HEAT TRANSFER & THERMAL DESIGN

Make the thermal
tradeoffs visible.

Model heat transfer in an editor that connects equations, property calls, and thermal correlations. Refine the calculation with AI assistance, compare designs, and inspect the tradeoffs.

COUNTERFLOW / DESIGN STUDY01
Counterflow heat exchangerHot water flows left to right from 150 to 104.3 degrees Celsius. Cold air flows right to left from 20 to 146.5 degrees Celsius. The illustrative 30 square metre model transfers 382 kilowatts.150 °C104.3 °C146.5 °C20 °CHOT WATER INHOT WATER OUTCOLD AIR OUTCOLD AIR IN
Heat duty382 kW

A = 30 m²
U = 0.5 kW/(m²·K)

Illustrative ε–NTU model. Steady flow, constant properties, liquid hot water.

01 / BUILD THE MODEL

Connect the physics to the design.

Describe the duty, operating conditions, and design constraints. Keep the engineering basis visible as the model takes shape.

Ask the agent to build the thermal model around your problem. Built-in heat-transfer and fluid-flow routines connect properties and correlations to the energy balance, pressure drop, and sizing calculation. You can inspect and edit every relationship.

Autocomplete helps insert a routine and its arguments. Function help shows an example and its correlation source beside the equations. Expected-unit suggestions and unit warnings help you check the calculation as you edit; range warnings identify where a correlation needs a closer look.

PipeFlow function help showing its inputs, outputs, example call, and correlation source
One PipeFlow call connects heat-transfer coefficients, pressure drop, Nusselt number, friction factor, and Reynolds number.View full size

02 / EXPLORE THE TRADEOFFS

How much area
is enough?

Right-click an area or flow-rate input and use Quick sweep to plot heat duty and outlet temperatures. Use Goal seek to find an input that meets a target, then review and apply the candidate. Min/Max adds bounded optimization when the question calls for a search.

Explore the heat-exchanger calculation
01

Set the question.

Choose a target outlet temperature or a heat duty to compare.

02

Explore the range.

Parametric tables keep the operating cases together. Linked plots update when you rerun the study.

03

Inspect the candidate.

Trace the result through the equations and check the operating assumptions.

03 / UNDERSTAND THE UNCERTAINTY

Know which measurement deserves your attention.

The inputs are estimates. See how that uncertainty reaches the result.

Assign absolute or relative uncertainties to measured inputs. Engineering Genius reports the uncertainty in each selected output and the contribution of each input.

IN THE HEAT-EXCHANGER EXAMPLECold-side mass flow contributes
60.2% of heat-duty uncertainty.

That tells you where better measurement could matter. It is a result for this example’s selected inputs and uncertainties.

The propagation method assumes independent inputs and small changes. It also runs across the rows of a parametric table.

Heat exchanger uncertainty analysis showing heat duty, cold outlet temperature, and contributions from each input
Read the output uncertainty alongside the contribution from each measured input.View full size

THE WORK BEYOND ONE EXAMPLE

A thermal library to build on.

Use the routines your problem needs, with documented inputs, correlation sources, and applicability warnings.

01

Flow & convection

Pipe, duct and annular flow; external flow; free convection; impinging jets.

PipeFlow · DuctFlow · AnnularFlow
02

Exchangers & fins

Heat-exchanger effectiveness, LMTD correction, and fin efficiency routines.

HX: 18 type strings · LMTD_CF
03

Conduction & radiation

Transient wall, cylinder and sphere solutions, shape factors, radiation view factors, and blackbody functions.

PlaneWall_T · Cylinder_T · F2D_* · F3D_*
04

Phase change

Boiling and condensation routines for models that need phase-change heat transfer.

Nucleate, film and flow boiling · film condensation

Coverage depends on the selected routine and its valid range. Compact-exchanger surface data and regenerator packing datasets are not included. Imported models may use different correlations.

Review compatibility

FROM A QUESTION TO A WORKING MODEL

Start your next thermal design.

Describe the problem, review the model, and explore the alternatives.

Start with your problemTry the interactive examples