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ALWAYS AVAILABLE ON YOUR MOBILE

THE WHOLE
WORLD OF
THERMODYNAMICS

My Engineering Tools – professional calculators for thermodynamics, turbomachinery, heat pumps and water turbines.

Tools that make engineers' daily work more easier.

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15+
Years Experience
Designed for
Turbomachinery & Cycles
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THE ENGINEER BEHIND THE TOOLS

A project engineer who decided to make thermodynamics easier for everyone.

With more than 15 years of experience as a project engineer for turbomachinery and cycles, thermodynamics is my daily business. My passion for programming led me to create practical tools that help you calculate faster, avoid costly mistakes, and focus on what really matters: efficient solutions.

Every app is built with the same philosophy: simple, reliable, and tailored to real-world engineering needs. Available on your mobile phone or tablet, always with you.

Discover the tools I built
Christian Peter Kaiser
Dipl.-Ing.(FH) Energiesystemtechnik
I believe that great engineering tools should feel like an extension of your own hands. Calculations should be fast, intuitive and always within your reach. That's why every tool was built with real users in mind.
HELPFUL TOOLS FOR TURBINES,
CYCLES AND PROCESS ENGINEERING
MY COLLECTION OF TOOLS

Tools designed for real engineers

From basic laws to full cycle simulations. Each one developed over years of practical experience.

Stodola's Law of the Ellipse
FREE
Stodola’s Law of the Ellipse
At the beginning of the 20th century, Aurel Stodola (1859 – 1942) discovered the relationship between inlet pressure, outlet pressure and mass flow in steam turbines for various operating conditions. Today, this law is fundamental for calculation and control of turbines.
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Cordier Diagram
FREE
Cordier Diagram
The Swiss Army knife for your first shot in turbomachinery design. With this app you can determine the type (axial, diagonal, radial) of your compressor, pump, fan, turbine or mill. Calculate the diameter based on volume flow, specific enthalpy and speed or use the backwards calculation to calculate volume flow or speed at a given geometry.
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STuC Steam Turbine Calculator
FREE / PRO
STuC – Steam Turbine Calculator
Fast expansion calculations for saturated and superheated steam using IAPWS tables. Inlet, outlet, mass flow, power, efficiency — all in one intuitive app.
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AIRExpander
FREE
AIRExpander
Turbo expander calculations for dry air expansion. Same interface as STuC — quick, accurate and always available.
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Heat Pump Evaluator
LIVE
Heat Pump Evaluator
Lorenz-COP & efficiency calculation for heat pump systems
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WSCycle
COMING SOON
WSCycle – Water Steam Cycle Calculator
Complete cycle simulation: Boiler, turbine, condenser, pump, generator. All components recalculate simultaneously.
WattAFlow
PRO
WattAFlow
WattAFlow is a professional tool for calculating the power output of water turbines and determining the optimal turbine type.
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Alberich Enigma M4
EXPERIMENTAL
Alberich – Enigma M4 Simulator
Online simulator for the famous German cipher machine Enigma M4. Four-wheel rotor, plugboard, daily keys — just like the real thing. But with a modern interface for everyday use.
Encrypt your messages
The most apps also available on Google Play Store.
APPS • SOFTWARE • EXPERIENCE • PASSION

Why these tools exist

Thermodynamics is not just theory — it’s daily work. As a practicing project engineer I have seen how a single miscalculated parameter can lead to expensive mistakes or missed deadlines. That is why I built these tools: to save time, reduce errors and give engineers back their focus.

Every calculation is tested against real reference data. The interfaces are intuitive even for beginners. And they are completely offline-capable where needed.

01
Fast & Accurate
IAPWS/REFPROP compliant calculations. No more tedious spreadsheets.
02
Mobile First
Works great on phones and tablets. Always in your pocket.
03
Reliable
No subscription, no ads, no tracking. Pure engineering tools.
EXPERIMENTAL TOOL

Alberich: the encryption

Alberich is not a thermodynamics tool, but a modern encryption and decryption tool. It faithfully simulates the famous German Enigma M4 cipher machine in real time – rotors, plugboard, daily keys, everything accurately reproduced – while offering a clean, user-friendly interface designed for everyday use with Messenger, email and SMS. Perfect for history enthusiasts, cryptography fans, and anyone who wants real privacy with a bit of excitement and nerd factor in their daily communication.

Alberich Enigma Simulator
Encrypt your messages App on Google Play
LET'S TALK ENGINEERING

Get in touch

Whether you need help with a specific calculation, feedback on an app, or want to discuss custom tools — I'm always happy to hear from fellow engineers.

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