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Lowering energy consumption in the residential sector is one of the main priorities in the European Union. This can be achieved by increasing the thermal insulation of the buildings and using renewable sources for energy. One of the most common solutions is the use of heat pumps to produce thermal energy for heating / cooling indoor spaces and for domestic hot water. The geothermal heat pumps are used, but with increased efficiency of air/water heat pumps, they become effective solutions. This work studies the eff...

Nowadays, after intervals of time without rainfall, heavy rain with very high flow rates in very short time are increasingly more often. If extreme rainfall events, storm sewer networks can not take storm water flows, which frequently occurs with flood damage large, often with loss of life. Duet o the fact that rainwater flows to the emissaries in time, the water table drops. Analyzing the frequency of extreme phenomena rainfall and using climate scenarios we can adapt technical regulations related to sizing colle...