Abstract

The invention of pump with dual supply until to the impeller has allowed developing different ways to produce hydroelectric energy with water recycling But those which guarantee the best performance with reduced dimensions are those which use pressurized water tanks with compressed air In fact in the case of a hydraulic system with pressurized autoclave 1 we can not use the energy of the water surface position of an open basin which produces kinetic energy in the descending pipe which feeds the pump and turbine but we can exploit the compressed air pressure that pushes the pressurized water directly in a turbine or a pump used as a turbine 2 and discharging in a reservoir at atmospheric pressure 3 In this case we exploit the pressure drop and the flow rate through the turbine while the pump with double separate supply until to the impeller immediately re-inserting the water in the pressurized tank 1 from the suction side of one of the two feeding inlets and by recycling simultaneously with the other feed the pressurized water inside the tank allows to maintain constant the water level saving the energy that would be necessary for the restoration of the pressure of the air cushion and that to win the hydrostatic pressure consuming only the energy required for water circulation within the accumulated volume of water The energy sources of this plant are the compressibility of the air and the noncompressibility of water Pairing two identical systems one for hot water and one for cold water in our homes we can produce energy for twenty-four hours a day and three hundred sixty-five days per year distributing the hot or cold water to the heating system cooling and services but without gas boilers and even solar panels in part by reducing energy production only in the pickup phase of water consumption and for heating or cooling of the apartment The energy produced by pressurized domestic hydroelectric plants will be about ten times greater