What is the efficiency of Ericsson cycle?
Applying intercooling, heat regeneration and sequential combustion significantly increases thermal efficiency of a turbine, in fact, the thermal efficiency of the ideal Ericsson cycle equals to the Carnot efficiency.
What are the four processes that make up the Ericsson cycle?
Ericsson cycle consists of four processes on a pressure- volume diagram, (1-2), rejection of heat constant pressure, (2-3), isothermal compression, (3-4), addition of heat at constant pressure and (4-1), isothermal expansion.
How is Stirling cycle different from Ericsson?
Stirling cycle refers to a type of thermodynamic cycle which has constant volume and constant temperature processes. This cycle resembles the Carnot cycle where the Ericsson cycle contains two constant volume processes instead of two isentropic processes in the Carnot cycle.
When was the Ericsson cycle invented?
1833
Comparison with the Brayton Cycle
| Cycle/Process | Compression | Expansion |
|---|---|---|
| Ericsson (First, 1833) | adiabatic | adiabatic |
| Ericsson (Second, 1853) | isothermal | isothermal |
| Brayton (Turbine) | adiabatic | adiabatic |
Which is the efficiency of the Ericsson cycle?
Since, Ericsson cycle is a regenerative cycle hence heat rejected in process 2-3 is used for heat addition in process 4-1. It means CP(T2-T3) gets cancelled by CP(T1-T4) hence, we can replace these values by zero in equation (1). Which is equal to Carnot Cycle efficiency.
How did the Ericsson cycle get its name?
The Ericsson Cycle is named after its Swedish inventor John Ericsson. Many heat engines based on various thermodynamic cycles were but by him. Ericsson was also responsible for the early use of the screw propellor for ship propulsion built in 1842.
Is the Ericsson engine an open or closed cycle?
Ericsson eventually abandoned the open cycle in favor of the traditional closed Stirling cycle. Ericsson’s engine can easily be modified to operate in a closed-cycle mode, using a second, lower-pressure, cooled container between the original exhaust and intake.
How is heat rejected in the Ericsson cycle?
We know that some heat is rejected by the air for doing work on the air. We know from the above, that heat supplied during the process 1-2 is equal to the heat rejected during the process 3-4 (because of T2-T1=T3-T4). 1.
