Results 271 to 280 of about 99,114 (312)

Low-Flow Purging and Sampling Guidance

2003
The procedures in this guidance document are specific to Low-Flow Purging and Sampling (LFPS) of monitor wells in New Jersey. The purpose of Low-Flow Purging and Sampling (LFPS) is to collect groundwater samples from monitor wells that are representative of ambient groundwater conditions in the aquifer.
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Recirculation of Purged Flow in an Adiabatic Counterflow Rotary Dehumidifier

Journal of Heat Transfer, 1984
The average process stream outlet humidity ratio of an adiabatic counterflow dehumidifier can be lowered if a portion of the process outlet stream is purged from the bulk flow. The purged stream can be recirculated and introduced at the inlet of the regenerating period. In this paper, the performance of such a purged counterflow dehumidifier is studied.
J. J. Jurinak, J. W. Mitchell
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Effects of Cavity Purge Flow on Intermediate Turbine Duct Flowfield

Volume 2B: Turbomachinery, 2018
To increase the power output without adding additional stages, ultra-high bypass ratio engine, which has larger diameter low pressure turbine, attracts more and more attention because of its huge advantage. This tendency will lead to aggressive (high diffusion) intermediate turbine duct design.
Jun Liu, Qiang Du, Guang Liu, Pei Wang, Hongrui Liu, Qingzong Xu   +5 more
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Calculation of age and local purging flow rate in rooms

Building and Environment, 1987
Abstract The local purging flow rate and the local age in ventilated rooms are numerically investigated; both quantities are calculated in an isothermally ventilated two-dimensional room, the latter in two buoyantly ventilated three-dimensional rooms as well.
Lars Davidson, Erik Olsson
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Analysis of helium purge flow in a solid breeder blanket

Fusion Engineering and Design, 1989
A numerical analysis of the purge flow in sphere-pac solid breeder has been carried out using the modified Darcy equations. The results show that: (1) the tritium accumulation in the purge and permeation through the wall is not a concern, (2) pressure drop expressions for fully developed flow are applicable in evaluating the pressure drop in a ...
K. Fujimura, A.R. Raffray, M.A. Abdou
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Feed-forward control of purge flow in internal combustion engines

International Journal of Engine Research, 2015
Presented is a feed-forward controller that coordinates engine fueling with a purge event to reduce air–fuel ratio excursions. The controller employs a linear parameter-varying model to estimate the necessary changes in fuel pulse-width based on a hydrocarbon sensor located in the purge line. Synchronization between the purge fuel vapor arrival at the
Fatemeh Zamanian, Matthew A Franchek, Karolos M Grigoriadis, Imad Makki   +3 more
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An Intraventricular Axial Flow Blood Pump Integrated With a Bearing Purge System

ASAIO Journal, 1995
The future development of implantable axial flow blood pumps must address two major issues: mechanically induced hemolysis and shaft seal reliability. The recent revisions to our miniature intraventricular axial flow left ventricular assist device (LVAD) were aimed particularly at addressing these concerns.
Kenji Yamazaki, Robert Kormos, Toshio Mori, Mitsuo Umezu, Marina Kameneva, James Antaki, Eisuke Outa, Philip Litwak, John Kerrigan, John Tomczak, Jason Tatka, Hiroaki Konishi, Mahender Macha, Akihiko Kawai, Harvey Borovetz, Bartley Griffith, Hitoshi Koyanagi   +16 more
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Novel Cardiac Assist Valve With a Purge Flow in the Valve Sinus

ASAIO Journal, 1998
Clinical applications of cardiac assist systems continue to have a severe problem, that of thromboembolic complications. The problem originates mainly at the valves, which are usually made of a antithrombogenic material, such as bovine pericardium. However, the valve housing is made of a less suitable material, and wherever the blood flow is stagnant ...
K, Affeld, L, Goubergrits, O, Holberndt
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Spacecraft thermal blanket cleaning - Vacuum baking or gaseous flow purging

30th Aerospace Sciences Meeting and Exhibit, 1992
The mass losses and the outgassing rates per unit area of three thermal blankets consisting of various combinations of Mylar and Kapton, with interposed Dacron nets, were measured with a microbalance using two methods. The blankets at 25 deg C were either outgassed in vacuum for 20 hours, or were purged with a dry nitrogen flow of 3 cu. ft. per hour at
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The effect of purge gas flow rate on thermogravimetric experiments

Thermochimica Acta, 1983
This paper describes research carried out to elucidate the reasons for the unusual behaviour of lead azide, Pb(N,),, in thermogravimetric TG and differential scanning calorimetry DSC experiments reported by other workers [ 11. They noted that in a DSC experiment Pb(N,), behaved in the expected manner (i.e.
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