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INVESTIGATION OF EVACUATED TUBE COLLECTORS
International Journal of Solar Energy, 1994The present paper investigates the performance of evacuated tube collectors. A dynamical model is implemented to determine the performance of four different evacuated tube collectors. Multiple regression analysis is used to fit measurements to the dynamical model to identify collector parameters.
A.A. GHONEIM +3 more
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Effectiveness of chest tube evacuation ofpneumothorax in neonates
The Journal of Pediatrics, 1981This is a retrospective review of the effectiveness of 149 chest tubes placed in attempts to evacuate 91 pneumothoraces among 57 infants. Forty-four percent of initial evacuation attempts were ineffective; 42% of total chest tubes throughout the clinical courses were ineffective.
R W, Allen, A L, Jung, P D, Lester
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Comparative Study of Different Tube Geometries of Evacuated Tube Solar Collector
Journal of Solar Energy Engineering, 2023Abstract This study investigates the thermal performance of an evacuated U-tube solar collector (ETSC) using different tube geometrical configurations. The effect of tube geometry on the overall collector efficiency is numerically analyzed and compared with experimental results.
Juri Sonowal +3 more
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The Microbiology of Evacuated Blood Collection Tubes
Annals of Internal Medicine, 1977A collaborative study involving 20 clinical laboratories representing diverse geographical regions was organized to examine the microbiology of evacuated blooc collection tubes. Overall, 14% of the 1433 tubes examined contained microorganisms representing a variety of bacteria and fungi.
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Effects of Tube Structure on the Aerodynamic Characteristics of Evacuated Tube Transport System
IEEE Transactions on Applied Superconductivity, 2021The tube structure is an important guarantee for the dynamic stability of the high temperature superconducting maglev-evacuated tube transport (HTS Maglev-ETT) system, it is necessary to conduct relevant research on it. Based on simulation calculations with the FLUENT software, this paper studied the influences of different tube section forms on the ...
Penghui Wang +6 more
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Study on Materials and Structure of the Tube Wall of Evacuated Tube Transportation
Advanced Materials Research, 2012Evacuated Tube Transportation (ETT) will be the fastest traffic mode on earth in the future, possible over 6000km/h, and low energy consumption, no air pollution, no noise and relatively safe. Different from pipelines for transporting oil, gas and water, the tube of ETT will bear the maglev vehicles running in it, and it should be with reliable ...
Yao Ping Zhang, Daryl Oster
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Numerical Simulation of Evacuated Tube Solar Water Heaters
Volume 6: Oil and Gas Applications; Concentrating Solar Power Plants; Steam Turbines; Wind Energy, 2012This paper evaluates the characteristics of water-in-glass evacuated tube solar water heaters including assessment of the circulation rate through single ended tubes. A numerical model of the fluid flow inside a single ended evacuated tube has been developed assuming no interaction between adjacent tubes in the collector array.
PINELLI, Michele +2 more
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Trace metal contamination of evacuated blood collection tubes
American Industrial Hygiene Association Journal, 1977A study was undertaken to investigate the magnitude of potential trace metal contamination contributed by various commercial evacuated blood tubes to blood samples under experimental conditions. None of the tubes tested contributed significant Cu contamination whereas the 1% nitric acid and human blood leaching data clearly indicate that Zn, Pb and Cd ...
S B, Nackowski +5 more
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Solar Energy Collection With Evacuated Tubes
Journal of Engineering for Power, 1965Engineering and economic considerations are given for nontracking solar energy collectors where the absorbing surface is insulated by an evacuated space. Each collector is a long glass tube, about two in. in dia, silvered in the lower portion. The selectively blackened conduit through which liquid flows is suspended within the evacuated tube, passing ...
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Sigmoid irrigation tube for the management of chronic evacuation disorders
Journal of Pediatric Surgery, 2002Antegrade colonic irrigation, in which the right colon is accessed via appendicostomy or cecostomy, now is an important adjunct in the management of children with chronic evacuation disorders. However, in most children, the major area of dysfunction is the left rather than the right colon.
Michael W L, Gauderer +2 more
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