Efficiency of a solar collector system for the public building depending on its location

Abstract

Due to a technologic progress, a growth in the renewable energy markets including a high number of manufactures coming to being, the Renewable Energy Sources (RES) are both a tool for mitigating climate changes and investments that can provide direct economic profits and reduce a political or economic dependence resulting from import of fossil fuels. One of the many key solutions toward fulfilling the global increasing demand for energy and reduction of CO 2 emissions is applying solar technologies. This paper presents the results of the analysis conducted for a small public office building located in Bialystok (Poland), where solar collectors were considered as the RES for domestic hot water (DHW) system, on the understanding that existing oil boiler would be an additional source. Low values of recommended water consumption in office buildings resulted in a low energy demand. However, concerning a potential of all office governmental buildings in Poland, it would be possible to reduce CO 2 emission by 17,248 tonnes. In the comprehensive analysis, the same building in two more locations (Cordoba (Spain) and Kaunas (Lithuania)) was considered using simulation tools delivered within the framework of VIPSKILLS project as well as EnegyPlus software. The results allow to compare the mean monthly efficiency of systems or number of collectors necessary to deliver similar amount of solar energy.

Government Subsidies and Enterprise Innovation: Evidence from China's Photovoltaic Industry

“…With the intensification of energy shortage and environmental pollution, renewable energy has attracted worldwide attention [1][2][3][4]. e solar photovoltaic (PV) power is abundant, clean, and convenient and also has been considered as one of the most promising renewable energies [5,6]. Due to the ever-increasing energy and environmental pressures, China is switching to focus more on fostering the PV industry.…”

Current trends in economy, sustainable development, and energy: a circular economy view

“…Furthermore, an important application is the efficiency of the solar collector installation in buildings. In this way, the next paper, Analysis of an efficiency of the solar collector installation in a small public building in Poland, Lithuania and Spain: a case of study by Krawczyk et al (2019), analyses that issue in some small public buildings in Poland, Lithuania and Spain, in the bases of a case study. In most European countries, a solar collector market is at the stage of continuous development; however its expansion rate differs.…”

Analysis of the Use of RES for Heating and Cooling in Different Climatic Zones in Poland and Spain

“…The amount of purchased energy decreased by 6756 kWh per year and emission of carbon dioxide decreased by 2.4-3.6 mg per year. Systems with solar collectors in Poland and Spain were compared by Krawczyk et al [5]. Alshehri et al [6] performed the analysis of vertical geothermal heat pump system in hot dry climate.…”