Exam Question
(a) What do you understand by the term 'Carnot cycle' and 'Reverse Carnot cycle'? (5)
(b) State limitations with 'Reverse Carnot cycle' (5)
(c) Explain briefly, 'absorption type' refrigeration cycle with examples using line diagram (6)
Class 4 (4th Engineer)
MEKG
📅 Mar 2023
Reference Answer
### (a) Carnot Cycle and Reverse Carnot Cycle
**(i) Carnot Cycle**
The Carnot cycle is a theoretical, ideal, and reversible thermodynamic cycle proposed by Nicolas Léonard Sadi Carnot. It represents the most efficient possible cycle for converting a given amount of thermal energy into work, or conversely, for creating a temperature difference by applying work. Its efficiency sets an upper limit for all other heat engines.
The cycle consists of four distinct, reversible processes performed by a working substance:
**(i) Carnot Cycle**
The Carnot cycle is a theoretical, ideal, and reversible thermodynamic cycle proposed by Nicolas Léonard Sadi Carnot. It represents the most efficient possible cycle for converting a given amount of thermal energy into work, or conversely, for creating a temperature difference by applying work. Its efficiency sets an upper limit for all other heat engines.
The cycle consists of four distinct, reversible processes performed by a working substance:
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