Open heat-exchanger engineering, right in your browser.
Heat Transfer Suite is a free, open-source collection of screening-level calculators for thermal equipment. No installation, no licence — just open the page and run a rating, a design or an optimization.
From classic shell-and-tube to plate, air-cooled, spiral, condenser, reboiler, double-pipe, plate-fin, fired heater and heat-exchanger networks — every module covers rating, design and optimization.
Switch between rating, design and optimization modes; the optimizer scans integer geometry and returns a Pareto-front of feasible designs.
One-factor sweeps, Monte-Carlo, tornado and spider charts quantify how input scatter propagates to the result.
An independent re-derivation of the same canonical correlation reports the deviation from reference values — an educational cross-check, not a licensed-code validation.
Equipment cost (Turton/Ulrich) with CEPCI escalation and an optimal fouling-cleaning interval.
Linnhoff problem-table PINCH analysis with ΔTmin trade-off and auto shell-count suggestion.
SI/US toggle, save and load projects as JSON, built-in examples, and export to text, Excel and PDF — in 12 languages.
Everything runs locally in your browser; your data never leaves the page. The methods are open screening correlations (Kern, Bell–Delaware-style, plate/air/furnace/spiral) and are not licensed HTRI/HTFS/ASPEN methods.
Open the calculator