Abstract: A process for supervising an air conditioning system of a railway vehicle. The process comprising the following steps: a) after starting the air conditioning system, measuring physical properties relative to the refrigerant; b) from the physical properties measured during step a), calculating thermodynamic properties; c) from the thermodynamic properties calculated during step b), calculating the density, optionally averaged, of the refrigerant inside each component of the air conditioning system; d) using manufacturer data, which includes the dimensions of each component of the air conditioning system, calculating the passage volume of the refrigerant inside each component of the air conditioning system; e) using the values calculated in steps c) and d) to calculate the total mass of refrigerant contained inside the air conditioning system; and f) comparing the total mass of refrigerant calculated in step e) with the total mass of refrigerant originally contained inside the air conditioning system.

Abstract: An air handling system (1) for a land transport vehicle, in particular a railway vehicle (M) is disclosed. The system includes: one or more air handling units (2) distributed within the vehicle (M); a cooling machine (4) that supplies frigories to the air handling units; and a frigories storage unit (8) that is capable of being loaded by the cooling machine and of supplying frigories to the air handling units when the vehicle is travelling in an enclosed or partially enclosed space. When the vehicle (M) is travelling in the open air, the cooling machine (4) supplies frigories to the air handling units (2) and loads the frigories storage unit (8) if a surplus of frigories is produced, by discharging into the exterior of the vehicle (M) the heat extracted from an interior volume of the vehicle.

Abstract: A process for supervising an air conditioning system of a railway vehicle. The process comprising the following steps: a) after starting the air conditioning system, measuring physical properties relative to the refrigerant; b) from the physical properties measured during step a), calculating thermodynamic properties; c) from the thermodynamic properties calculated during step b), calculating the density, optionally averaged, of the refrigerant inside each component of the air conditioning system; d) using manufacturer data, which includes the dimensions of each component of the air conditioning system, calculating the passage volume of the refrigerant inside each component of the air conditioning system; e) using the values calculated in steps c) and d) to calculate the total mass of refrigerant contained inside the air conditioning system; and f) comparing the total mass of refrigerant calculated in step e) with the total mass of refrigerant originally contained inside the air conditioning system.

Abstract: An air conditioning device is provided which has a primary heat pump circuit having at least one primary heat exchanger with the air from the compartment, a primary compressor, a second primary heat exchanger with the outside air, and a primary expander device, and a heat storage reservoir, connected to the primary circuit, in parallel with said first primary heat exchanger with the air from the compartment. The air conditioning device also has a secondary heat pump circuit, including a first secondary heat exchanger with the air from the compartment, a secondary compressor, a second secondary heat exchanger with the air from the outside, and a secondary expander device. The heat storage reservoir is connected to the secondary circuit, in parallel with the first secondary heat exchanger with the air from the compartment.

Abstract: An air handling system (1) for a land transport vehicle, in particular a railway vehicle (M) is disclosed. The system includes: one or more air handling units (2) distributed within the vehicle (M); a cooling machine (4) that supplies frigories to the air handling units; and a frigories storage unit (8) that is capable of being loaded by the cooling machine and of supplying frigories to the air handling units when the vehicle is travelling in an enclosed or partially enclosed space. When the vehicle (M) is travelling in the open air, the cooling machine (4) supplies frigories to the air handling units (2) and loads the frigories storage unit (8) if a surplus of frigories is produced, by discharging into the exterior of the vehicle (M) the heat extracted from an interior volume of the vehicle.

Abstract: The air conditioning device (10) according to the invention comprises a primary heat pump circuit (12), comprising at least one primary heat exchanger (14) with the air from the compartment, a primary compressor (16), a second primary heat exchanger (18) with the outside air, and a primary expander device (20), and a heat storage reservoir (46), connected to the primary circuit (12), in parallel with said first primary heat exchanger (14) with the air from the compartment. The air conditioning device (10) comprises a secondary heat pump circuit (12?), comprising a first secondary heat exchanger (14?) with the air from the compartment, a secondary compressor (16?), a second secondary heat exchanger (18?) with the air from the outside, and a secondary expander device (20?). The heat storage reservoir (46) is connected to the secondary circuit (12?), in parallel with said first secondary heat exchanger (14?) with the air from the compartment.