Concept — Ratio between useful energy and energy supplied to a machine.
Present in chapters
12
Linked atoms
36 atoms linked.
10 Irreversible transformations and energy balance
11 Entropy
- Problem — Entropy in an irreversible cycle
- Worked example — Maximum work from cooling coffee
- Cooled iron: maximum work
- The reversible cooling of coffee
- Carnot engine: ΔS of the universe
12 Cycles and heat engines
- What is a heat engine
- Worked example — simplified Carnot cycle
- The price of work
- Problem — Balances of a cycle
- Problem — Carnot with three reservoirs
- Problem — Carnot compared with other cycles
- Problem — Monatomic Carnot cycle (400-250 K)
- Problem — Proof of the Carnot efficiency
- Problem — Useful work for 1000 J absorbed
- Problem — Stirling engine
- Problem — Realistic petrol engine (Otto vs Carnot)
- Problem — Why engines run at high temperature
- Problem — Power of a coal-fired plant
- Problem — Four cycles in the T-S plane
- Problem — Ranking four Carnot engines
- Problem — Ranking four Carnot engines (2)
- Problem — Ranking three Carnot engines
- Problem — Efficiency from exchanged heats (800-600 J)
- Problem — Efficiency of the Brayton cycle
- Problem — Efficiency of the Diesel cycle
- Problem — Efficiency of the Otto cycle
- Problem — Carnot efficiency as T_f tends to zero
- Problem — Efficiency of a real engine (4000-3000 J)
- Problem — Carnot efficiency and work (500-300 K)
- Problem — Maximum Carnot efficiency (500-300 K)
- Problem — Minimum temperature of a power plant
- Problem — An engine with efficiency greater than 1
- Problem — An engine that is too efficient
- Problem — True or false on engines and refrigerators
- Problem — True or false on reversibility and cycles