Cabin thermal control system

Abstract

The present finding relates to a system for controlling a cabin at least thermally. The system ( 10 ) with energy recovery includes a first air treatment unit ( 20 ) suitable to collect external air and supplying air at least thermally controlled (air treated) in the cabin ( 12 ), a second air treatment unit ( 30 ) suitable to collect exhausted air from the cabin ( 12 ) and heat exchange means ( 43 ) configured to exchange heat between exhausted air and external cabin air supply. The system also includes air humidification means ( 45 ) suitable to humidify the exhausted air, to reduce, using evaporation enthalpy, the preset temperature of the exhausted air, and to supply the exhausted humidified air to the heat exchange means in order to optimize the recovery of energy. The finding also relates to an exhausted air treatment unit and to a method to control a cabin at least thermally.

1 . System to control a cabin, at least thermally including
 a first air treatment unit ( 20 ) suitable to collect external air, treat external air and supply to the cabin ( 12 ) at least thermally controlled;   a second air treatment unit ( 30 ) suitable to extract from the cabin exhausted air at a set temperature;   heat exchange means ( 43 ) configured to exchange heat between the exhausted air and external air as it is collected; characterized by whether second air treatment unit ( 30 ) includes   air humidification means ( 45 ) suitable to humidify exhausted air, to reduce, using evaporation enthalpy, the temperature of said exhausted air and supply to exhausted air humidified in said heat exchange means.   
     
     
         2 . System according to  claim 1  characterized by whether said heat exchange means ( 43 ) are included in said second air treatment unit ( 30 ). 
     
     
         3 . System according to  claim 1  characterized by whether said second air treatment unit ( 30 ) includes further
 extraction air treatment means ( 41 ) suitable to extract the exhausted air, filter it and supply it to said air humidification means.   
     
     
         4 . System according to  claim 1  characterized by whether said first air treatment unit ( 20 ) includes
 at least a cooling section ( 20   c ) suitable to cool the air coming from said heat exchange means.   
     
     
         5 . System according the  claim 4  characterized by whether said first air treatment unit ( 20 ) includes at least a section included in the group of
 a ventilation section ( 20   a );   an air heating section ( 20   b );   a humidification section ( 20   d );   an air post-heating section ( 20   e );   
     
     
         6 . System according to  claim 1  characterized by the fact that it includes an external air filtering section ( 47 ) suitable to filter the external air to supply to the cabin ( 12 ) through the first air treatment unit and/or an exhausted air filtering section ( 49 ) suitable to filter the humidified exhausted air employed by said heat exchange means ( 43 ) and to discharge the humidified exhausted air outside the cabin. 
     
     
         7 . Exhausted air treatment unit for a system to control at least thermally a cabin, including
 air treatment means ( 41 ) which may be connected to the cabin and are suitable to extract exhausted air at a preset temperature;   heat exchange means ( 43 ) configured to exchange heat between exhausted air and external air; characterized by   air humidification means ( 45 ) suitable to humidify said exhausted air, to reduce, using evaporation enthalpy, the temperature of said exhausted air and supply to the humidified exhausted air into said heat exchange means ( 43 ).   
     
     
         8 . Exhausted air treatment unit, according to  claim 7 , characterized by whether said heat exchange means ( 43 ) are of the cross-flow or rotating type. 
     
     
         9 . Method to control at least thermally a cabin, including the following phases:
 collect external air;   treat at least thermally said external air and supply, following treatment, air at least thermally controlled to the cabin;   collect from the cabin exhausted air at a preset temperature;   perform a heat exchange between the exhausted air and the external air;   
       characterized by the fact that the exhausted air collection phase includes the phase of
 humidification of the exhausted air so as to reduce, using evaporation enthalpy, the preset temperature of said exhausted air. 
 
     
     
         10 . Method according to  claim 9  characterized by the fact that the exhausted air collection phase further includes the phase of
 filtering said exhausted air.   
     
     
         11 . Method according to  claim 9  characterized by the fact that said phase of treating at least thermally said external air includes the phase of
 cooling the air before supplying it to said cabin.   
     
     
         12 . Method according to  claim 9  characterized by the fact that it also includes at least one of the phases of
 filtering the external air to supply to the cabin; and/or   filtering the humidified exhausted air and discharging it outside the cabin.