A5086060115- Advanced Combustion Engine Technologies
- Combustion and flame dynamics
- Vehicle emissions and performance
- Biodiesel Production and Applications
- Catalytic Processes in Materials Science
- Heat transfer and supercritical fluids
- Atmospheric chemistry and aerosols
- Air Quality and Health Impacts
- Energy and Environment Impacts
- Chemical Thermodynamics and Molecular Structure
- Air Quality Monitoring and Forecasting
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Rocket and propulsion systems research
- Combustion and Detonation Processes
- Advanced Thermodynamic Systems and Engines
- Refrigeration and Air Conditioning Technologies
- Enzyme Catalysis and Immobilization
- Advanced Sensor Technologies Research
- Maritime Transport Emissions and Efficiency
- Carcinogens and Genotoxicity Assessment
- nanoparticles nucleation surface interactions
- Spectroscopy and Laser Applications
- Thermochemical Biomass Conversion Processes
- Catalysis for Biomass Conversion
- Laser-induced spectroscopy and plasma
Lund University
2016-2025
Alstom (United States)
2007-2020
Scania (Sweden)
2018-2019
Bridge University
2019
Combustion Institute
2005-2017
Japan External Trade Organization
2008
An experiment was conducted to investigate the effect of charge stratification on combustion phasing in a single cylinder, heavy duty (HD) compression ignition (CI) engine. To do this start injection (SOI) changed from -180° after top dead centre (ATDC) near (TDC) during which CA50 (the crank angle at 50% fuel energy is released) kept constant by changing intake temperature. At each SOI, response slight increase or decrease either temperature SOI were also investigated. Afterwards, repeated...
Abstract Background Diesel exhaust is carcinogenic and exposure to diesel particles cause health effects. We investigated the toxicity of designed have varying physicochemical properties in order attribute effects specific particle characteristics. Particles from three fuel types were compared at 13% engine intake O 2 concentration: MK1 ultra low sulfur (DEP13) two renewable fuels hydrotreated vegetable oil (HVO13) rapeseed methyl ester (RME13). Additionally, generated 9.7% (DEP9.7) 17%...
Internal combustion engine (ICE) fuel efficiency is a balance between good indicated and mechanical efficiency. High reached with very diluted air/fuel-mixture high load resulting in peak cylinder pressure (PCP). On the other hand, obtained low as piston rings bearings can be made less friction. This paper presents studies of which consists two stage compression expansion cycle. By splitting into different cycles, high-pressure (HP) low-pressure (LP) cycles respectively, it possible to reach...
Alternative fuels have been proposed as a means for future energy-secure and environmentally sustainable transportation. This review benchmarking show that several of the alternative (e.g. methanol, ethanol, higher alcohols, RME, HVO, DME, biogas/CNG) work well with different engine concepts such conventional SI, DICI, dual fuel, emerging HCCI, RCCI, PPC. Energy consumption is in most cases similar to diesel or gasoline, exception methanol ethanol use less energy, especially SI engines....
Compared to petroleum diesel, renewable diesel fuels and exhaust aftertreatment systems can reduce primary emissions that are hazardous human health the environment. Secondary aerosol which form upon atmospheric processing have, however, been less studied. This study aimed quantify impacts of replacing with (hydrotreated vegetable oil [HVO] rapeseed methyl ester [RME]) on secondary from a heavy-duty engine at different stages an system. Emission characterization was obtained by combining...
Gasoline and methanol are highly recommended for low temperature combustion (LTC) engines due to their high research octane number. However, fuelled with these fuels suffer from unburned hydrocarbon (UHC) carbon monoxide (CO) emissions at loads, which can be improved by controlling the level of mixture stratification. This paper reports on experimental numerical comparison emission characteristics engine performance iso-octane in a heavy-duty direct-injection compression ignition operating...
The focus has recently been directed towards the engine out soot from Diesel engines. Running an in PPC (Partially Premixed Combustion) mode a proven tendency of reducing these emissions significantly. In addition to combustion strategy, several studies have suggested that using alcohol fuels aid ultra-low levels. This study analyzes and compares characteristics PM naphtha gasoline PPC, ethanol methanol diffusion terms mass concentration, number concentration particle size distribution...
Low temperature combustion (LTC) of high-octane number fuels in compression ignition engines offers an opportunity to simultaneously achieve high engine thermal efficiency and low emissions NOx particulate matter without using expensive after-treatment technologies. LTC are known be sensitive the operation conditions combustor geometry. It is important understand fundamental flow physics order develop technology further for commercial application. A joint numerical experimental investigation...
Methanol is a promising renewable fuel that can be used either in single-fuel or dual-fuel strategies to reduce the carbon intensity of internal combustion engines. In any strategy with methanol, both unburned methanol and formaldehyde emissions are criteria pollutants potential drawbacks. Thus, accurate measurement from various critical their evaluation as solutions towards sustainable future. The flame ionization detectors (FIDs) typically engine research measure hydrocarbons show reduced...
<div class="section abstract"><div class="htmlview paragraph">Methanol can be produced renewably and used in compression ignition (CI) engines as a replacement for fossil diesel. However, methanol is low cetane fuel, creating challenges achieving stable operation, particularly at load. One potential solution through surface via glow plug. In this work, experiments were conducted on methanol-fueled 2.1 L single cylinder engine instrumented with The was designed alcohol combustion...
Partially Premixed Combustion (PPC) is used to meet the increasing demands of emission legislation and improve fuel efficiency. PPC with gasoline fuels have advantage a longer premixed duration fuel/air mixture which prevents soot formation at higher loads. The objective this paper investigate degree stratification for low load (towards idle) engine conditions using different injection strategies negative valve overlap (NVO). question is, how homogenous or stratified partially combustion...