نتایج جستجو برای: diesel exhaust

تعداد نتایج: 24365  

Journal: :Occupational and environmental medicine 2005
D Boers M P A Zeegers G M Swaen Ij Kant P A van den Brandt

AIMS To investigate the relation between exposure to pesticides, polycyclic aromatic hydrocarbons (PAHs), diesel exhaust, metal dust, metal fumes, and mineral oil in relation to prostate cancer incidence in a large prospective study. METHODS This cohort study was conducted among 58,279 men in the Netherlands. In September 1986, cohort members (55-69 years) completed a self-administered questi...

Journal: :Journal of the National Cancer Institute 2012
Michael D Attfield Patricia L Schleiff Jay H Lubin Aaron Blair Patricia A Stewart Roel Vermeulen Joseph B Coble Debra T Silverman

BACKGROUND Current information points to an association between diesel exhaust exposure and lung cancer and other mortality outcomes, but uncertainties remain. METHODS We undertook a cohort mortality study of 12 315 workers exposed to diesel exhaust at eight US non-metal mining facilities. Historical measurements and surrogate exposure data, along with study industrial hygiene measurements, w...

2015
Teemu Sarjovaara

Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Teemu Sarjovaara Name of the doctoral dissertation Studies on Heavy Duty Engine Fuel Alternatives Publisher School of Engineering Unit Department of Energy Technology Series Aalto University publication series DOCTORAL DISSERTATIONS 208/2015 Field of research Internal combustion engines Manuscript submitted 11 September 2015 D...

2012
S. Ghosh D. Dutta

The use of biodiesel, the methyl esters of vegetable oils are becoming popular due to their low environmental impact and potential as a green alternative fuel for diesel engine. The aim of this study is to potential use of Pongamia oil methyl ester as a substitute for diesel fuel in diesel engine. Various proportions of Pongamia and Diesel (B25, B50, B75, and B100) are prepared by transesterifi...

2012
Sukhwinder Singh

--This research is aimed to investigate experimentally the performance and exhaust emission characteristics of a direct injection (DI) diesel engine when fuelled with blends of conventional diesel fuel and ethanol, blends of rice bran methyl ester with ethanol, blends of diesel and rice bran methyl ester over the entire range of load on the engine. The experimental results showed that the highe...

2017
Harsh Sapra Klaas Visser Douwe Stapersma Chris Dijkstra

After-treatment technologies are adopted in automobiles and ships to meet strict emission regulations, which increase exhaust back pressure. Furthermore, underwater exhaust systems are employed on board ships to save space, and reduce noise and pollution on working decks. However, water at exhaust outlet creates a flow resistance for the exhaust gases, which adds to the back pressure. High back...

Habibnejad, sadighzadeh, R. Noorpoor,

Diesel exhaust particles are a complex mixture of thousands of gases and fine substances that contain more than 40 different environmental contaminants. Being exposed to these exhaust particles (called soot) can cause lung damage and respiratory problems. Diesel particulate filters are used in many countries for mobile sources as a legal obligation to decrease harmful effect of these fine pa...

2002
L. Bromberg D. R. Cohn J. Heywood A. Rabinovich

Diesel plasmatron reformer technology can provide substantial throughputs without the need of using a catalyst The use of the special plasma facilitates robust noncatalytic conversion of diesel fuel into hydrogen rich gas with hydrogen yields that could be sufficient for NOx trap regeneration applications. Higher yields can be obtained with the use of a catalyst. Plasmatron reformers could also...

Journal: :energy equipment and systems 0
behdad shadidi department of biosystems engineering, faculty of agriculture, bu-ali sina university, hamedan, iran hossein haji agha alizade department of biosystems engineering, faculty of agriculture, bu-ali sina university, hamedan, iran barat ghobadian department of biosystems engineering, faculty of agriculture, tarbiat modaress university, tehran, iran

in internal combustion engines, only about a third of the total fuel input energy is converted into useful work. if the energy rejected into the cooling system and the exhaust gases could be recovered instead and put into useful work, fuel economy would have been substantially improved. the main aim of this research paper was to evaluate the effects of the hybrid nano-catalyst containing cerium...

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