Miniature 10–150 mW Linde-Hampson cooler with glass-tube heat exchanger operating with nitrogen
✍ Scribed by H.J Holland; J.F Burger; N Boersma; H.J.M ter Brake; H Rogalla
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 219 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0011-2275
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✦ Synopsis
Two demonstrator versions of a small Linde-Hampson cooler with glass tube heat exchanger are presented. The fabrication of these coolers are described and experimental results are presented and discussed. One cooler with a length of 270 mm and an outer diameter of 0.67 mm has a cooling power of 60 mW at 88 K with a mass flow of 7.3 × 10 -6 kg/s (0.35 ln/min 1 ) nitrogen gas. The lowest temperature measured is 82 K at a mass flow of 4.2 × 10 -6 kg/s. The other shorter cooler has a length of 105 mm and the same outer diameter. It could also reach 82 K with a flow of about 2 × 10 -6 kg/s. In both cases nitrogen gas was supplied at a pressure of 10 MPa.