Search Ctrl K
Home / Tools
THE FEUTEX TOOLKIT

Adiabatic Two-Stream Mixing

Estimate mixed temperature and mass flow for compatible liquid streams.

Thermal workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaΣ(mdot cp T)in=Σ(mdot cp)out Tout.
Sources and model references

Worked example

Inputs

Stream 1 mass flow
1 kg/s
Stream 1 specific heat
4180 J/(kg·K)
Stream 1 temperature
80 °C
Stream 2 mass flow
2 kg/s
Stream 2 specific heat
4180 J/(kg·K)
Stream 2 temperature
20 °C

Expected results

Mixed temperature
40 °C
Combined mass flow
3 kg/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

{
  "m1": 1,
  "cp1": 4180,
  "t1": 80,
  "m2": 2,
  "cp2": 4180,
  "t2": 20
}

Accuracy and scope

No heat loss, reaction, phase change or heat of mixing; constant heat capacities on a common reference basis. 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.