SCENARIOS OF REGIONAL POWER SYSTEM EXPANSION FROM SOUTHERN OF BIHOR COUNTY BASED ON THE EXPLOITATION OF RENEWABLE ENERGY SOURCES

The paper relates to the analysis of the local RES potential for the installation of power plants to allow for the extension of the regional power system for a site located in the southern part of the Bihor county, in the perimeter and the vicinity of the cities of Vaşcău, Nucet and Ştei. There are highlighted aspects of the current state of regional valorisation of renewable energy resources and possibilities for interconnection and connection to the Power System (PWS), for the optimal supply of electricity to consumers. A comparative analysis of the advantages and impediments generated by the implementation of local energy projects based on RES, focusing especially on wind energy, is developed and presented. At the end of the paper are presented the recommendations regarding the opportunity of using the RES and conclusions resulting from the study underlying that work

PROBABILISTIC APPROACH OF STABILIZED ELECTROMAGNETIC FIELD EFFECTS

The effects of the omnipresence of the electromagnetic field are certain and recognized. Assessing as accurately as possible these effects, which characterize random phenomena require the use of statistical-probabilistic calculation. This paper aims at assessing the probability of exceeding the admissible values of the characteristic sizes of the electromagnetic field - magnetic induction and electric field strength. The first part justifies the need for concern and specifies how to approach it. The mathematical model of approach and treatment is presented in the second part of the paper and the results obtained with reference to 14 power stations are synthesized in the third part. In the last part, are formulated the conclusions of the evaluations

INTERIOR ROOMS VENTILATION SYSTEM SIMULATION

In this paper we will present the results of a simulation of an interior ventilation system which distributes fresh air in 2 office rooms. The aim is to study the distribution of the temperature inside the 2 rooms in the first seconds after the system starts. We analyzed the velocity and the temperature of the air in different scenarios. Also we are interested in finding the correct velocity which should be used by the system, in order not to determine a sudden temperature change in the room. The study is time dependent, and was simulated using Comsol 5.0 (demo version)