Engineering English
Carnot Cycle
Mechanical Engineering · Last updated: July 30, 2026 · How this entry was written
Definition: An idealized thermodynamic cycle that provides the maximum possible efficiency for a heat engine operating between two thermal reservoirs. It consists of two isothermal processes and two adiabatic processes.
Example in context
“The Carnot cycle serves as a benchmark for real heat engine performance, since no engine can exceed its efficiency when operating between the same two temperature limits.”
“Carnot çevrimi, gerçek ısı motoru performansı için bir kıstas görevi görür, çünkü aynı iki sıcaklık sınırı arasında çalışan hiçbir motor onun verimliliğini aşamaz.”
Where engineers use it
The Carnot cycle is used as the theoretical maximum efficiency in thermodynamics education and system analysis. Engineers reference it to compare real cycles and identify irreversibilities in power plants and refrigerators.
Synonyms: Carnot engine cycle, reversible cycle
Practice: can you use “Carnot Cycle” at work?
You are evaluating a new power plant design. Use the Carnot cycle efficiency formula to determine if the proposed cycle is approaching the theoretical maximum.
Show a model answer
“The Carnot cycle defines the upper limit of efficiency for any heat engine.”
“Carnot Cycle” in 21 languages
| English | Carnot Cycle |
|---|---|
| Turkish | Carnot çevrimi |
| French | cycle de Carnot |
| German | Carnot-Kreisprozess |
| Spanish | ciclo de Carnot |
| Chinese | 卡诺循环 |
| Arabic | دورة كارنو |
| Portuguese | ciclo de Carnot |
| Russian | цикл Карно |
| Japanese | カルノーサイクル |
| Italian | ciclo di Carnot |
| Vietnamese | chu trình Carnot |
| Hindi | कार्नो चक्र |
| Thai | วัฏจักรการ์โนต์ |
| Indonesian | siklus Carnot |
| Korean | 카르노 사이클 |
| Bengali | কার্নো চক্র |
| Dutch | Carnotcyclus |
| Swedish | Carnots cykel |
| Finnish | Carnot'n sykli |
| Ukrainian | цикл Карно |
Frequently asked questions
What does Carnot Cycle mean in engineering?
An idealized thermodynamic cycle that provides the maximum possible efficiency for a heat engine operating between two thermal reservoirs. It consists of two isothermal processes and two adiabatic processes. In Mechanical Engineering, the term carries a usage-frequency rating of 10/10 in the Engineering English library.
How do you pronounce Carnot Cycle?
Carnot Cycle is pronounced /ˈkɑːrnoʊ ˈsaɪkəl/ (IPA). The Engineering English app plays audio for the term and checks your pronunciation with speech recognition.
How is Carnot Cycle used in a sentence?
Example from an engineering context: “The Carnot cycle serves as a benchmark for real heat engine performance, since no engine can exceed its efficiency when operating between the same two temperature limits.”
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