Results 241 to 250 of about 1,062,238 (285)

Nucleate boiling site activation by vapor injection

AIChE Journal, 1985
Confirmation experimentale de l'hypothese selon laquelle l'addition de microbulles de vapeur a un systeme en ebullition augmente la concentration des sites de nucleation sur une surface de ...
M. D. Witzke, J. E. Schroeder, J. E. Sgheiza, J. E. Myers   +3 more
openaire   +1 more source

Hyphenation of flow injection/sequential injection with chemical hydride/vapor generation atomic fluorescence spectrometry

Talanta, 2007
The dominant role played by flow injection/sequential injection (FI/SI, including lab-on-valve, LOV) in automatic on-line sample pretreatments coupling to various detection techniques is amply demonstrated by the large number of publications it has given rise to.
Ming-Li, Chen, Ai-Mei, Zou, Yong-Liang, Yu, Rong-Huan, He   +3 more
openaire   +2 more sources

An investigation of the Briggs' Vapor Injection Apparatus

2021
The investigators do not preclude the possibility that there could be designed and built a water injection device that would operate under the conditions which were imposed on the Briggs' Vapor Jet for the purpose of this investigation. If, however, such a device be built, it is felt that it must be subject to controls of many kinds based on all the ...
openaire   +1 more source

Injection of vapor into a porous medium saturated with gas and paraffin

Proceedings of the Mavlyutov Institute of Mechanics, 2008
The problem of injecting steam into a porous medium saturated with gas is considered. It is believed that the skeleton of a porous medium consists of two components, one of which has a melting point lower than the temperature of the injected vapor. Therefore, this component will undergo a phase transition with additional heat consumption.
F.I. Shagieva, V.Sh. Shagapov
openaire   +1 more source

Performance comparison of R410A and R32 in vapor injection cycles

International Journal of Refrigeration, 2013
As global warming has raised more critical concerns in recent years, refrigerants with high global warming potentials (GWP) are facing the challenges of being phased out. R410A, with a GWP of 2088, has been widely used in residential air-conditioner and heat pump systems. A potential substitute for R410A is R32, which has a GWP of 675.
Xing Xu, Yunho Hwang, Reinhard Radermacher   +2 more
openaire   +1 more source

Performance analysis of the water-injected centrifugal vapor compressor

Energy, 2020
Abstract In industrial production, mechanical vapor recompression (MVR) technology is becoming more widely used. The performance of MVR will be further enhanced, if it can be combined with the wet compression technology. However, the water-injected vapor compression is different from the wet air compression.
Haoyu Yin, Hong Wu, Yulong Li, Jin Quan
openaire   +1 more source

Total injection of water vapor into the Venus atmosphere

Icarus, 1985
Abstract The atomic hydrogen mixing ratio at the homopause and the deuterium fractionation factor equal 0.5 ppm and 2.2%, respectively. The function which defines hydrogen amounts in the lower thermosphere relative to the lower atmospheric water vapor mixing ratio has been calculated for the sulfuric acid trap. We consider the effects of the enhanced
openaire   +1 more source

Model simplification of scroll compressor with vapor refrigerant injection

International Journal of Green Energy, 2016
ABSTRACTRefrigerant vapor injection in scroll compressor can improve the heat pump system performance on cold regions. A suitable model is necessary to system simulation. Based on the simulation results of an accurately dynamic model introduced in this paper, a new lumped parameter model is put forward.
Fei Qin, Shuangquan Shao, Changqing Tian, Hongxing Yang   +3 more
openaire   +1 more source

Condensation/Collapse of Vapor Bubble Injected to Subcooled Pool

ASME/JSME 2011 8th Thermal Engineering Joint Conference, 2011
We focus on condensation and collapse processes of vapor bubble(s) in a subcooled pool. We generate the vapor in the vapor generator and inject it/them to form vapor bubble(s) at a designated temperature into the liquid at a designated degree of subcooling.
Ichiro Ueno, Ryota Hosoya, Chungpyo Hong
openaire   +1 more source

Steam Chugging Analysis in Single-Vent Vapor Injection

Proceeding of International Heat Transfer Conference 7, 1982
A complete cycle of the periodic steam chugging phenomenon is analyed. Steam velocity and pressure variations in the vent are described by one-dimensional conservation equations. This is coupled either to the water slug model when water is in the vent, or, the infinite pool spherical bubble model at the vent exit during bubble growth.
C. K. B. Lee, C. K. Chan
openaire   +1 more source