Engineer Toolbox

This add-in provides engineering functions for Excel, including structural analysis, fluids, heat transfer, thermodynamics, and related calculations.

Features

Unlimited FREE use

Works in Excel for web and desktop

All processing is done on-device, not in the cloud

Python source code available for review and customization

Function Areas

• Chemical engineering and process safety: Chemical properties, combustion and fuel calculations, exposure limits, flash points, flammability limits, and safety reference helpers.
• Control systems: System modeling, state-space and transfer-function analysis, controller design, interconnections, matrix computations, model reduction, and fuzzy-logic utilities.
• Fluids: Dimensionless numbers, friction factors, drag, fittings, flow meters, control valves, compressible flow, filters, and atmospheric calculations.
• Heat transfer: Conduction, convection, boiling, condensation, radiation, heat exchangers, insulation, tube banks, packed beds, air coolers, and related correlations.
• Photovoltaics and solar analysis: Solar position, irradiance models, module models, solar geometry, performance analysis, and data-quality checks.
• Signal processing: Filtering, spectral analysis, wavelets, resampling, smoothing, transforms, and related time-series tools.
• Structural analysis: Beam, frame, truss, plate, and finite-element workflows for reactions, displacements, forces, and deflections.
• Thermodynamics: Fluid properties, phase equilibrium, psychrometrics, saturation properties, and mixture workflows.

More details are available in the Engineer Toolbox add-in documentation.

Important Notice

Functions are provided as-is for academic and non-commercial use with no warranty whatsoever as per the terms of use. Users are encouraged to validate each function's linked Python source code and the source code, documentation, assumptions, and limitations of the underlying Python packages being wrapped.