Preliminary Investigation on Genotoxic Potential of Diesel Exhaust

Barale, Roberto; Bulleri, M.; Cornetti, G. M.; Loprieno, N.; Wachter, Wolfgang F.

doi:10.4271/920397

Cited by 11 publications

(16 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This paper provides a suitable methodology for engineers who need to better understand the physical phenomena involved in diesel combustion, to aid in their development and design of a more reliable combustor. The main conclusions are as follows: (1) In this study, maximum soot distribution was generated during the latter part of the maximum flame generation phase, and maximum temperature was observed in the previous phase using a one-hole injector in a constant-volume chamber. (2) In the case of a diesel diffusion flame, the maximum temperature was observed at 2300K during an early stage of flame development in the middle of the flame.…”

Section: Discussionmentioning

confidence: 98%

“…In order to comply with these more stringent emission standards, which are primarily motivated by environmental concerns, the automotive industry is continuously investigating new ways to improve engine technologies. In recent years, a significant portion of the research in this field has been focused on new combustion modes that will enable reductions in particulate matter and NOx emissions from diesel engines [1,2].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A study on the measurement of temperature and soot in a constant-volume chamber and a visualized diesel engine using the two-color method

2009

View full text Add to dashboard Cite

In this study, the measurements of soot and temperature were used to investigate the turbulent diesel diffusion flame in a constant-volume chamber and a visualized direct injection (D.I.) diesel engine using the two-color method and a high-speed camera. Through these experiments, we effectively acquired information on the temperature and soot by the two-color method in a turbulent diesel diffusion flame. In addition, this experiment revealed that the KL factor was high on the parts of the chamber where the temperature dropped. On the other hand, the KL factor was low where the temperature increased rapidly. Also, the highest temperatures of the flame in a constant-volume chamber and in a D.I. diesel engine were approximately 2300K and 2400K, respectively. This study suggests the measurement of not only the temperature but also the soot of a diffusion flame of the diesel engine through an optical methodology.

show abstract

Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

A study on the measurement of temperature and soot in a constant-volume chamber and a visualized diesel engine using the two-color method

2009

View full text Add to dashboard Cite

show abstract

“…Так, при наличии в ОГ других канцерогенов, олефиновых углеводородов СН х и оксидов азота NО х неканцерогенные ПАУ в ряде случаев становятся более опасными, чем канцероген-ные ПАУ. Они способствуют образованию особо ядо-витых нитропроизводных ПАУ [17,18]. Большинство ПАУ фотоокисляемы.…”

Section: токсикологическое действие пауunclassified

“…3). Эти канцерогены оказывают отдаленное во времени мутагенное или тератогенное воздействие, вызывая генетические нарушения в отношении ши-рокого ряда организмов [17,19,20,21].…”

Section: токсикологическое действие пауunclassified

Assessment of Ecological Safety of Power Plants with Diesel Engines

Маркова¹,

Markova²,

Девянин³

et al. 2014

Safety in Technosphere

View full text Add to dashboard Cite

show abstract

“…At this time, it is not known if they will behave as particles or as vapors because of their rapid solubility. Barale et al, (1992) tested one light and three heavy duty diesel engines representing past present and future production, under steady state and transient conditions. They concluded that a correlation between engine load and mutagenic activity may be shown from the particulate extracts and that water port injection reveals a dramatic decrease of mutagenicity at high load conditions.…”

Section: Introductionmentioning

confidence: 99%

Combustion analysis and particulate mutagenicity characterization for a single-cylinder diesel engine fueled by Fischer -Tropsch derived liquids

McMillian¹

View full text Add to dashboard Cite

Further growth of diesel engines in the light-duty and heavy-duty vehicular markets is closely linked to the potential health risks of diesel exhaust. Cleaner burning fuels, such as those derived from natural gas via the Fischer-Tropsch (FT) process, offer a potentially economically viable alternative to standard diesel fuel. As part of this study, a two-liter, single-cylinder, four-stroke direct-injected engine was instrumented for in-cylinder pressure measurements. The emissions and performance data from engine operation with Federal low sulfur No. 2 diesel fuel (DF) and natural gas derived FT fuel were compared. Also as part of the study, an investigation was carried out on the mutagenic characteristics of particulate matter (PM) derived from FT and DF fuel combustion by relating the in-vitro mutagenic activity of the particulate matter to engine operating conditions and particle size via the Ames Salmonella typhimurium bioassay (Maron and Ames, 1983). Particulate matter from two engine conditions were gathered using a Micro-Orifice Uniform Deposition Impactor (MOUDI) for size selective mutagenic analysis. Results of the mutagenicity study indicate differences in the mutagenic response of the PM soluble organic fraction (SOF) of both Federal diesel No. 2 and FT fuel as functions of engine operating conditions, fuel type and particle size. The extracted solubles from particles of aerodynamic diameters greater than 100 nm were found to exhibit significantly greater mutagenic effect than their smaller counterparts (<100 nm) for both fuels. Results of the combustion and emission study revealed a general trend for lower emissions for FT fuel compared to DF fuel. NO x emissions correlated well with ignition delay and the amount of heat released in the premixed combustion phase. With the exception of two high load engine conditions, lower CO and total hydrocarbon (THC) emissions were the general trend for FT fuel.

show abstract

Preliminary Investigation on Genotoxic Potential of Diesel Exhaust

Cited by 11 publications

References 25 publications

A study on the measurement of temperature and soot in a constant-volume chamber and a visualized diesel engine using the two-color method

A study on the measurement of temperature and soot in a constant-volume chamber and a visualized diesel engine using the two-color method

Assessment of Ecological Safety of Power Plants with Diesel Engines

Combustion analysis and particulate mutagenicity characterization for a single-cylinder diesel engine fueled by Fischer -Tropsch derived liquids

Contact Info

Product

Resources

About