1
Q
What is the second law of thermodynamics
A
Energy cannot be transferred from hot body to cold body without an input of work.
2
Q
2 types of Engine
A
Internal and combustion engine
3
Q
2 types of heat engine
A
Otto and diesel
4
Q
Other term for otto
A
Gasoline
5
Q
Example of external combustion engine
A
Steam Engine
6
Q
What is kelvin-planck statement
A
“no heat engine can be completely convert”
7
Q
Formula for efficiency
A
E= W/Qh x 100 E= (1- Tc/Th) x 100
8
Q
What is COP
A
Coefficient of Performance
9
Q
Formula of COP
A
Qh/ Qh-Qc
W/Qh-Qc
Basic Mechanical Engineering
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