A method and system for ventilating and heating aircraft cargo compartment

Abstract

The invention provides a system for ventilating and heating an aircraft cargo compartment, the system comprising: a first temperature sensor for detecting the temperature in the cargo compartment; a heating fan; a heat exchanger; a ventilation fan; the lower part of the cargo compartment floor; and a controller, which is used to determine the rotation speed of the heating fan and start the heating fan when the temperature in the cargo compartment is lower than the temperature setting value; wherein, the heating fan passes hot air into the hot side of the heat exchanger to heat air from within the cargo space and the area around the cargo space passing through the cold side of the heat exchanger to produce ventilation air that heats the cargo space; and wherein the heat passing through the heat exchanger The hot air from the side is distributed to the cargo tank bottom via the heating element to heat the cargo tank bottom, and the ventilation air from the heated cargo tank is distributed into the cargo tank via the ventilation fan to heat the cargo tank bottom. The cargo tank is heated.

Description

technical field [0001] The invention relates to a method and a device for ventilating and heating aircraft cargo compartments. Background technique [0002] Due to the wide range of commercial aircraft operating, special operating environment, and large changes in the external environment, when the aircraft is in the cruising state, the temperature in the cargo compartment will drop as the external temperature drops sharply. Under normal cruising conditions, the air temperature outside the aircraft is between -30°C and -70°C. Since there are no heating devices and organisms inside the cargo compartment, if the cargo compartment is not ventilated and heated, the temperature of the aircraft cargo will drop below 0°C. Live animals would not be able to withstand such low temperatures for long periods of time if they were to be transported in the cargo hold of an aircraft. Therefore, when the aircraft has the requirement of transporting living things, the cargo compartment of th...

AI Technical Summary

Problems solved by technology

Both of these methods require the consumption of electrical power of the aircraft or hot trim air from the engine, which will eventually indirectly increase the fuel consumption of the aircraft

In addition, these two cargo hold heating methods are affected by the cargo loaded inside the cargo hold, the ventilation air circulation is not smooth, the heating efficiency of the cargo hold is low, the heat dissipation at the bottom of the hold is large, and the temperature uniformity in the hold is poor

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