The construction and operation of a flow loop is described in which a 0.51 s-1 centrifugal pump circulates supercritical helium through a 1 m long, 18 mm id heated test section instrumented with 18 carbon resistance thermometers. Based on the heat transfer measurements obtained (published in detail
A reciprocating liquid helium pump used for forced flow of supercritical helium
β Scribed by G. Krafft; G. Zahn
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- English
- Weight
- 293 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0011-2275
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
A basic diagram of the refrigeration system, in which liquid hefium is circulated by means of a jet pump, is described. The equations have been derived to design jet devices which operate with liquid helium. In the experimental setup with a jet pump the flow rate of liquid was 5 to 10 times larger
A centrifugal pump used for c~rculatmg hqutd hehum through a large superconducting magnet was tested The performance of the pump was measured during a magnet coohng test The pump operated well wtth atyptcal capacity of 400 dm 3 h -~ (Ap = 0 3 kg cm-2) at 20000 rpm An analys~s of the test results ~s
A classical venturi tube has been tested with two phase helium I. The discharge coefficient has been measured and it has been shown, that one can use a single value == 0.98. The influence of vapour due to pressure drop in the throat is discussed.
In order to obtain a low noise environment for optimum performance of SQUID sensors, it is essential to minimize the magnetic signal of the materials used in the SQUID cold electronics and the structures surrounding these sensors. We have, therefore, screened samples for potential use in the fabrica