U-value

Controls

Presets

Drywall (mm)

Insulation (mm)

Brick (mm)

Inside temp (°C)

Outside temp (°C)

Heat flows through a wall like current through resistors in series. Each layer's thermal resistance is its thickness over its conductivity; adding them gives the total R-value, and the heat flux is the temperature difference divided by it. Insulation, with very low conductivity, dominates the R-value — the steep temperature drop shows where it does its work.

▶ Run in Python

Data Inspector

Total R-value2.71 m²K/W

U-value0.37 W/m²K

Heat flux9.6 W/m²

Governing equation

R = \sum \frac{L _{i}}{k _{i} A} = 2.71 \frac{m ^{2} K}{W}, Q = \frac{Δ T}{R} = 9.6 \frac{W}{m ^{2}}

Reading this result: The insulation layer carries the most thermal resistance, so the temperature falls most steeply across it. A total R-value of 2.71 m²K/W lets 9.6 W/m² flow for this 26°C difference.

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

or unlock everything with Pro →

About this simulation

The full Battery Thermal Management tool models a flywheel store 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 Battery Thermal Management

Battery Thermal Management for a solar farm Battery Thermal Management for a wind turbine Battery Thermal Management for a home battery Battery Thermal Management for an EV charger Battery Thermal Management for a power grid Battery Thermal Management for a heat pump Battery Thermal Management for a gas turbine Battery Thermal Management for a hydro dam

Other ways to simulate a flywheel store

Solar PV System for a flywheel store Wind Turbine Power for a flywheel store Hydroelectric Power for a flywheel store Heat Pump COP for a flywheel store EV Range & Efficiency for a flywheel store Battery Storage for a flywheel store

Frequently asked questions

How do I simulate a flywheel store?: Open this page and use the live Battery Thermal Management 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 flywheel store from your own measurements.