Aircraft Pre-conditioned Air Unit Solution
Aircraft Pre-conditioned Air Unit (PCA) is a specialized air conditioning device on the ground designed to provide fresh air that has been filtered, pressurized, dehumidified, and cooled (or heated) for aircraft cabins parked on the ground.
PCA
GPU
APU
- High energy efficiency and low maintenance requirements, lower long-term operational costs.
- Low noise and low emissions, green solution for airport.
- Low energy consumption, better economic benefits.
- Repid cooling with fresh air, better passenger comfort, short cabin preparation waiting.
- Power only for aircraft lighting, electric and electronic appliances.
- Unable to drive APU or PCA, unable to deal with the cabin cooling.
- Diesel engine has low efficiency, high cost, and most importantly air polution.
- Powered by aviation fuel, running cost is very high.
- Cooling through air compressing and condensing, cooling effect is poor.
- Generates noise, affecting cabin comfort.
- Generates emissions(CO2, NOX, etc) during operation, causing negative environmental impacts.
- Maintenance cost is high and easy to cause safety risks.
PCA Industry Standards
Scope of Application
Technical Requirements
Safety & Reliability
Testing
Method
Maintenance & Overhaul
- Adaptation to the environment factors of temperature, humidity and wind speed
- Performance requirements
- Electrical requirements
- Material requirements
- Corrosion resistance
- Mechanical strength
- Operating lifespan
- Test conditions include dry bulb temperature on the evaporator side; relative humidity on the evaporator side; dry bulb temperature on the condenser side; power supply; air volume; static pressure
- Test project includes start operation; air tightness of refrigeration system; airflow, external static pressure, input power; customized cooling capacity; maximum cooling operation; minimum cooling operation; noise
- Testing standards
Revolution of Shenling PCA Technology
2023~Now
DC inverter PCA, the 1st in the industry
Variable frequency control
PCB refrigerant cooling technology
Frost inhibiting technology
±1℃ temperture control
Higher energy efficiency
2019~Now
Cold storage PCA
COP ≥ 3.95
Continuous technological innovation to serve green airport
2017~Now
Low-temp. evaporative chiller
+high-pressure fresh air AHU
COP > 3.5, highest in the industry
Innovative energy-saving applications in the industry
2017~Now
2nd generation of DX PCA
COP > 2.15, the highest in the industry
With comprehensive performance optimization & improvement
2006~2016
1st generation of DX PCA
The 1st PCA manufaturer in China
COP is appr. 1.6
Shenling serving over 50 airports with over 2300pcs PCA
Over 70% market share on PCA in China
No.1 PCA manufacturer in the world
Rapid Cooling
In the typical condition, PCA can reach full output within 30s after startup and cool down the cabin in 3 min, which can largely shorten the traditional cooling time and improve passenger comfort.
Energy Saving
The unit contains 4 to 6 of compressors and refrigerant circuits, which can more precisely adjust the running.
Smart Control
The unit can be equipped with an IoT platform, connecting the unit with the management system to enable remote monitoring, intelligent billing, real-time data updates.
High Adaptability
The unit offers customized services to handle various operating conditions such as high altitude, high salt spray, and high temperature and humidity environments.
Easy Maintenance
The unit is is designed with 3D piping and wiring layout, with strong sense of keeping maintenance space inside. It can facilitate maintenance, avoiding the need to disassemble the unit before repairs and reducing maintenance time.
High Reliability
The entire product line adheres to the highest quality standards, with reliable core components to avoid frequent replacement and reduce maintenance costs.