20 K stirling cycle cooler
A cost effective, two-stage split Stirling Cooler, providing 120mW of heat lift at 19 K. A two-compressor system minimises cyclic variations of pressure to a single displacer mechanism. The compressors are arranged in a back-to-back pair for vibration cancellation.
Features / technical details
| Parameter | Cooler Data |
| Type | Two-Stage Split Stirling with Momentum Balancer |
| Nominal performance | 120 mW at 19 K (Zero load point at < 15 K) |
| Nominal power input | 105 W max at 20OC rejection temperature |
| Mass | Cooler: 11.6kg Electronics: 6 kg |
| Design life | > 10 yr + |
| Dimensions | Cooler, Displacer: 400mm x 200mm diameter max. Compressor: 238mm x 120mm diameter max. each Electronics: 290mm x 205mm x 105mm (L x W x H) |
| Bearing type | Flexure springs |
| Off-state thermal resistance | 1445K/W to 150K middle stage |
| Induced vibration (max in x, y, z axes) | Compressors < 0.2 N Displacer < 0.05 N |
| Thermal Performance (Adjusted to 20 deg C) | ||||
| Cold Tip Temperature (K) | Cooling Capacity (W) | Input Power (W) | ||
| TMU | Electronics | Total | ||
| 19 | 0.12 | 105 max | 50 max | 105 max |
| 27.5 | 0.4 | 105 max | 50 max | 105 max |
Categories
Applications
Deep-space science
Surveillance
Pre-cooler for multi-stage coolers (eg sub -K)
Reference customers
ESA : FIRST/PLANCK.
