Young grey alder stands under 10 years of age that are growing on abandoned agricultural lands in Central Latvian lowlands were selected for this study. […]
Green energy from different feedstock processed under anaerobic conditions
The possible use of energy crops and aquaculture for bioenergy production has only recently become a research target, so there is little information on their […]
Determination of the phase separation temperature and the water solubility in the mixtures of gasoline with biobutanol and bioethanol
Original hydrocarbon composition, volatility, compatibility with materials, calorific value and stability of the mixture in the presence of water are monitored usually. This paper deals […]
Production of fermentation feedstock from lignocellulosic biomass: applications of membrane separation
The development of cost-efficient, highly productive technologies for fermentation feed production from lignocellulose biomass is still a challenge. In this paper, the production of fermentable […]
Profitability of hybrid aspen breeding in Latvia
Hybrid aspen (Populus tremuloides × P. tremula) has fast growth in climatic conditions of Northern Europe and relatively high wood quality. Therefore, breeding of it […]
The distillation characteristics of automotive gasoline containing biobutanol, bioethanol and the influence of the oxygenates
Bioethanol and fatty acid methyl esters are a regular part of the production of gasoline and diesel fuels, although in limited quantities. Introduction of bioethanol […]
Anaerobic digestion of vegetables processing wastes with catalyst metaferm
There are 54 active biogas plants in Latvia today. It is necessary to investigate the suitability of various biomasses for energy production. Maize is the […]
Formation of height increment of hybrid aspen in Latvia
Annual increment of hybrid aspen exceeds that of other tree species (including common aspen) in Baltic States. Notable (several-fold) differences in productivity between clones have […]
The analysis of the influence of biobutanol and bioethanol mixture with ethers on the vapour pressure of gasoline
In addition to widely known species automotive fuels that are currently on the market, there are many other chemicals which are used or can be […]
Comparison of technologic parameters of pellets and other solid fuels produced from various raw materials
The article relates results of experiments and problem studies, the main goal of which was comparing four alternatives of solid biofuels suitable for heating private […]