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Electrical and Electronic Equipment Cooling in Commercial Transports
- Aerospace Standard
- AIR64B
- Reaffirmed
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This document considers the cooling of equipment installed in equipment centers, which usually consist of rack-mounted equipment and panel mounted equipment in the flight deck. In instances where these two locations result in different requirements, these are identified. For purposes of this document, the cooled equipment is referred to generally as E/E equipment, denoting that both electrical and electronic equipment is considered, or as an E/E equipment line-replaceable-unit (LRU). The majority of cooled equipment takes the form of LRUs. This document primarily relates to E/E equipment which is designed to use forced air cooling in order to maintain the equipment within acceptable environmental limits, in order to maintain equipment operating performance (within acceptable tolerances), and to maintain reliability. Cooling may be applied internally or externally to the case of the item of E/E equipment. There are also E/E equipment items which are cooled by natural convection, conduction, and radiation to the surrounding environment.
Specification requirements, system design considerations, component design, and system testing are described. Also described are the analysis and test considerations for the thermal design of the avionic equipment. The discussion of supplementary cooling systems includes consideration of a refrigeration system.
Recommended Content
Aerospace Standard | Heat Sinks for Airborne Vehicles |
Aerospace Standard | Air Conditioning Systems for Subsonic Airplanes |
Aerospace Standard | Aircraft Fuel Tank Inerting Systems |
Topic
Data Sets - Support Documents
Title | Description | Download |
---|---|---|
TABLE 1 | Heat Load Allocation Guide |
Issuing Committee
AC-9 Aircraft Environmental Systems Committee
Furthers the advancement of technology related to the research, design, test and utilization of aircraft environmental and anti-icing/deicing systems. Develops and updates standards, recommended practices, and information reports contributing to the quality, economy, and safety of commercial and military aircraft.
Reference
Number | Title |
---|---|
AIR1812 | ENVIRONMENTAL CONTROL SYSTEMS LIFE CYCLE COST |
AIR85 | This document is not part of the subscrption. |
AIR851 | O-RING TENSION TESTING CALCULATIONS |
ARINC404A | Air Transport Equipment Cases and Racking |
ARINC408A | AIR TRANSPORT INDICATOR CASES AND MOUNTING |
ARINC600 | This document is not part of the subscrption. |
ARINC601 | CONTROL/DISPLAY INTERFACES |
ARINC728 | AVIONICS REFRIGERATION COOLING SYSTEM |
ARP987 | THE CONTROL OF EXCESS HUMIDITY IN AVIONICS COOLING |
ASHRAE STANDARD 52 | This document is not part of the subscrption. |
ASHRAESTANDARD5 | This document is not part of the subscrption. |
RTCA/DO-160C | This document is not part of the subscrption. |
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