scholarly journals Hybrid Plasma-Catalytic Reforming of Ethanol into Synthesis Gas: Experiment and Modeling

2019 ◽  
Vol 6 (3) ◽  
pp. 270-273
Author(s):  
O. A. Nedybaliuk ◽  
I. Fedirchyk ◽  
V. Chernyak ◽  
T. Tereshchenko ◽  
O. Tsymbaliuk ◽  
...  
Keyword(s):  
Experimental Studies ◽  
Addition Method ◽  
Water Addition ◽  
Catalytic Reforming ◽  
Ethanol Reforming ◽  
Combined Application ◽  
Kinetics Modelling ◽  
Influence Of Water ◽  
Hybrid Plasma ◽  
Gliding Discharge

Understanding of the plasma-assisted reforming of hydrocarbons requires a combined application of the experimental studies of reforming systems and the kinetics modeling of reforming processes. Experiments were conducted on a system with a wide-aperture rotating gliding discharge with atmospheric air used as a plasma gas. Reforming parameters essential for the kinetics modelling of the reforming process were obtained. The influence of water addition method on the product composition of plasma-catalytic ethanol reforming was investigated.

scholarly journals REFORMING OF ETHANOL IN PLASMA-CATALYTIC SYSTEM WITH DC AND AC ROTATING GLIDING DISCHARGE

2021 ◽  
pp. 117-121
Author(s):  
O.A. Nedybaliuk ◽  
T.A. Tereshchenko ◽  
I.I. Fedirchyk ◽  
P.V. Tyshchuk ◽  
V.P. Demchina
Keyword(s):  
Synthesis Gas ◽  
Emission Spectra ◽  
Optical Emission ◽  
Reaction Chamber ◽  
Catalytic Reforming ◽  
Instantaneous Power ◽  
Wide Aperture ◽  
Ethanol Reforming ◽  
Gliding Discharge ◽  
Optical Emission Spectra

The article presents the results of the investigation of the reforming of ethanol into synthesis gas using a plasmacatalytic system with either AC or DC wide-aperture rotating gliding discharge. Current and voltage oscillograms of the wide-aperture rotating gliding discharge were measured. The time-dependence of the instantaneous power of the discharge in the air was built. The photographs of the discharge in the airflow and discharge during the ethanol reforming were compared. The optical emission spectra of the plasmas of the torches of AC and DC wide-aperture rotating gliding discharges were studied. The rotational and vibrational temperatures of the plasma torch in the reaction chamber were determined. The results of the gas-chromatography of the synthesis gas produced during the plasm-catalytic reforming of ethanol using either AC or DC rotating gliding discharge are presented.

The Influence of Water Addition on Solutions of FeCIi in Isopropanol

1983 ◽  
Vol 38 (6) ◽  
pp. 701-702 ◽  
Author(s):  
F. Rodriguez ◽  
M. Moreno ◽  
J. C. Fayet ◽  
F. Varret
Keyword(s):  
Optical Absorption ◽  
Water Addition ◽  
Influence Of Water ◽  
Water Hydrolysis

By means of Optical Absorption, EPR and Mössbauer techniques it is demonstrated that the addition of small amounts of water to solutions of FeCl3 in isopropanol enhances the concentration of [FeCl4]- complexes, this addition leading also to the formation of ferric dimers involving two Fe3+-OH- bridges. An explanation of this fact based on the disproportionation of FeCl3 and water hydrolysis is reported

Water Addition in Diesel Engine Intake for NOx Reduction: Comparison of Modeling and Experiments

2003 ◽  
Author(s):  
Bhaskar Tamma ◽  
Juan Carlos Alvarez ◽  
Aaron J. Simon
Keyword(s):  
Diesel Engine ◽  
Fuel Efficiency ◽  
Nox Reduction ◽  
Engine Performance ◽  
Thermodynamic Cycle ◽  
Nox Emission ◽  
Water Addition ◽  
Predictive Tool ◽  
Fuel Flow ◽  
Influence Of Water

Reduction in emissions, especially NOx has been the main study of various engine researchers in the light of stringent emission norms. To reduce the time and cost involved in testing these technologies, engine thermodynamic cycle predictive tools are used. The present work uses one such predictive tool (GT Power from Gamma Technologies) for predicting the influence of water addition in a turbocharged 6-cylinder diesel engine intake on engine performance and NOx emissions. The experiments for comparison with modeling included the introduction of liquid water in the engine intake stream, between the compressor and intercooler ranging from 0 to 100% of fuel flow rate. NOx emission reduced linearly with water addition with reduction of 63% with less than 1% penalty on fuel efficiency at 100% water addition. The GT Power model predicted the performance within 5% of experimental data and NOx emission within 10% of the experiments.

The influence of water temperature and pH on the survival of Fasciola hepatica miracidia

Parasitology ◽  
1984 ◽  
Vol 88 (1) ◽  
pp. 97-104 ◽  
Author(s):  
G. Smith ◽  
B. T. Grenfell
Keyword(s):  
Maximum Likelihood Method ◽  
Fasciola Hepatica ◽  
Good Description ◽  
Survival Function ◽  
Experimental Studies ◽  
Likelihood Method ◽  
Confidence Limits ◽  
Mean Values ◽  
Influence Of Water ◽  
The Mean

SUMMARYExperimental studies on the survival of Fasciola hepatica miracidia show no evidence that miracidial mortality varies with the pH of the medium, at least in the range 6·0–8·0. On the other hand, miracidial mortality is shown to vary with both the temperature of the medium and the age of the larvae. The mean expected life-span of the miracidium decreases from about 35 h at 6°C to about 6° h at 25° C. The Gompertz survival function provides a good description of the miracidial survivorship curves over the range of temperatures used, and we describe, a maximum likelihood method of estimating the mean values of the parameters of this function, together with their approximate 95% confidence limits.

scholarly journals The Influence of Water and Mineral Oil On Volumetric Losses in a Hydraulic Motor

2017 ◽  
Vol 24 (s1) ◽  
pp. 213-223 ◽  
Author(s):  
Pawel Śliwiński
Keyword(s):  
Mathematical Model ◽  
Rotational Speed ◽  
Experimental Studies ◽  
Experimental Tests ◽  
Mineral Oil ◽  
Hydraulic Motor ◽  
Small Constant ◽  
Influence Of Water ◽  
The Difference ◽  
Lubricating Properties

Abstract In this paper volumetric losses in hydraulic motor supplied with water and mineral oil (two liquids having significantly different viscosity and lubricating properties) are described and compared. The experimental tests were conducted using an innovative hydraulic satellite motor, that is dedicated to work with different liquids, including water. The sources of leaks in this motor are also characterized and described. On this basis, a mathematical model of volumetric losses and model of effective rotational speed have been developed and presented. The results of calculation of volumetric losses according to the model are compared with the results of experiment. It was found that the difference is not more than 20%. Furthermore, it has been demonstrated that this model well describes in both the volumetric losses in the motor supplied with water and oil. Experimental studies have shown that the volumetric losses in the motor supplied with water are even three times greater than the volumetric losses in the motor supplied with oil. It has been shown, that in a small constant stream of water the speed of the motor is reduced even by half in comparison of speed of motor supplied with the same stream of oil.

Thermodynamic and experimental studies of catalytic reforming of exhaust gas recirculation in gasoline engines

2011 ◽  
Vol 102 (1-2) ◽  
pp. 44-53 ◽  
Author(s):  
S. Rijo Gomes ◽  
N. Bion ◽  
G. Blanchard ◽  
S. Rousseau ◽  
V. Bellière-Baca ◽  
...  
Keyword(s):  
Experimental Studies ◽  
Exhaust Gas Recirculation ◽  
Exhaust Gas ◽  
Catalytic Reforming ◽  
Gasoline Engines ◽  
Gas Recirculation

INFLUENCE OF WATER ADDITION ON THE PERFORMANCE OF THE TWO-WAY OLIVE PASTE DECANTERS

1994 ◽  
pp. 341-343
Author(s):  
M. Hermoso-Fernández ◽  
M. Uceda-Ojeda ◽  
J. González-Delgado
Keyword(s):  
Water Addition ◽  
Influence Of Water

Influence of Water Addition on the Kinetics of Mechanochemical Synthesis of Hydroxyapatites from DCPD+CaO

2003 ◽  
Vol 254-256 ◽  
pp. 931-936 ◽  
Author(s):  
H. El Briak-BenAbdeslam ◽  
C. Mochales ◽  
Josep A. Planell ◽  
M.P. Ginebra ◽  
P. Boudeville
Keyword(s):  
Mechanochemical Synthesis ◽  
Water Addition ◽  
Influence Of Water ◽  
Kinetics Of

scholarly journals The Influence of Water and Mineral Oil on Volumetric Losses in the Displacement Pump for Offshore and Marine Applications

2019 ◽  
Vol 26 (2) ◽  
pp. 173-182 ◽  
Author(s):  
Paweł Śliwiński
Keyword(s):  
Mathematical Model ◽  
Experimental Studies ◽  
Experimental Tests ◽  
Mineral Oil ◽  
Water Pump ◽  
Positive Displacement ◽  
Oil Pump ◽  
Influence Of Water ◽  
Displacement Pump ◽  
Marine Applications

Abstract In this paper, volumetric losses in a positive displacement pump supplied with water and mineral oil are described and compared. The experimental tests were conducted using a prototype of a satellite pump (with a non-circular tooth working mechanism). In this paper, the sources of volumetric losses in this pump are characterized. On this basis, a mathematical model of these losses has been presented. The results of the calculation of volumetric losses according to the model are compared with the results of the experiment. Experimental studies have shown that the volumetric losses in the water pump are even 3.2 times greater than the volumetric losses in the oil pump. It has been demonstrated that the mathematical model describing the volumetric losses both in the water pump and in the oil pump is quite good. It has been found that the results from the loaded pump simulation (at ∆p=25MPa and ant n=1500rpm) differ from the results of the experiment by no more than 5% both for oil and water.

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