The goal of renewable energy is to replace production from fossil fuels. In that sense, forest biomass essential renewables. This article presents the results development reserves in fractions, increments and total above-ground coniferous stands (spruce, fir, pine, larch) during their economic cycle. experimental material comes 22 located mainly Central Slovakia, a lesser extent also Western Ea...

Parker’s initial insights from 1958 provided a key causal link between the heating of the solar corona and the acceleration of the solar wind. However, we still do not know what fraction of the solar wind’s mass, momentum, and energy flux is driven by Parker-type gas pressure gradients, and what fraction is driven by, e.g., wave-particle interactions or turbulence. SOHO has been pivotal in brin...

This paper presents an analysis of carbon credit earning by the Solar Energy Park (SEP) at I.I.T. Delhi, New Delhi, India. The solar energy park consists of a mud house, various hybrid photovoltaic thermal (PV/T) systems with stand alone photovoltaic (SAPV) power supply. The analysis is based on experimental and theoretical annual performance of each system. The life cycle cost analysis is base...

The sensitivity of the reflection of shortwave radiation over the Southern Ocean to the cloud properties there is estimated using observations from a suite of passive and active satellite instruments in combination with radiative transfer modeling. A composite cloud property observational data description is constructed that consistently incorporates mean cloud liquid water content, ice water c...

System cost reductions and development of standardised plug-and-function systems are some of the most important goals for solar heating technology development. Retrofitting hot water boilers in single-family houses when installing solar collectors has the potential to significantly reduce both material and installation costs. In this study, the TRNSYS simulation models of the retrofitting solar...

The time series of total solar irradiance (TSI) satellite observations since 1978 provided by ACRIM and PMOD TSI composites are studied. We find empirical evidence for planetary-induced forcing and modulation of solar activity. Power spectra and direct data pattern analysis reveal a clear signature of the 1.09-year Earth-Jupiter conjunction cycle, in particular during solar cycle 23 maximum. Th...

We show that solar neutrino experiments set an upper limit of 7.8% (7.3% including the recent KamLAND measurements) to the fraction of energy that the Sun produces via the CNO fusion cycle, which is an order of magnitude improvement upon the previous limit. New experiments are required to detect CNO neutrinos corresponding to the 1.5% of the solar luminosity that the standard solar model predic...