scholarly journals DETERMINATION OF VELOCITY SEAL AREA REDUCTION BASED ON PURGE GAS FLOW RATE AND PRESSURE DROP IN FLARE SYSTEM

2020 ◽  
Vol 04 (10) ◽  
pp. 45-48
Author(s):  
Akash Kumar ◽  
Sachin Phadatare ◽  
Pradeep Deore
Keyword(s):  
Pressure Drop ◽  
Flow Rate ◽  
Gas Flow ◽  
Gas Flow Rate ◽  
Area Reduction ◽  
Purge Gas

Determination of the Minimum Safe Purge Gas Flow Rate in Flare Systems with a Velocity Seal

2014 ◽  
Vol 49 (6) ◽  
pp. 474-481
Author(s):  
Yong-Zhong Bai ◽  
Peng Wang ◽  
Jun-cheng Jiang
Keyword(s):  
Flow Rate ◽  
Gas Flow ◽  
Gas Flow Rate ◽  
Purge Gas

Measurement of Gas Flow Rate by the Method of Timing a Pressure Drop

1968 ◽  
Vol 39 (4) ◽  
pp. 608-609 ◽  
Author(s):  
W. Brennen ◽  
Robert L. Brown
Keyword(s):  
Pressure Drop ◽  
Flow Rate ◽  
Gas Flow ◽  
Gas Flow Rate

Experimental Characterization of Aerosol Production, Transport, Vaporization, and Atomization Systems. Part I: Factors Controlling Aspiration Rates

1985 ◽  
Vol 39 (6) ◽  
pp. 916-920 ◽  
Author(s):  
R. K. Skogerboe ◽  
S. J. Freeland
Keyword(s):  
Pressure Drop ◽  
Flow Rate ◽  
Gas Flow ◽  
Present Knowledge ◽  
Experimental Characterization ◽  
Gas Flow Rate ◽  
Factors Affecting ◽  
Simple Linear Equation ◽  
The Relationship

This paper describes the results of the first stage of an investigation designed to extend present knowledge of the factors affecting aerosol production, transport, vaporization, and atomization in analytical spectroscopy systems. It focuses on factors controlling aspiration of aqueous solutions. The results demonstrate that the effect of gas flow on the pressure drop induced at the tip of the solution draw tube can be described by a simple linear equation; that the relationship between gas flow rate and solution nebulization rate can also be modelled by a simple equation; and that these relationships are not adequately represented by the Hagen-Poiseulle equation, as is often claimed.

scholarly journals Experimental Study of the Influence of Gas Flow Rate on Hydrodynamic Characteristics of Sieve Trays and Their Effect on CO2 Absorption

2021 ◽  
Vol 11 (22) ◽  
pp. 10708
Author(s):  
Adel Almoslh ◽  
Falah Alobaid ◽  
Christian Heinze ◽  
Bernd Epple
Keyword(s):  
Experimental Study ◽  
Pressure Drop ◽  
Flow Rate ◽  
Gas Flow ◽  
Water System ◽  
Volumetric Flow Rate ◽  
Hydrodynamic Characteristics ◽  
Co2 Absorption ◽  
Gas Flow Rate ◽  
Sieve Tray

An experimental study was conducted in the sieve tray column to investigate the influence of gas flow rate on the hydrodynamic characteristics of the sieve tray, such as total tray pressure drop, wet tray pressure drop, dry tray pressure drop, clear liquid height, liquid holdup, and froth height. The hydrodynamic characteristics of the sieve tray were investigated for the gas/water system at different gas flow rates from 12 to 24 Nm3/h and at different pressures of 0.22, 0.24, and 0.26 MPa. In this study, a simulated waste gas was used that consisted of 30% CO2 and 70% air. The inlet volumetric flow rate of the water was 0.148 m3/h. The temperature of the inlet water was 19.5 °C. The results showed that the gas flow rate has a significant effect on the hydrodynamic characteristics of the tray. The authors investigated the effect of changing these hydrodynamic characteristics on the performance of a tray column used for CO2 capture.

scholarly journals KLa Determination Using the Effectiveness-NTU Method: Application to Countercurrent Absorbers in Operation Using Viscous Solvents for VOCs Mass Transfer

2019 ◽  
Vol 3 (2) ◽  
pp. 57
Author(s):  
Éric Dumont
Keyword(s):  
Mass Transfer ◽  
Flow Rate ◽  
Gas Flow ◽  
Liquid Flow Rate ◽  
Gas Flow Rate ◽  
Heat Exchanger Design ◽  
Volatile Organic ◽  
Overall Mass Transfer Coefficient ◽  
Viscous Solvents

In this study, the Effectiveness-NTU method, which is usually applied to heat exchanger design, was adapted to gas–liquid countercurrent absorbers to determine the overall mass transfer coefficient, KLa, of the apparatus in operation. It was demonstrated that the ε-NTU method could be used to determine the KLa using the Henry coefficient of the solute to be transferred (HVOC), the gas flow-rate (QG), the liquid flow-rate (QL), the scrubber volume (V), and the effectiveness of the absorber (ε). These measures are calculated from the gaseous concentrations of the solute measured at the absorber inlet (CGin) and outlet (CGout), respectively. The ε-NTU method was validated from literature dedicated to the absorption of volatile organic compounds (VOCs) by heavy solvents. Therefore, this method could be a simple, robust, and reliable tool for the KLa determination of gas–liquid contactors in operation, despite the type of liquid used, i.e., water or viscous solvents.

scholarly journals Mass transfer parameters in spray columns

1989 ◽  
Vol 8 (2) ◽  
pp. 56-62
Author(s):  
A. J. Rautenbach ◽  
G. Kornelius
Keyword(s):  
Mass Transfer ◽  
Flow Rate ◽  
Gas Flow ◽  
Gas Flow Rate ◽  
Spray Characteristics ◽  
Photographic Technique ◽  
Transfer Parameters

To determine mass transfer parameters in spray columns the spray characteristics are required. A photographic technique that allows determination of these characteristics of wash oil sprayed through solid nozzles is described. Special precautions had to be taken because wash oil rendered the column walls opaque. Results are given for a specific nozzle as function of liquid and countercurrent gas flow rate.

scholarly journals Improvement of atomic-emission analysis with inductively connected plasma for studying the composition of mineral samples.

2020 ◽  
Vol 11 (3-2020) ◽  
pp. 23-29
Author(s):  
D. N. Bordiyan ◽  
◽  
I. R. Elizarova ◽  
V. F. Zaytsev ◽  
M. B. Malisheva ◽  
...  
Keyword(s):  
Flow Rate ◽  
Gas Flow ◽  
Analytical Signal ◽  
Atomic Emission ◽  
Spray Chamber ◽  
Gas Flow Rate ◽  
Emission Analysis ◽  
Atomic Emission Analysis

The paper considers аsoftware method (WinLab32,Optima 2100DV)emission spectrometer for increasing the intensity of the analytical signal when the gas flow rate of the atomizer in the spray chamber changes. The determination of the optimal atomizer gas flow value was carried out as a result of mathematical and empirical approximations for each wavelength of the selected analytes.

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