Emission reductions of Air Pollutants from a Heavy-duty Diesel Engine Mixed with Various Amounts of H2/O2

Abstract

This study investigated emission reductions of polycyclic aromatic hydrocarbons (PAHs), hydrocarbons (HCs), carbon monoxide (CO), carbon dioxide (CO 2 ), particulate matters (PM), and nitrogen oxides (NO x ) from a heavy-duty diesel engine (HDDE) at one low load steady-state condition, 24.5% of the maximum load (40 km/h), using premium diesel fuel (PDF) mixed with various amounts of H 2 /O 2 . Measurements showed that the mixed fuel of HO60 reduced the brake specific fuel consumption (BSFC) most, by an amount of 12.6%, as compared with PDF. Meanwhile, with HO60, the emission of air pollutant was deceased by 32.3% for PAHs, 9.5% for HCs, 7.2% for CO, 4.4% for CO 2 , and 19.3% for PM, but the emission of NO x was increased by 9.9%.

Emissions of Regulated Pollutants and PAHs from Waste-cooking-oil Biodiesel-fuelled Heavy-duty Diesel Engine with Catalyzer

“…formaldehyde), polycyclic aromatic hydrocarbons (PAHs), and nitro-PAHs (Chen et al, 2001;Grosjean et al, 2001;Mi et al, 2001;Lin et al, 2005;Ho et al, 2007;Legreid et al, 2007;BanWeiss et al, 2008;Chien et al, 2009;Lin et al, 2009;Shi et al, 2009;Shi et al, 2010;Srivastava et al, 2011;Yao et al, 2011;Wang et al, 2012). Therefore, alternative fuel is needed in the future.…”

Application of HCCI Engine in Motorcycle for Emission Reduction and Energy Saving

“…As compared with the SI engine, it is close to zero. It could be explained that the principal source of NO x is the oxidation of nitrogen, which is temperature and oxygen concentration dependent (Wang et al, 2012). The combustion temperature of the HCCI engine is low.…”

Reducing Emissions of Polycyclic Aromatic Hydrocarbons and Greenhouse Gases from Engines Using a Novel Plasma-Enhanced Combustion System

“…However, vehicles remain a major source of nitrogen oxides (NO x ), carbon monoxide (CO), hydrocarbons (HC), particulate matter (PM) and polycyclic aromatic hydrocarbon (PAH) emissions, and many researchers have suggested that mobile sources are the major contributor in urban and suburban environments (Lin et al, 2006a, b, c;Tsai et al, 2010a, b;Wu et al, 2010;Hsieh et al, 2011a, b;Karavalakis et al, 2011;Kim et al, 2011;Li et al, 2011;Shen et al, 2011;Srivastava et al, 2011;Yao et al, 2011;Cheng et al, 2012a, b;Lai et al, 2012;Liang et al, 2012;Liu et al, 2012;Pilusa et al, 2012;Tsai et al, 2012;Wang et al, 2012).…”