On the Development of Modern Analysis Techniques for Single Cylinder Testing of Large-Bore Engines

1991 ◽  
Vol 113 (3) ◽  
pp. 390-398 ◽  
Author(s):  
G. M. Beshouri
Keyword(s):  
Capital Investment ◽  
New Technologies ◽  
Dual Fuel ◽  
Single Cylinder ◽  
Analysis Techniques ◽  
The World ◽  
Dual Fuel Engines ◽  
Modern Analysis ◽  
Prohibitive Cost ◽  
Engine Development

The world-wide consolidation of many engine manufacturers, along with the relatively low production rate of new engines, has resulted in a significant reduction in the facilities, engines, and personnel available for conducting full-engine laboratory quality tests against calibrated dynamometers. Concurrently, the continued pressure for further reduction in exhaust emissions, along with improvements in fuel consumption, has created a growing aftermarket for the retrofit/upgrade of new technologies requiring further engine development. Regrettably, the prohibitive cost and capital investment associated with full engine tests, along with the lack of facilities, makes such tests prohibitive. Therefore, a number of new experimental techniques and associated analysis methods have been developed for conducting laboratory quality single-cylinder tests on commercial engines without interfering with their profitable operation. Such tests have been successfully conducted on both spark-ignited and dual fuel engines. Many details of the methods utilized, along with estimations of their accuracy and reliability, are described.

Optimization of High Pressure Direct Injection Micro-Pilot As a Retrofit Technology for Conventional Dual Fuel Engines

2019 ◽  
Author(s):  
Greg Beshouri ◽  
Gerry Fischer
Keyword(s):  
High Pressure ◽  
Performance Optimization ◽  
Experimental Testing ◽  
Direct Injection ◽  
Dual Fuel ◽  
Injection Timing ◽  
Test Results ◽  
Fuel Gas ◽  
Single Cylinder ◽  
Dual Fuel Engines

Abstract In the late 1980’s Enterprise Engine Company performed a single cylinder test of micro-pilot high pressure direct injection as a retrofit technology for conventional dual fuel engines. While that testing demonstrated a number of benefits for this technology, non-technical considerations led to the use of low pressure Pre-Combustion Chamber (PCC) micro-pilot technology as the retrofit technology instead. Thirty years later, when the automotive components of the PCC micro-pilot system were no longer available, the opportunity again arose to test the capabilities of an off the shelf high pressure direct injection micro-pilot system as a retrofit technology for a conventional dual fuel engine. Single cylinder and full engine testing of the high pressure direct injection micro-pilot injection confirmed the results of the 1980’s testing. The test results also corroborated modern analytical and experimental testing of high pressure pilot technology. In particular, the interaction between the diesel pilot and primary fuel gas charge is very complex and sometimes counterintuitive. Likewise performance optimization requires careful balance of injection timing, injection quantity and fuel gas air/fuel ratio. Even then, exhaust gas methane emissions remain counterintuitive. This paper reviews modern single cylinder and full engine test results focusing on optimization parameters for high pressure direct injection micro-pilot for retrofit and new engine applications.

Pursuing Customer Satisfaction—An Abridged Technical History of Cummins Engine Development

1999 ◽  
Vol 121 (2) ◽  
pp. 177-185
Author(s):  
P. F. Flynn
Keyword(s):  
Diesel Engine ◽  
Customer Satisfaction ◽  
Market Development ◽  
Development Activity ◽  
Single Cylinder ◽  
Water Pumping ◽  
Small Manufacturer ◽  
The World ◽  
History Of ◽  
Engine Development

The paper presents a brief overview of the technical and market development activity undertaken by Cummins Engine Company. The process of identifying customers, demonstrating product capability to those customers, and developing the engines to meet evolving customer needs is portrayed. These activities facilitated the growth and expansion of Cummins Engine Company from a small manufacturer of single-cylinder engines for water pumping, to the largest independent diesel engine manufacturer in the world. The period of time covered is the 77 years of operation from 1919 to 1996.

Intensive Farming of Animals in 2020

2000 ◽  
Vol 29 (1) ◽  
pp. 15-23 ◽  
Author(s):  
N.G. Gregory
Keyword(s):  
Capital Investment ◽  
New Technologies ◽  
Animal Feed ◽  
Public Attitudes ◽  
World Population ◽  
Livestock Industry ◽  
The World ◽  
The Future ◽  
Business Structure ◽  
The Way

Several factors will be important in determining the future of the intensive livestock industry. One is the way in which world population changes. Today, there are about 5.9 billion people in the world, 800 million of whom are hungry. In the future, the world population is expected to stabilize somewhere between 8 and 11 billion. Food production will have to increase by at least 40%, and maybe as much as 80%, to meet this increase. The demand for meat from feedlot cattle and intensively reared pigs and poultry is likely to rise. A second influence is the way investments are made in new technologies. Today's investments will yield tomorrow's technologies, and we should be able to identify some imminent changes by examining present venture capital investment portfolios. Another factor is the attitude that the large corporate meat and livestock companies have towards their industry. These large companies control and own a large part of the industry, and their attitudes and business structure help to determine the behaviour of the rest of the industry. Their behaviour is being affected by public attitudes towards big business and modern technologies. This paper focuses on some of the up-and-coming technologies within the context of that social and business structure. The technologies and potential changes described in this paper are new animal feed technologies, growth hormone transgenics, livestock breeding, nutraceuticals, livestock pharmaceuticals, segregated early weaning, legislation on biotechnology, the structure of the intensive livestock industry, and public attitudes towards biotechnology and the intensive livestock industry.

scholarly journals Optical single cylinder engines in engine research and development

2013 ◽  
Vol 152 (1) ◽  
pp. 71-78
Author(s):  
Ernst WINKLHOFER ◽  
Wolfgang HOPFNER
Keyword(s):  
Research And Development ◽  
Comprehensive Analysis ◽  
Research Topics ◽  
Design Elements ◽  
Single Cylinder ◽  
Analysis Techniques ◽  
Optical Engine ◽  
Engine Development ◽  
Development Applications ◽  
Development Tasks

We report on essential design elements of optically accessed research engines and describe selected examples of their applications in engine development. Whereas research topics most often address specific generic topics and are focused on comprehensive analysis of selected engine phenomena, the priority in using optical engines for engine development tasks is in providing data relevant for the operation of a normal multicylinder engine. In this latter case, optical engines are only used if their results have such high value that they justify the efforts required to achieve the outcome. Both, research and development applications, benefit from each other as they promote progress in optical engine technology as well as in application of new analysis techniques.

Auto Markets in the World and Strategy of Japan’s Companies

2019 ◽  
Vol 10 (10) ◽  
pp. 1003-1008
Author(s):  
Hiroyuki Matsuoka ◽  
Keyword(s):  
Saudi Arabia ◽  
Electric Vehicle ◽  
New Technologies ◽  
Auto Industry ◽  
Domestic Market ◽  
Automatic Driving ◽  
The World ◽  
Almost All ◽  
Made In

In the world auto market, top three companies are VW(Volkswagen), Runault-Nissan-Mistubishi, and Toyota. About some selected countries and areas, China, England, Italy, Australia, Germany, Turkey, Russia, Sweden, USA, Brazil, UAE, Japan, Vietnam and Thailand are more competitive. However, the situation is different. Seeing monopolistic market countries and areas, Saudi Arabia, Taiwan, Korea, Malaysia, France, India, and Pakistan, in particular, the influence of Japan to Taiwan, India, and Pakistan is very big. But in Korea and France, their own companies’ brands occupy the market. In Japan domestic market, the overall situation is competitive. Almost all vehicles made in Japan are Japanese brand. From now on, we have to note the development of electric vehicle (EV) and other new technologies such as automatic driving and connected car. That is because they will give a great impact on the auto industry and market of Japan. Now Japan’s auto industry is going to be consolidated into three groups, Honda, Toyota group, and Renault-Nissan-Mitsubishi group for seeking the scale merit of economy. Therefore, I will pay attention to the worldwide development of EV and other new technologies and the reorganization of auto companies groups.

Editorial

2017 ◽  
pp. 2-3
Author(s):  
Peter Hoar
Keyword(s):  
New Zealand ◽  
New Technologies ◽  
Editorial Team ◽  
Local Market ◽  
Design History ◽  
Recorded Sound ◽  
The Arts ◽  
The World ◽  
1960S And 1970S ◽  
New Zealanders

Kia ora and welcome to the second issue of BackStory. The members of the Backstory Editorial Team were gratified by the encouraging response to the first issue of the journal. We hope that our currentreaders enjoy our new issue and that it will bring others to share our interest in and enjoyment of the surprisingly varied backstories of New Zealand’s art, media, and design history. This issue takes in a wide variety of topics. Imogen Van Pierce explores the controversy around the Hundertwasser Art Centre and Wairau Māori Art Gallery to be developed in Whangarei. This project has generated debate about the role of the arts and civic architecture at both the local and national levels. This is about how much New Zealanders are prepared to invest in the arts. The value of the artist in New Zealand is also examined by Mark Stocker in his article about the sculptor Margaret Butler and the local reception of her work during the late 1930s. The cultural cringe has a long genealogy. New Zealand has been photographed since the 1840s. Alan Cocker analyses the many roles that photography played in the development of local tourism during the nineteenth century. These images challenged notions of the ‘real’ and the ‘artificial’ and how new technologies mediated the world of lived experience. Recorded sound was another such technology that changed how humans experienced the world. The rise of recorded sound from the 1890s affected lives in many ways and Lewis Tennant’s contribution captures a significant tipping point in this medium’s history in New Zealand as the transition from analogue to digital sound transformed social, commercial and acoustic worlds. The New Zealand Woman’s Weekly celebrates its 85th anniversary this year but when it was launched in 1932 it seemed tohave very little chance of success. Its rival, the Mirror, had dominated the local market since its launch in 1922. Gavin Ellis investigates the Depression-era context of the Woman’s Weekly and how its founders identified a gap in the market that the Mirror was failing to fill. The work of the photographer Marti Friedlander (1908-2016) is familiar to most New Zealanders. Friedlander’s 50 year career and huge range of subjects defy easy summary. She captured New Zealanders, their lives, and their surroundings across all social and cultural borders. In the journal’s profile commentary Linda Yang celebrates Freidlander’s remarkable life and work. Linda also discusses some recent images by Friedlander and connects these with themes present in the photographer’s work from the 1960s and 1970s. The Backstory editors hope that our readers enjoy this stimulating and varied collection of work that illuminate some not so well known aspects of New Zealand’s art, media, and design history. There are many such stories yet to be told and we look forward to bringing them to you.

BREAST CANCER SCREENING: CURRENT ACHIEVEMENTS, FUTURE PERSPECTIVES AND NEW TECHNOLOGIES

2019 ◽  
Vol 65 (5) ◽  
pp. 664-671
Author(s):  
Ilya Pyatnitskiy ◽  
O. Puchkova ◽  
Viktor Gombolevskiy ◽  
Lyudmila Nizovtsova ◽  
Natalya Vetsheva ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Screening ◽  
Breast Cancer Screening ◽  
New Technologies ◽  
Screening Program ◽  
Cochrane Library ◽  
Future Perspectives ◽  
Pubmed Database ◽  
The World ◽  
The Cochrane Library

The article presents a literature review of the PubMed database and the Cochrane library, aimed at analyzing the current situation and problems in the field of breast cancer screening in the world and Russia to form an idea of the key elements in organizing an effective screening program in the Russian healthcare system, as well as the possibilities of using new technologies when organizing such programs.

scholarly journals CFD Study and Experimental Validation of a Dual Fuel Engine: Effect of Engine Speed

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4307
Author(s):  
Roberta De Robbio ◽  
Maria Cristina Cameretti ◽  
Ezio Mancaruso ◽  
Raffaele Tuccillo ◽  
Bianca Maria Vaglieco
Keyword(s):  
Natural Gas ◽  
High Performance ◽  
Engine Speed ◽  
Pollutant Emissions ◽  
Dual Fuel ◽  
Automotive Market ◽  
Light Duty ◽  
Viable Solution ◽  
Dual Fuel Engines ◽  
Gas Ratio

Dual fuel engines induce benefits in terms of pollutant emissions of PM and NOx together with carbon dioxide reduction and being powered by natural gas (mainly methane) characterized by a low C/H ratio. Therefore, using natural gas (NG) in diesel engines can be a viable solution to reevaluate this type of engine and to prevent its disappearance from the automotive market, as it is a well-established technology in both energy and transportation fields. It is characterized by high performance and reliability. Nevertheless, further improvements are needed in terms of the optimization of combustion development, a more efficient oxidation, and a more efficient exploitation of gaseous fuel energy. To this aim, in this work, a CFD numerical methodology is described to simulate the processes that characterize combustion in a light-duty diesel engine in dual fuel mode by analyzing the effects of the changes in engine speed on the interaction between fluid-dynamics and chemistry as well as when the diesel/natural gas ratio changes at constant injected diesel amount. With the aid of experimental data obtained at the engine test bench on an optically accessible research engine, models of a 3D code, i.e., KIVA-3V, were validated. The ability to view images of OH distribution inside the cylinder allowed us to better model the complex combustion phenomenon of two fuels with very different burning characteristics. The numerical results also defined the importance of this free radical that characterizes the areas with the greatest combustion activity.

scholarly journals Marine dual fuel engines monitoring in the wild through weakly supervised data analytics

2021 ◽  
Vol 100 ◽  
pp. 104179
Author(s):  
Andrea Coraddu ◽  
Luca Oneto ◽  
Davide Ilardi ◽  
Sokratis Stoumpos ◽  
Gerasimos Theotokatos
Keyword(s):  
Data Analytics ◽  
Dual Fuel ◽  
In The Wild ◽  
Dual Fuel Engines ◽  
Weakly Supervised

scholarly journals Laws and Emerging Technologies

Laws ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 46
Author(s):  
Esther Salmerón-Manzano
Keyword(s):  
Information Technologies ◽  
New Technologies ◽  
Legal Issues ◽  
The Other ◽  
Special Issue ◽  
Legal Challenges ◽  
The World ◽  
Huge Impact ◽  
New Challenges ◽  
The Way

New technologies and so-called communication and information technologies are transforming our society, the way in which we relate to each other, and the way we understand the world. By a wider extension, they are also influencing the world of law. That is why technologies will have a huge impact on society in the coming years and will bring new challenges and legal challenges to the legal sector worldwide. On the other hand, the new communications era also brings many new legal issues such as those derived from e-commerce and payment services, intellectual property, or the problems derived from the use of new technologies by young people. This will undoubtedly affect the development, evolution, and understanding of law. This Special Issue has become this window into the new challenges of law in relation to new technologies.

Sign in / Sign up

Export Citation Format

Share Document