Method of managing the operation of a refrigerated truck for transporting heat-sensitive products by modifying the refrigeration power

摘要

A method for managing the operation of a refrigerated truck for transporting heat-sensitive products, of the indirect-injection type, in which the parameter ΔT=_{Tair inlet}−T_setpoint(T_{air inlet}: temperature of the air coming into contact with the heat exchanger internal to the truck as a result of the action of the fan, T_setpoint: temperature to be set in the chamber inside the truck) is determined in real time and in which if ΔT is greater than an upper setpoint value ΔT_{setpoint H}, a rapid-pressurization (RMP) circuit is activated to vaporize some cryogen and thus increase the pressure in the head of gas above the reserve of cryogen of the truck.