𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Test facility for helium I two phase flow study

✍ Scribed by Ph. Bredy; D. Neuvéglise; M.X. François; C. Meuris; R. Duthil

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
901 KB
Volume
34
Category
Article
ISSN
0011-2275

No coin nor oath required. For personal study only.

✦ Synopsis

Two experimental apparatus have been built in our laboratory to study He I Two Phase Flow at atmospheric pressure. The first apparatus has been designed to create horizontal flows in a 0.01 m diameter tube A 0.1 m long visualization has been realised to study flow patterns. Two types of heat transfer coefficient measurement cells have been developed (copper or stainless steel). Some typical results are shown. The second apparatus (under test) is designed to realise vertical flows in 0.01 to 0.014 m diameter tube. For flow patterns study, visualization is possible up to 0.9 m on a upward flow.

📜 SIMILAR VOLUMES

Stratified two-phase superfluid helium f
Stratified two-phase superfluid helium flow: I
✍ B. Rousset; L. Grimaud; A. Gauthier 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 532 KB

Experiments were conducted with saturated superfluid helium. Two-phase co-current stratified flow was circulated through a 40 mm inner diameter, 86 m long heated tube, with a slope of 1.4%. Mass flow rates and temperatures ranged between 1.5 and 6.3 g s-l, and 1.8 and 2 K, respectively. A full descr

Critical heat flux for two-phase flow of
Critical heat flux for two-phase flow of helium I
✍ H. Ogata; S. Sato 📂 Article 📅 1973 🏛 Elsevier Science 🌐 English ⚖ 146 KB

This paper describes a study performed to obtain the critical heat flux data on liquM helium I in a vertical tube under forced convection. The pressure of the fluid ranges from 1. 1 to 2.0 atm , and the quality up to 1. The results show that the critical heat flux decreases with increasing pressure

An experimental and numerical study of H
An experimental and numerical study of He II two-phase flow in the TESLA test facility
✍ Yu Xiang; J.G. Weisend II; M. Smith; B. Petersen; D. Sellmann; H. Lierl; S.W. Va 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 546 KB

We report on measurements of the liquid level and temperature corresponding to different local heat loads at several sections of the He II two-phase flow channel in the TESLA (Tera-eV Energy Superconducting Linear Accelerator) Test Facility phase I (TTF1) during its operation. The measurements show

Optical method for measurement of qualit
Optical method for measurement of quality and flow patterns in helium two-phase flow
✍ T Haruyama 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 353 KB

Information about the quality and flow patterns of helium two-phase flow has been obtained by using optical fibres and photo-sensitive devices. Light emitted from a LED is scattered by bubbles and turbulence in liquid helium. As bubbles and turbulence in liquid are related to the quality, x, the mea

Study of jet pumps for circulating a hel
Study of jet pumps for circulating a helium two-phase mixture
✍ N.N. Agapov; A.I. Ageev; B.A. Beluskin; A.G. Zeldovich 📂 Article 📅 1980 🏛 Elsevier Science 🌐 English ⚖ 328 KB

The operation of a jet pump using a helium, two-phase mixture has been studied. It is shown that for the two-phase region, the relations obtained from the momentum equation are valid only up to the onset of limiting modes, ie until the stream velocity achieves the velocity of sound in any section of