27 june 2017.A Carnot heat engine[2] is an engine that operates on the reversible Carnot cycle.

27 june 2017.
https://en.wikipedia.org/wiki/Carnot_heat_engine#Carnot.27s_theorem
A Carnot heat engine^[2] is an engine that operates on the reversible Carnot cycle. The basic model for this engine was developed by Nicolas Léonard Sadi Carnot in 1824. The Carnot engine model was graphically expanded upon by Benoît Paul Émile Clapeyron in 1834 and mathematically elaborated upon by Rudolf Clausius in 1857 from which the concept of entropy emerged.
Every thermodynamic system exists in a particular state. A thermodynamic cycle occurs when a system is taken through a series of different states, and finally returned to its initial state. In the process of going through this cycle, the system may perform work on its surroundings, thereby acting as a heat engine.
A heat engine acts by transferring energy from a warm region to a cool region of space and, in the process, converting some of that energy to mechanical work. The cycle may also be reversed. The system may be worked upon by an external force, and in the process, it can transfer thermal energy from a cooler system to a warmer one, thereby acting as a refrigerator or heat pump rather than a heat engine.

Contents

• 1 Carnot's diagram
• 2 Modern diagram
• 3 Carnot cycle
• 4 Carnot's theorem
• 5 Efficiency of real heat engines
• 6 Notes
• 7 References
  
  
  
  Learning Basics of thermodynamics.
  27 june 2017,
  Carnot engine diagram (modern) - where an amount of heat QH flows from a high temperature TH furnace through the fluid of the "working body" (working substance) and the remaining heat QC flows into the cold sink TC, thus forcing the working substance to do mechanical work W on the surroundings, via cycles of contractions and expansions.
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