Integrated reduction and acid-catalysed conversion of furfural in alcohol medium using Zr, Al-containing ordered micro/mesoporous silicates

MM Antunes, S Lima, P Neves, AL Magalhaes… - Applied Catalysis B …, 2016 - Elsevier
Ordered porous silicates of the type TUD-1 and zeolite beta possessing zirconium and
aluminium sites were evaluated as eco-friendly heterogeneous, multifunctional catalysts for …

Combustion system optimization for dimethyl ether using a genetic algorithm

M Zubel, T Ottenwälder, B Heuser… - … Journal of Engine …, 2021 - journals.sagepub.com
Dimethyl ether is a gaseous fuel which can easily be liquefied under moderate pressures. Its
high reactivity makes it suitable for combustion in a compression ignition engine, and due to …

Advanced methodology for the detection of smoke point heights in hydrocarbon flames

B Graziano, T Ottenwälder, D Manderfeld… - Energy & …, 2018 - ACS Publications
The American Society for Testing and Materials (ASTM) D1322 assesses the sooting
tendency of fuels using smoke points. Recently, the fuel uptake rate measurement with …

Laser spectroscopic investigation of diesel-like jet structure using C8 oxygenates as the fuel

T Raffius, T Ottenwaelder, C Schulz, G Grünefeld… - Fuel, 2019 - Elsevier
Di-n-butyl ether (DNBE) and n-octanol have very low sooting tendencies in diesel-like
combustion, as demonstrated in previous engine studies. This finding is not fully understood …

Flame-temperature, light-attenuation, and CO measurements by spontaneous Raman scattering in non-sooting diesel-like jets

T Raffius, C Schulz, T Ottenwälder, G Grünefeld… - Combustion and …, 2017 - Elsevier
Quantitative spatially resolved measurements of temperature and species are lacking
particularly in the core of combusting diesel jets. Major problems are light attenuation and …

Effects of biofuels on the mixture formation and ignition process in diesel-like jets

T Ottenwaelder, S Pischinger - 2017 - sae.org
In order to reduce engine out CO2 emissions it is a main subject to find new alternative fuels
out of renewable sources. For this paper, several fuels were selected which can be …

Quantitative nitrogen oxide measurements by laser-induced fluorescence in diesel-like n-heptane jets with enhanced premixing

T Ottenwälder, C Schulz, T Raffius, HJ Koß… - Combustion and …, 2018 - Elsevier
Maintaining low NO x emissions over the operating range of diesel engines continues to be
a major issue. However, quantitative measurements of nitric oxide (NO) are lacking …

Mixture-Formation Analysis by PLIF in an HSDI Diesel Engine Using C8-Oxygenates as the Fuel

T Huelser, D Klein, B Heuser, T Brands, C Schulz… - … International Journal of …, 2015 - JSTOR
With increasing interest in new biofuel candidates, 1-octanol and di-n-butylether (DNBE)
were presented in recent studies. Although these molecular species are isomers, their …

Laser-Induced Incandescence Measurements of Tailor-Made Fuels in an Optical Single-Cylinder Diesel Engine

D Klein, S Pischinger - SAE International Journal of Engines, 2017 - JSTOR
The influence of two oxygenated tailor-made fuels on soot formation and oxidation in an
optical single cylinder research diesel engine has been studied. For the investigation a …

Butyl ethers and levulinates

F Kremer, S Pischinger - Biofuels from Lignocellulosic Biomass …, 2016 - Wiley Online Library
Butyl ethers are well known as fuel additives for gasoline fuels. Especially methyl tert‐butyl
ether (MTBE) and ethyl‐tert‐butyl ether (ETBE) have been used as fuel additives to increase …