This article considers the possibilities of using solar energy for supply residential and communal facilities in winter period year. The efficiency and, as a result, amount received depends on intensity radiation per unit area, therefore, to evaluate prospects use energy, modeling throughout year particular during heating was carried out. When radiation, three components falling an inclined sur...

This paper explains the problems that are due to poor Power Quality in electrical systems and shows their possible financial consequences. Power Quality is characterized by parameters that express harmonic pollution, reactive power and load unbalance. The best possible solutions to these problems are reviewed and their control systems are elaborated on. Solutions present in the field are explai...

Public installations have the opportunity to influence many people due to their location and the vast amount of people that are exposed to them. New technologies and materials bring new opportunities to the forms of public installations. Many of these installations are interactive. This paper investigates how interaction with public installations affects its users by evaluating the experience o...

Abstract Deploying photovoltaic installations to cover the electrical energy requirements of home and industrial consumer is both a national an international trend. The aim research analyse efficiency installation based on recordings measurements. In this work, we present case study for 40 kW deployed consumer. For period eleven days, measured levels that absorbed from network installation. We ...

The risk of explosion becomes significant when, in the industrial field, flammable substances such as gases, vapours, mists, dusts, lint and fibres may be present. If they are present sufficient quantity, is imminent. On other hand, measure shutting down technical equipment, context presence explosive atmospheres, not an acceptable all situations. As examples parts installations that have safet...

The activity of evaluation and verification industrial ventilation installations has a strong preventive role in terms explosion risk mainly due to the fact that three determining elements can lead an phenomenon, determine presence two namely fuel (gases, vapours, dusts, mists) source initiation (hot surface, flame, sparks mechanical origin, electrical sparks, static electricity, etc.). develop...