Burning fuels in an O2/H2O atmosphere is regarded as the next generation of oxy-fuel combustion for CO2 capture and storage (CCS). By combining oxy-fuel combustion and biomass utilization technology, CO2 emissions could be further reduced. Therefore, this work focuses on investigating the combustion characteristics of single particles from bituminous coal (BC) and pine sawdust (PS) in O2/N2, O2...

Nanocrystalline ZrO2 with particle size of about 38 nm was directly synthesized by sol-gel auto-combustion method. The overall process involved three steps: formation of homogeneous sol at 50-55°C; formation of dried gel at 110°C, and combustion of the dried gel at 400°C. Experiments revealed that ZrO2 dried gel derived from glycine (Fuel) and nitrate sol exhibited self pr...

Recently, particulate matter from diesel engines has become an important topic in environmental, scientific, and political discussions. European legislation on particulate matter (PM) emissions has made significant advancement with the adoption of limit value standards up to and including Euro IV for heavy-duty (HD) engines. Efforts to reduce soot particulate from automotive engine exhaust have...

This study examines the volatility distribution of organic emissions from solid fuel combustion sources Delhi, India, and chemical drivers OH reactivity secondary aerosol production potential.

So far, the possibility of synthesizing hydrogels based on multiple biopolymers has been investigated, and among them lignin proven to be one potentials for this purpose due advantages it offers. However, because its high molecular weight, steric hindrance few reactive sites structure, is sometimes necessary improve reactivity though chemical modifications. On basis previous results, two modifi...

Conventional gasoline engines suffer from low performance and NOx emissions. Controlled auto-ignition (CAI), sometimes referred to as homogeneous charge compression ignition (HCCI), is a promising concept solve such problems. CAI has the potential improve spark (SI) engine fuel economy while at same time solving trade-off of NOx-soot emissions found in (CI) engines. The can reach comparable tha...

Combustion behaviour of coal and biomass are different due to difference in their physical and chemical properties. Thermogravimetric analysis is a useful technique to determine combustion characteristics of coal/biomass blends. This study elaborates the lab scale findings of co-combustion experiments in Thermogravimetric analyzer (TGA) [in which Differential Scanning Calorimetric (DSC) and The...

Homogeneous charge compression ignition (HCCI) is a novel combustion strategy for IC engines that exhibits dramatic decreases in fuel consumption and exhaust emissions. Originally conceived in 1979, the HCCI methodology has been revisited several times by industry but has yet to be implemented because the process is difficult to control. To help address these control challenges, the authors her...

Thermal decomposition of dolomite in the presence of CO2 in a calcination environment is investigated by means of in situ X-ray diffraction (XRD) and thermogravimetric analysis (TGA). The in situ XRD results suggest that dolomite decomposes directly at a temperature around 700 °C into MgO and CaO. Immediate carbonation of nascent CaO crystals leads to the formation of calcite as an intermediate...