Thermal Reservoirs Flashcards
What is a Thermal Reservoir
A Body that can absorb finite amounts of heat without undergoing a change in temperature
Explain the Clausius Statement about Heat Transfer Between Reservoirs
Heat can Only Flow from a Higher Temperature Thermal Reservoir to a Lower Temperature Thermal Reservoir Spontaneously
Work is Done to the Surroundings
Heat can Only Flow from a Lower Temperature Thermal Reservoir to a Higher Temperature Thermal Reservoir with External Work
Work is done to the System
What is a Heat Engine
A Device that converts Heat into Mechanical Work
Heat is Transferred from High Temp Reservoir to Low Temp Reservoir ,, Performing Work in the Process
Explain the Kelvin-Planck Statement about Heat Engines
Impossible to have a thermal Efficiency of 100 Percent
Energy must be transfered to Low Temperature Reservoir to complete the cycle.
Thermal efficiency of a irreversible power cycle is less then a reversible power cycle when each operate between the same two thermal reservoirs
Reversible Power Cycles between the same wo thermal reservoirs have the same thermal Efficiency
Derive the Thermal Efficiency of a Heat Engine Formula
Explain the Kelvin-Planck Statement about Refrigerators and Heat Pumps
Refrigeration Effect Requires a Net Work Input
Coefficient of performance must be finite
Coefficient of performance of a irreversible Refrigeration cycle is less then a reversible Refrigeration cycle when each operate between the same two thermal reservoirs
Reversible Power Cycles between the same wo thermal reservoirs have the same Coefficient of performance
Derive the Coefficient of Performance of a Refrigerator Formula
Derive the Coefficient of Performance of a Heat Pump Formula
Derive the Coefficient of Performance of a Refrigerator Formula
Derive the Coefficient of Performance of a Heat Pump Formula
Derive the Thermal Efficiency of a Heat Engine Formula
In terms of Temperature of the Reservoirs
Draw a labelled diagram of the carnot cycle in a closed system and a power plant
