Browse Publications Technical Papers 2003-01-2400
2003-07-07

Environmental Control System for Light Turbo Prop 2003-01-2400

Honeywell has developed a unique environmental control system (ECS) for light turbo-prop aircraft applications. The ECS consists of two integrated systems, an Air Cycle System (ACS) and a Vapor Cycle Cooling System (VCCS). A single controller interfaces with both systems, and provides control by monitoring temperatures within the environment. The valves and fans of the ECS are then adjusted to provide the necessary control to minimise the error between the actual and set temperatures. The controller specifically provides the following functions:
  • ACS control when selected on by the pilot
  • VCCS control when selected on by the pilot
  • Automatic ACS or VCCS control when selected by the pilot
  • System self test
The compressor used in the VCCS is a new generation compressor:
  • 28Vdc power supply current
  • Hermetical compressor technology
  • Brush-less DC motor
  • Analogical driving speed
This paper will present the design of the hybrid ACS/VCCS environmental control system and notably its unique characteristics - the compressor and control system.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Digital Control System for a Refrigerator Heat Pump for Spacecraft Environment

881044

View Details

TECHNICAL PAPER

Active Thermal Control Systems for Lunar and Martian Exploration

901243

View Details

TECHNICAL PAPER

A Sensor for Estimating the Liquid Mass Fraction of the Refrigerant Exiting an Evaporator

2000-01-0976

View Details

X