[A320] A320CBT 21章翻译

SYSTEM OVERVIEW 系统概述
The air conditioning system main function is to keep the air in the pressurized fuselage compartments at the correct pressure and temperature. In details, this system provides the following functions:
空调系统的主要功能是使在增压舱中的空气保持正确的压力和温度。具体
具有下述功能：
- cabin temperature control,
客舱温度控
- pressurization control,
增压控制
- avionics ventilation,
电子通风
- cargo compartment ventilation & heating (optional).
货仓段通风&加热（选装）
SYSTEM OVERVIEW-CABIN TEMPERATURE CONTROL 客舱温度控制
The Single Aisle family is equipped with two air conditioning packs located in the wing root area forward of the landing gear bay. The packs supply dry air to the cabin for air conditioning, ventilation and pressurization. The main component of each pack assembly is the air cycle machine.
单通道系列飞机配备有两个空调组件，他们被安装在翼身整流罩下、起落架舱前的位置。组件提供干燥的空气对客舱进行空调，通风和增压。每个组件的主要设备是一台空气循环机（ACM）。
Hot air from the pneumatic system is supplied to the pack through the pack Flow Control Valve (FCV). The FCV adjusts the flow rate through the pack and is the pack shut-off valve. During normal operation, the Air Conditioning System Controller (ACSC) calculates the flow mass demand and set the flow control valve in the necessary reference position.
来自气源系统的热空气通过组件流量控制活门（FCV）到达组件。FCV 负责调节进入组件的流量速率，它同样作为组件关断活门。通常的操作过程是由空调系统控制器（ACSC）计算所需流量并调节流量控制活门（FCV）到所需的位置。
The pack temperature control system controls the pack outlet temperature and sets its maximum and minimum limits. The system includes two ACSCs. Each ACSC controls one pack. To control the pack outlet temperature, the ACSC modulates the BYPASS VALVE and the RAM-AIR INLET doors.
组件温度控制系统控制组件出口温度并设定最大或最小温度限度。该系统包含两个ACSC。每个ACSC 控制一个组件。ACSC 通过调节旁通活门和冲压进气门达到控制组件出口温度的目的。