Conditioning and/or heating plant and process of controlling the same plant

A plant for conditioning and/or heating, the plant comprising:

• at least one circuit configured for distributing a carrier fluid, the circuit comprising
• at least one delivery line of the carrier fluid,
• at least one return line the carrier fluid, and
• a predetermined number of channels directly and/or indirectly connected to said delivery line and said return line and configured for supplying respective environments to be conditioned and/or heated,
• at least one heat treatment central group placed on the circuit and configured for varying temperature in the carrier fluid, a hydraulic head imposed to the carrier fluid across the heat treatment central group, and/or the flow rate in the carrier fluid,
• for each of said channels, the plant further comprising:
• at least one respective heat exchange unit operating on each of said channels for supplying a respective environment to be conditioned and/or heated,
• at least one flow-rate regulator operating on each of said channels,
• at least one heat sensor configured for detecting a measured value of a thermal parameter depending on the temperature difference between a first section of each channel upstream from said heat exchange unit and a second section of each channel downstream from the same heat exchange unit, and
• at least one hydraulic sensor configured for determining a measured value of a flow parameter, the flow parameter being selected from a group consisting of:
• the flow rate passing through the flow-rate regulator,
• the pressure difference between a first section of each channel upstream from said flow-rate regulator and a second section of each channel downstream from the same flow-rate regulator, and
• the pressure difference between a first section of a channel upstream from a calibrated orifice and a second section of the same channel placed downstream from the calibrated orifice, the calibrated orifice being placed on each channel, upstream from each said flow-rate regulator, and
• at least one control device communicating with said sensors and active on each flow-rate regulator and on said heat treatment central group,
• wherein the control device is configured to execute a controlling process, the controlling process comprising:
• receiving at least one desired value of an energy parameter of the carrier fluid, the energy parameter selected from a group consisting of:
• the thermal power released by the carrier fluid passing through each heat exchange unit,
• the thermal power received by the carrier fluid passing through each heat exchange unit,
• the heat released from the carrier fluid in a predetermined time interval during the passage through each heat exchange unit, and
• the heat absorbed by the carrier fluid in a predetermined time interval during the passage through each heat exchange unit,
• calculating, for each heat exchange unit, an effective value of said energy parameter as a function of the measured value of the thermal parameter and of the measured value of the flow parameter,
• comparing, for each heat exchange unit, said desired value of the energy parameter with said effective value of the same energy parameter,
• determining if, as a result of comparing, for at least one heat exchange unit, the effective value of the energy parameter deviates more than a predetermined threshold from the desired value of the same energy parameter, and
• if it is determined that, for at least one heat exchange unit, the effective value of the energy parameter deviates more than a predetermined threshold from the desired value of the same energy parameter, commanding a variation of at least one operative condition of a component, the component being selected from a group consisting of:
• the flow-rate regulator present on the channel of the heat exchange unit,
• a heat exchange modulator of said heat exchange unit, and
• the heat treatment central group.