Romanian Academy of Technical Sciences (ASTR)

Romanian Academy of Technical Sciences (ASTR)
2013
The paper presents the authors' theoretical and experimental research in the field of numerical simulation of fluid transients from the pipelines of the high head hydropower units, used for frequency control in large power systems including wind and solar unpredictable energy sources.

Romanian Academy of Technical Sciences (ASTR)
2013
The paper proposes a solution of UPQC (Unified Power Quality Conditioner) type to compensate the voltage variations and to provide an actually constant voltage at the terminals of the users with sensitive receivers. The experimental study performed for the developed installation emphasized good response characteristics both in normal and disturbed operating conditions.

Romanian Academy of Technical Sciences (ASTR)
2013
The paper presents the aim and objectives of modernizing the energy system of current buildings as well as of designing and executing new buildings with high Energy and Environmental Performance. It is necessary to refer to the European Strategy (Europe 2020) and to the European Directives, transposed into the national legislation, while the technical and economic solutions to the objectives resulting from the above mentioned purpose complete the dimension of the logical structure of this procedure for reaching the objectives.