โ™ป๏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.

๐Ÿ“ Configuration

โš™๏ธ Cycle Type
๐ŸŒก๏ธ Temperatures
๐Ÿ“ Volumes
๐Ÿงช Working Fluid
Key Equations:

Stirling: 1โ†’2 iso-T(TL), 2โ†’3 iso-V, 3โ†’4 iso-T(TH), 4โ†’1 iso-V
Ericsson: 1โ†’2 iso-T(TL), 2โ†’3 iso-P, 3โ†’4 iso-T(TH), 4โ†’1 iso-P
With perfect regen: ฮท = ฮทCarnot = 1โˆ’TL/TH

๐Ÿ“Š Results & Diagrams

Configure inputs and click Analyze to view results.

๐Ÿ“˜ Methodology

Stirling Cycle

Two isothermal processes (compression at TL, expansion at TH) connected by two isochoric (constant-volume) processes. A regenerator stores heat from 4โ†’1 and returns it during 2โ†’3, enabling Carnot efficiency.

Ericsson Cycle

Similar to Stirling but uses isobaric (constant-pressure) regeneration instead of isochoric. The regenerator exchanges heat between 4โ†’1 and 2โ†’3 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.
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