In urban forestry and greening millions of tons of lignocellulosic waste is produced every year. Although lignocellulosic materials are considered one of the most promising […]
Case study of increasing photovoltaic energy solar fraction in a conventional office building in northern latitudes
Current trends in planning office buildings are moving towards reducing primary energy consumption for heating, hot water heating and cooling. Availability of the solar energy […]
Antioxidant studies for animal-based fat methyl ester
The aim of this study was to test an antioxidant, BioSineox, for animal-based fat methyl ester, AFME, in order to determine the optimal concentration of […]
Cleaner production in biowaste management
The article provides a study concerning possible future developments in biowaste management in Latvia. In the article, planning, impact assessment, implementation and improvement phases, as […]
Using steam explosion pretreatment method for bioethanol production from floodplain meadow hay
This article investigates influence of the steam explosion pretreatment method at different temperatures on sugar conversion rates and bioethanol production efficiencies from floodplain meadow hay. […]
Analysis of economical, social and environmental aspects of agroforestry systems of trees and perennial herbaceous plants
The aim of this study was to determine the economic, social and environmental aspects, that promote choosing an agroforestry system and continuing agricultural production instead […]
The effect of biofuels on the quality and purity of engine oil
The European Union aims to promote the use of biofuels and thus set a commitment to the expansion of biofuels in transport. Biofuels replace fossil […]
Analysis of physical and mechanical properties and of gross calorific value of Jatropha curcas seeds and waste from pressing process
The research was performed with an aim to investigate physical and mechanical properties and a gross calorific value of Jatropha curcas seeds and particular products […]
Deviations between wind speed data measured with nacelle-mounted anemometers on small wind turbines and anemometers mounted on measuring masts
Modern wind turbines with active yaw and pitch control rely in their operation onreal-time wind speed data, which is used for the automatic control operations. […]
Experimental pilot device for thermal analysis of biomass co-firing
The share of biomass in the transformation sector of Latvia accounts for only 15%, at the same time natural gas share in transformation sector is […]