SAE AIR1168/3-1990
Aerothermodynamic Systems Engineering and Design

Standard No.

SAE AIR1168/3-1990

Release Date

1990

Published By

Society of Automotive Engineers (SAE)

Status

Be replaced

Replace By

SAE AIR1168/3-2011

Latest

SAE AIR1168/3A-2019

Scope

This section presents methods and examples of computing the steady-state heating and cooling loads of aircraft compartments. In a steady-state process the flows of heat throughout the system are stabilized and thus do not change with time. In an aircraft compartment, several elements compose the steady-state air conditioning load. Transfer of heat occurs between these sources and sinks by the combined processes of convection, radiation, and conduction in the following manner: 1) convection between the boundary layer and the outer airplane skin; 2) radiation between the external skill and the external environment; 3) solar radiation through transparent areas directly on flight personnel and equipment and on the cabin interior surfaces; 4) conduction through the cabin walls and structural members; 5) convection between the interior cabin surface and the cabin air; 6) convection between cabin air and flight personnel or equipment; and 7) convection and radiation from internal sources of heat such as electrical equipment.

SAE AIR1168/3-1990 history

• 2019 SAE AIR1168/3A-2019 SAE Aerospace Applied Thermodynamics Manual Aerothermodynamic Systems Engineering and Design
• 2011 SAE AIR1168/3-2011 Aerothermodynamic Systems Engineering and Design
• 1990 SAE AIR1168/3-1990 Aerothermodynamic Systems Engineering and Design
• 1989 SAE AIR1168/3-1989 Aerothermodynamic Systems Engineering and Design

SAE AIR1168/3-1990 -All Parts