Method for estimating particulate matter settlement amount in aircraft environment control system based on universal simplified model

Abstract

The invention discloses a method for estimating the particulate matter settlement amount in an aircraft environment control system based on a universal simplified model. The method comprises the steps of establishing an aircraft environment control system universal simplified model by taking an environment control system of a regional aircraft as a prototype, wherein the model comprises an environment control system inlet pipe section, an auxiliary power system, a first air pipe, an air conditioning package, a second air pipe, an air mixing cabin and an air distributor, wherein the air distributor comprises a main pipeline, the main pipeline is provided with a plurality of branch pipes communicated with the main pipeline, the tail end of each branch pipe is provided with an air diffuser; and then carrying out zoning on the model, determining relevant parameters, and finally calculating the particulate matter settlement amount of each zone in the aircraft environment control system universal simplified model. The method disclosed by the invention can be used for studying settlement and cabin penetrating conditions of particulate matters in the aircraft environment control system, and provides a way for operation maintenance and cabin environment assessment of the aircraft environment control system.

Description

technical field [0001] The invention belongs to the field of air quality and pollutant transmission in closed spaces, and in particular relates to a method for calculating the sedimentation of particles in each part of the aircraft environmental control system based on a general simplified geometric model of the aircraft environmental control system. Background technique [0002] The environmental control system of civil aviation passenger aircraft provides a safe, comfortable and healthy environment for passengers and crew members by delivering air to the cabin. Half of the air sent into the passenger cabin comes from the outside. This part of the air enters the aircraft's environmental control system through the air-conditioning system of the bridge, the ground air-conditioning vehicle, the engine or the auxiliary power system with similar components to the engine, and finally enters the cabin. Bridge air-conditioning systems, ground air-conditioning vehicles, and aircraft...

AI Technical Summary

Problems solved by technology

The particles settled in the system will not only cause the air circulation equipment in the environmental control system to malfunction and cause system wear and tear, but also increase the load of the high-efficiency air filter in the air recirculation system, and finally greatly shorten the service life of the filter , affects the normal operation of the entire environmental control system, and the particulate matter entering the cabin will also pollute the air quality in the cabin, affecting the health of passengers and crew members

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