It is both possible and practicable to produce feed and fuel from grain. Using the value of grain to produce renewable energy for transport, while using the remaining protein content of the grain as a valuable protein source for livestock and for fish, can be seen as a complimentary and optimal use of all the grain constituents. Consideration must be given to maximise the value of the yeast com...

We investigate the star-formation history of gas-rich dwarf galaxies, taking account of the dynamical evolution of their neutral hydrogen (Hi) envelope. Gas-rich dwarfs are classified into blue compact dwarfs (BCDs) and dwarf irregulars (dIrrs). In this paper, their Hi envelope is clearly shown not to be blown away by their stellar feedback. This is concluded since the observed starformation ra...

A novel single phase co-solvent system using tetrahydrofuran (THF) promotes hydrolysis of maple wood to sugars, sugar dehydration, and lignin extraction simultaneously and achieves higher overall yields of the fuel precursors furfural, 5-hydroxymethylfurfural (HMF), and levulinic acid (LA) than previously reported from biomass. In a one-pot reaction, we obtained yields of 86% furfural, 21% HMF,...

This paper investigates whether a fusion power plant could be designed to be passively proliferation-proof. Even low neutron production rates enable fissile-fuel breeding, so such a fusion reactor must burn neutron-lean fuels. To burn these fuels economically requires a highpower-density fusion concept, and a D-He field-reversed configuration will be analyzed here. The paper discusses physics a...

Emissions from modern SI-engines are reduced by a three way catalyst. However if there are leaks in the exhaust system before the catalyst emissions increase for two reasons. First the untreated emissions leak out. Second which is worse, due to waves in the exhaust system, oxygen leaks into the manifold and causes an oxygen sensor offset. The result is increased emissions as the air/fuel contro...

IJSER © 2013 http://www.ijser.org Abstract: The Homogeneous Charge Compression Ignition Engine, HCCI, has the potential to combine the best of the Spark. Ignition and Compression Ignition Engines. With high octane number fuel the engine operates with high compression ratio and lean mixtures giving CI engine equivalent fuel consumption or better. Due to premixed charge without rich or stoichiome...

Abstract Long-term maintenance missions present a challenge for low-orbit heterogeneous area-to-mass ratio (AMR) microsatellite constellations due to inconsistent fuel consumption and carrying capacity. Based on the idea of cooperative control, fuel-rich satellites is properly increased in this paper assist fuel-starved saving fuel, so as optimize balance each satellite extend controllable life...

In order to achieve efficiencies in excess of 70% in transportation-scale engines, a mixed combustion/electrochemical strategy was developed in which a piston engine is coupled to a downstream fuel cell by way of a catalytic reformer. The piston engine serves to reform the fuel and extract some work by operating in a fuel-rich regime, the catalytic reformer serves to catalytically reform the ex...

Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Andrea Gutiérrez Name of the doctoral dissertation Noble Metal Catalysts in the Production of Biofuels Publisher School of Chemical Technology Unit Department of Biotechnology and Chemical Technology Series Aalto University publication series DOCTORAL DISSERTATIONS 140/2013 Field of research Industrial Chemistry Manuscript sub...

Large-eddy simulation (LES) of kerosene spray combustion in a model supersonic combustor with cavity flame holder is carried out. Kerosene is injected through the ceiling of the cavity. The subgrid-scale (SGS) turbulence stress tensor is closed via the Smagorinsky’s eddyviscosity model, chemical source terms are modelled by a finite rate chemistry (FRC) model, and a four-step reduced kerosene c...