scholarly journals Observation of Microexplosions in Spray Flames of Light Oil-Water Emulsions (3rd Report, Influence of the Diameter of Dispersed Water Droplets on the Spray Flame Structure)

2008 ◽  
Vol 74 (743) ◽  
pp. 1649-1654 ◽  
Author(s):  
Shuko TAKEDA ◽  
Manabu FUCHIHATA ◽  
Tamio IDA
Keyword(s):  
Flame Structure ◽  
Water Droplets ◽  
Spray Flame ◽  
Spray Flames ◽  
Light Oil ◽  
Oil Water

Spray Flame Study Using a Model Gas Turbine Swirl Burner

2013 ◽  
Vol 316-317 ◽  
pp. 17-22 ◽  
Author(s):  
Cheng Tung Chong ◽  
Simone Hochgreb
Keyword(s):  
Flow Field ◽  
Gas Turbine ◽  
Flame Structure ◽  
Fuel Droplets ◽  
Spray Flame ◽  
Spray Flames ◽  
Reaction Zones ◽  
Fixed Power ◽  
Particle Imaging ◽  
Gas Turbine Burner

A model gas turbine burner was employed to investigate spray flames established under globally lean, continuous, swirling conditions. Two types of fuel were used to generate liquid spray flames: palm biodiesel and Jet-A1. The main swirling air flow was preheated to 350 °C prior to mixing with airblast-atomized fuel droplets at atmospheric pressure. The global flame structure of flame and flow field were investigated at the fixed power output of 6 kW. Flame chemiluminescence imaging technique was employed to investigate the flame reaction zones, while particle imaging velocimetry (PIV) was utilized to measure the flow field within the combustor. The flow fields of both flames are almost identical despite some differences in the flame reaction zones.

The Effect of Water Content Diameter on the Structure of Light Oil-Water Emulsion Spray Flame

2007 ◽  
Author(s):  
Manabu Fuchihata ◽  
Shuko Takeda ◽  
Tamio Ida
Keyword(s):  
Water Content ◽  
Water Droplet ◽  
High Speed ◽  
Droplet Diameter ◽  
Flame Structure ◽  
Video Camera ◽  
Water Emulsion ◽  
Light Oil ◽  
Oil Water ◽  
Co Emission

Microexplosions of light oil-water emulsified fuel droplets were successfully documented using a high-speed video camera with laser illumination. The local frequency of the explosion occurrence, temperature profile and exhaust gas emissions were measured in spray flames of water-in-oil type emulsion formed using an air-assist atomizer with a ring pilot burner. Those results indicate that the flame structure changes as the water droplet diameter in the emulsion fuel was varied, even if the fuel components and their fractions were same. When the fuel includes the water droplet, whose median diameter was about 75μm, HC and CO emission were reduced as compared to those for the fuel of smaller water droplet content. It is probable that if the water droplet diameter is uniform, avalanching microexplosions occur at certain local region in the flame, and the water content vaporizes almost at once and extinguishes the flame. It leads to HC and CO emission increase. When the water droplet diameters are large, atomizer atomizes those; therefore, emulsion droplets include various size of water droplet in the flame. Consequently, the avalanching microexplosion occurrence is avoided, and HC and CO emissions are reduced.

Observation of Micro-Explosions in Spray Flames of Light Oil-Water Emulsions.

2000 ◽  
Vol 66 (646) ◽  
pp. 1544-1549 ◽  
Author(s):  
Yukio MIZUTANI ◽  
Manabu FUCHIHATA ◽  
Yoshio MATSUOKA ◽  
Masaaki MURAOKA
Keyword(s):  
Spray Flames ◽  
Light Oil ◽  
Oil Water

Spray flame structure in conventional and hot-diluted combustion regime

2015 ◽  
Vol 162 (3) ◽  
pp. 759-773 ◽  
Author(s):  
Hugo Correia Rodrigues ◽  
Mark J. Tummers ◽  
Eric H. van Veen ◽  
Dirk J.E.M. Roekaerts
Keyword(s):  
Flame Structure ◽  
Combustion Regime ◽  
Spray Flame

Preparation and Characterization of Water/Oil and Water/Oil/Water Emulsions Containing Biopolymer-Gelled Water Droplets

2007 ◽  
Vol 55 (1) ◽  
pp. 175-184 ◽  
Author(s):  
Jeonghee Surh ◽  
Goran T. Vladisavljević ◽  
Saehun Mun ◽  
D. Julian McClements
Keyword(s):  
Water Droplets ◽  
Oil Water

The Blake Field, Blocks 13/24a and 13/29b, UK North Sea

2020 ◽  
Vol 52 (1) ◽  
pp. 651-663 ◽  
Author(s):  
E. Saundry ◽  
J. Colmenares
Keyword(s):  
Depositional Environment ◽  
Integrated Approach ◽  
Water Contact ◽  
Dynamic Data ◽  
Fully Integrated ◽  
Geological Interpretation ◽  
Light Oil ◽  
Oil Water ◽  
4D Seismic ◽  
Different Levels

AbstractThe Blake Field is subdivided into two discrete parts, the ‘Channel’ and the ‘Flank’ areas. The two areas are geologically different but also reflect the different levels of maturity in terms of their development. Blake Channel was discovered in 1998, with first production commencing in 2001. Blake Flank was discovered in 1974 and developed in 2003.The field contains saturated light oil, with a field-wide oil–water contact and two significant gas caps. The reservoir comprises deep-water turbidite sands of Lower Cretaceous age.The combination of complex depositional environment and dynamic data resulted in the decision in 2016, to create a new model incorporating a fully integrated approach to subsurface evaluation and modelling. The latest work summarized in this paper incorporates a new geological interpretation along with the addition of aquifer extensions to capture depletion from offset fields, and a palaeo-oil leg, to help limit aquifer influx and improve history match. 4D seismic has also been incorporated to support the evaluation. Blake Channel and Flank have oil-in-place of 230 MMbbl and 300 MMbbl and have produced 94 MMbl and 15 MMbbl, respectively, to date.

Study on the generation process of small water droplets driven by bubbles penetrating oil-water interface

2004 ◽  
Vol 2004.2 (0) ◽  
pp. 241-242 ◽  
Author(s):  
Tomomasa UEMURA ◽  
Yasufumi YAMAMOTO ◽  
Noriyoshi YONEHARA ◽  
Manabu IGUCHI
Keyword(s):  
Generation Process ◽  
Water Interface ◽  
Water Droplets ◽  
Small Water ◽  
Oil Water
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