PPolySim OS
For K-12 Students · Heat Exchanger (LMTD)

Heat Exchanger (LMTD) for a solar-panel mount

Built for k-12 students learning it in middle or high school. Watch the idea come alive with plain-language steps and everyday examples — perfect for projects and homework. Simulate a solar-panel mount live below — adjust the inputs and watch it respond, right in your browser.

Heat Exchanger (LMTD)Live

Controls

Presets

Heat exchanger duty Q = U·A·ΔT_lm, where the log-mean temperature difference (LMTD) accounts for how the temperature gap changes along the length. Counter-flow keeps the gap larger, transferring more heat. Educational tool.

▶ Run in Python

Data Inspector

LMTD33.8 K
Heat duty Q16.92 kW
Arrangementcounter-flow

Governing equation

Reading this result: Counter-flow holds the temperature gap open along the whole length, giving an LMTD near 34 K — that is why it out-duties parallel-flow for the same inlet temperatures.

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

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Frequently asked questions

Is this good for k-12 students?
Yes — this version of "Heat Exchanger (LMTD) for a solar-panel mount" is framed for k-12 students learning it in middle or high school. Watch the idea come alive with plain-language steps and everyday examples — perfect for projects and homework.
Do I need to install anything?
No. It runs in any modern browser, free, with no account required.