Improvement of Diesel Combustion Using a Fuel-Water-Fuel Injection System.

Takasaki, Koji; Fukuyoshi, Tadashi; Otsubo, Masaru; Abe, Shigenobu; Osafune, Shin Nosuke; Ide, Hiroshi

doi:10.1299/kikaib.63.3165

Cited by 2 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…China's rapid economic development over the years, the demand for oil and gas resources, oil field production scale, and supporting technology are relatively perfect; the number of oil wells and water content is constantly improving; stratified water injection technology has also put forward higher performance requirements. Since the 1950s, waterflood oil recovery has been gradually understood by domestic industry and academia [10][11][12][13][14][15]. After years of development, an independent waterflood oil recovery technology system has been formed.…”

Section: Introductionmentioning

confidence: 99%

Intelligent Oil Production Stratified Water Injection Technology

Cheng

Dong

et al. 2022

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

As the driving energy to deal with the decrease of interlayer pressure caused by continuous oil production, the layered water injection technology has the characteristics of inhibiting the decrease of oil production and slowing down the increase of oil/gas ratio. In engineering, water injection technology is often used to improve the properties of crude oil, such as excessive viscosity, weak liquidity, and depleted storage, to avoid the formation of dead oil. Injecting appropriate amount of water into different production horizons can effectively maintain the formation water injection pressure, improve the sustainable development speed of the oilfield, ensure the oil production and effectively control the production cost. It is of great value to petroleum engineering and has been widely concerned by the industrial and academic circles at home and abroad. With the continuous development of oilfields over the years, most oilfields have become high-water-cut oilfields. Through the existing layered water injection technology, there are defects such as high labor cost, low operating efficiency, and long commissioning cycle. The ratio of water injection cost to constant increase gradually decreases, and the technical shortcomings become more and more obvious, which is difficult to meet production needs. It is urgent to study and optimize water injection technology scheme to meet oilfield production and technology iteration. In recent years, electronic technology, communication technology, automatic control technology, and other advanced production technology applied to geological exploration, logging technology fields such as engineering, oilfield development is towards integration and intelligent direction, which makes the advanced control and real-time communication intelligent power precision, and the layered water injection technology is possible. This paper summarizes the development history and status quo of oil recovery stratified water injection technology at home and abroad and points out that there are technical bottlenecks and development limitations in the development of water injection technology at present. Focusing on the current hot spots of intelligent oil recovery stratified water injection technology, the advantages and disadvantages of various intelligent water injection technology are compared and analyzed. It provides a certain theoretical reference value for the theoretical research and engineering application of intelligent stratified water injection technology to the equipment design and production of oilfield production and oil recovery technology research institutes and technology and equipment manufacturers.

show abstract

Section: Introductionmentioning

confidence: 99%

Intelligent Oil Production Stratified Water Injection Technology

Cheng

Dong

et al. 2022

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

show abstract

“…Thus, constraints from legislating bodies combine with market forces to push engine manufacturers towards creating engines that simultaneously use less fuel and produce fewer harmful pollutants. Techniques such as split injection, high pressure fuel injection (see Han [4] and Reitz [9]), and stratified fuel-water in cylinder injection (see Wirbeleit [12] and Takasaki [10]) have been shown effective at reducing pollutants from DI Diesel engines while minimizing fuel consumption. This paper describes a computational study of stratified Direct Water (DW) injection.…”

Section: Introductionmentioning

confidence: 99%

Effects of Direct Water Injection on DI Diesel Engine Combustion

Bedford¹,

Rutland²,

Dittrich³

et al. 2000

SAE Technical Paper Series

121

View full text Add to dashboard Cite

The effects of in-cylinder water injection on a direct injection (DI) Diesel engine were studied using a computational fluid dynamics (CFD) program based on the Kiva-3v code. The spray model is validated against experimental bomb data with good agreement for vapor penetration as a function of time. It was found that liquid penetration increased approximately 35% with 23% of the fuel volume replaced by water, due mostly to the increase in latent heat of vaporization.Engine calculations were compared to experimental results and showed very good agreement with pressure, ignition delay and fuel consumption.Trends for emissions were accurately predicted for both 44% and 86% load conditions. Engine simulations showed that the vaporization of liquid water as well as a local increase in specific heat of the gas around the flame resulted in lower Nitrogen Oxide emissions (NOx) and soot formation rates. Using stratified fuel-water injection increases soot at 86% loads due in part to late injection. Because NOx decreased at all loads, the injection timing can be advanced to minimize fuel consumption and soot.

show abstract

Improvement of Diesel Combustion Using a Fuel-Water-Fuel Injection System.

Cited by 2 publications

References 0 publications

Intelligent Oil Production Stratified Water Injection Technology

Intelligent Oil Production Stratified Water Injection Technology

Effects of Direct Water Injection on DI Diesel Engine Combustion

Contact Info

Product

Resources

About