โป๏ธ Stirling & Ericsson Cycles Calculator
Analyze ideal Stirling (isochoric regeneration) and Ericsson (isobaric regeneration) cycles. Compare thermal efficiency with and without perfect regenerator against Carnot. Outputs P-V and T-s diagrams.
๐ Configuration
Key Equations:
Stirling: 1โ2 iso-T(TL), 2โ3 iso-V, 3โ4 iso-T(TH), 4โ1 iso-V
Ericsson: 1โ2 iso-T(TL), 2โ3 iso-P, 3โ4 iso-T(TH), 4โ1 iso-P
With perfect regen: ฮท = ฮทCarnot = 1โTL/TH
Stirling: 1โ2 iso-T(TL), 2โ3 iso-V, 3โ4 iso-T(TH), 4โ1 iso-V
Ericsson: 1โ2 iso-T(TL), 2โ3 iso-P, 3โ4 iso-T(TH), 4โ1 iso-P
With perfect regen: ฮท = ฮทCarnot = 1โTL/TH
๐ Results & Diagrams
Configure inputs and click Analyze to view results.
๐ Methodology
Stirling Cycle
Two isothermal processes (compression at TL, expansion at TH) connected by two isochoric (constant-volume) processes. A regenerator stores heat from 4โ1 and returns it during 2โ3, enabling Carnot efficiency.
Ericsson Cycle
Similar to Stirling but uses isobaric (constant-pressure) regeneration instead of isochoric. The regenerator exchanges heat between 4โ1 and 2โ3 at constant pressure.
Assumptions
- Ideal gas working fluid.
- Perfect regenerator achieves Carnot efficiency.
- Without regenerator, efficiency depends on ฮณ and compression ratio.
- No mechanical friction or dead volume.