Heat engine, Heat pump and carnot cycle

Question 1

Efficiency

Answer 1

Output/ input

Question 2

Heat engine

Answer 2

w= Qh - Qc
Efficiency = W/ Qh
= Qh-Qc/ Wh
= 1 - Qc/Qh

Question 3

Heat pump

Answer 3

CoP= Qh/ w
w= Qh -Qc
Cop= Qh/ Qh -Qc

Question 4

Refrigerator

Answer 4

CoP= Qc/ w
w= Qh-Qc
Cop= Qc/Qh-Qc

Question 5

What does Carnot cycle look like

Answer 5

• Isothermal (exp)
• Adiapatic (exp)
• Isothermal (comp)
  Adiapatic (comp)

Question 6

Carnot Cycle

Answer 6

Qc/Qh =Tc/Th
efficiency = 1- Tc/Th

Question 7

Carnot Heat engine

Answer 7

efficiency= 1- Qc/Qh
= 1- Tc/Th

Question 8

Carnot Hest pump (heating)

Answer 8

CoP= Qc/ Qh-Qc
= Tc/Th-Tc

Question 9

Carnot Heat pump (cooling)

Answer 9

CoP= Qh/ Qh- Qc
= Th/ Th-Tc