๐ Thermoacoustic Stirling Refrigerator
Evaluate thermoacoustic cryocoolers and Stirling refrigerators: acoustic cooling heat lift (Watts), acoustic work input, thermal penetration depth (delta_k), and COP using Swift model.
โก Fortran 90 Engine
Double Precision (IEEE 754)
โ ISO / ASME Validated
Thermodynamics
๐ Solver Telemetry
โ ACTIVE
๐๏ธ Views
20
โก Solves
15
๐พ Downloads
435
๐ฆ Fortran Code
11.4 KB
๐
Released
Jun 2026
โฑ๏ธ Latency
< 1 ms
๐ Acoustic Resonator Tube & Thermoacoustic Stack Heat Pumping
Real-time visual simulation: Standing acoustic wave oscillating gas parcels across parallel stack plates creating temperature gradient๐ Configuration & Presets
๐ Helium Refrigerator (20 bar)
๐ฐ๏ธ Spacecraft He-Xe Cryocooler (150K)
โ๏ธ Solar Air Cooler (10 bar)
๐งช Lab Argon Demo (8 bar)
Swift Thermoacoustic Formulation:
โข Thermal Penetration Depth: ฮดฮบ = โ(2 k / (ฯ cp ฯ)) [mm]
โข Optimal Stack Spacing: yโ โ 2 - 4 ฮดฮบ
โข Acoustic Power Work: Wฬโ โ Astack ยท ฮดฮบ ยท ฯ ยท pโยฒ / (ฯ aยฒ)
โข Coefficient of Performance: COP = Qฬc / Wฬโ
โข Thermal Penetration Depth: ฮดฮบ = โ(2 k / (ฯ cp ฯ)) [mm]
โข Optimal Stack Spacing: yโ โ 2 - 4 ฮดฮบ
โข Acoustic Power Work: Wฬโ โ Astack ยท ฮดฮบ ยท ฯ ยท pโยฒ / (ฯ aยฒ)
โข Coefficient of Performance: COP = Qฬc / Wฬโ
๐ Thermoacoustic Results
Configure inputs and click Compute to view results.
๐ Calculation Methodology & Thermoacoustic Standards
Thermoacoustic Heat Pumping Effect
Oscillating gas parcels experience cyclical compression, displacement, and thermal relaxation with the solid stack wall, pumping heat from the cold heat exchanger (CHX) toward the hot heat exchanger (HHX).
No Moving Parts & Noble Gas Operation
Eliminates pistons, valves, and synthetic fluorinated refrigerants. Uses inert helium or argon gas with near-infinite operational lifetimes for space missions and green cooling.
Key Engineering Assumptions
- Linear Rott acoustic standing-wave approximation ($D_r \le 10\%$).
- Short-stack approximation with parallel plate stack matrix.
- Applicable to electronics cooling, space cryogenics, and waste heat refrigeration.