Denis Papin
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The Newcomen Engine
[The Newcomen engine] belongs to that small but select group of inventions that have decisively change the course of history.” – D. S. L. Cardwell [1] The path to Sadi Carnot led through Denis Papin’s pioneering work with the piston (click here) and into Thomas Newcomen’s (1664-1729) invention of the first commercial steam engine in… Continue reading
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Thermo (Q) and dynamics (W) meet for the first time inside the piston
Thermodynamics arguably began with the piston, since it was the invention of the piston that first enabled the transformation of heat into work. In 1850 Rudolf Clausius quantified this transformation in his 1st Law of Thermo (heat)-Dynamics (work) when he conducted an energy balance around the piston: ∆U = Q - W The change in internal energy (U) of… Continue reading
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The Road to Entropy – Sadi Carnot’s use of analogy to create his “flawed” masterpiece (video)
The commercialization of the high-pressure steam engines by the Cornish Engineers of Britain inspired Sadi Carnot, a French military engineer, to analyze these engines and seek the theories to guide their improvement. If you’re interested in doing a deep dive into Sadi Carnot’s work, here are two excellent references. I go into much more depth… Continue reading
Block by Block – The Historical and Theoretical Foundations of Thermodynamics. “Hanlon has written a masterpiece.” – Mike Pauken, Senior Engineer, NASA’s Jet Propulsion Laboratory (JPL) and author of Thermodynamics for Dummies
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About Me
Hi! I’m Bob Hanlon. After earning my Sc.D. in chemical engineering from the Massachusetts Institute of Technology and enjoying a long career in both industry and academia, I’ve returned to school, my own self-guided school, seeking to better understand the world of thermodynamics. Please join me on my journey.
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