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THE FEUTEX TOOLKIT

Phase Change Heating Budget

Combine preheating, latent heat and postheating for a single melting step.

Thermal workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaQ=m(csΔTpre+L+clΔTpost).
Sources and model references

Worked example

Inputs

Mass
1 kg
Solid specific heat
2000 J/(kg·K)
Liquid specific heat
4000 J/(kg·K)
Latent heat
300000 J/kg
Temperature rise before melting
10 K
Temperature rise after melting
20 K
Net delivered heating power
1000 W

Expected results

Required thermal energy
400000 J
Ideal heating duration
400 s

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Enter every input in the labeled units; use measured or independently specified properties.
  2. Check the stated model assumptions before calculating.
  3. Interpret the output as a model estimate and verify it independently for the intended application.

Try this example

{
  "mass": 1,
  "solidCp": 2000,
  "liquidCp": 4000,
  "latent": 300000,
  "before": 10,
  "after": 20,
  "power": 1000
}

Accuracy and scope

Single melting transition with constant properties and specified net heating power; no losses or temperature gradients. Educational engineering estimate only; not structural or safety certification, equipment selection, or operating recommendations.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.