%0 Journal Article %T Sadi Carnot and the Thermodynamics of James Watt %A Jovan Mitrovic %J Advances in Historical Studies %P 47-62 %@ 2327-0446 %D 2023 %I Scientific Research Publishing %R 10.4236/ahs.2023.122004 %X A comparison of CarnotĄ¯s thermodynamic statements, published in his Reflections, with the WattĄ¯s thermodynamic ideas shows that Carnot used WattĄ¯s thermodynamics, but he did not understand it properly. For instance, he did not realize the WattĄ¯s idea that production of work in the steam engine requires a consumption of heat. Also, instead of the pressure difference boiler-to-condenser, Carnot used the temperature difference to be the direct quantity for the transport of caloric in the engine. Many of CarnotĄ¯s statements are shown to express WattĄ¯s ideas in other wording. Watt realized the reversible heat transfer in experiment several decades prior to Reflections. In addition, CarnotĄ¯s analogy of steam engine and water fall, published 1824, has been invalidated, long before its birth, by the WattĄ¯s formulation of the first law in 1774. Despite these facts, James Watt is banished from the history of thermodynamics. %K Thermodynamics %K James Watt %K Sadi Carnot %K Rudolf Clausius %K Analogy Steam Engine-Waterfall %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=124758