Group Italian Heat Pumps

Group Leader: Dr. Fernando Pettorossi - Assoclima
Within Assoclima, the Group 10 is represented by major national and international manufacturers of heat pumps.

Product
The heat pumps are devices used for the heating of a fluid - air or water - that transform the heat into useful energy (energy of low enthalpy), otherwise unused, present in the environment.
To function, a heat pump requires energy, but one that moves within the environment in the form of heat is greater than it consumes, thus ensuring a considerable savings. The heat pump uses, in fact, the heat stored in the air free, unlimited, to surface water, in groundwater and soil.
The heat pump must therefore its name to the fact of being able to transfer heat from a low temperature source to a well at a higher temperature, such as a pump raises a fluid from a lower level to a higher one.
The technology of heat pumps is known and used since the early 70, at the time of the first oil crisis, and today is present on the market with different system solutions that make it easy to apply and suitable for all needs, ranging from most types simple, using air as the external source, to the most complex, with probes in the soil or in groundwater.
The heat pumps are distinguished by the cold source and the heat sink using. May therefore be of the type air-to-air, air-water, air-water, water-water, based on the combination of the two fluids which exchange heat with the external source and with the internal environment.
Another type is that of geothermal heat pumps (Ground Source Heat Pump), that take advantage of the low enthalpy heat of the ground.
A very economical solution from the point of view of the plant and particularly suited to our climatic zones is one that uses the air as the external source, which has the advantage of being available anytime, anywhere; a limit of this type is given by the fact that the power performance of the heat pump decreases with decreasing temperature.
Is decidedly more advantageous to employ, as the cold source, the air extracted from the premises, which must still be renewed. The water - groundwater, river, lake, sea - as a cold source ensures consistent performance and better than the air source as it is not affected by outside weather conditions, however, requires works of withdrawal and discharge subject to legislative constraints .
The soil as a cold source provides good energy performance and has the advantage of being subjected to minor changes.

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