Open Access
Subscription Access
Thermal Design of Attendant Control Panel for Avionics through CFD
Attendant Control Panel (ACP) is a wall mounted unit which mainly integrates several Boeing 737NG system functions into a single control panel to provide the flight attendants with the ability to monitor and control cabin features. Thermal design has been developed to remove heat from the ACP through conduction and natural convection. Standoffs in the enclosure provided the effective conduction path to transfer heat from PWA (Printed Wire Assembly) to chassis. All critical device temperatures in the ACP are able to maintain well below the allowable temperature limit of 105oC without forced cooling. CFD(Computational Fluid Dynamics) simulations have been carried to analyze and improve thermal phenomena inside the ACP for three operating conditions namely normal operating (30oC), high operating (50oC) and short range operating (50oC to 60oC for 30 min) , using ANSYS Icepack, commercial CFD software. The thermal design of ACP is developed in this paper to maintain its operating temperature within the limits, without any electrical degradation.
Keywords
ACP - Attendant Control PanelL, PWA - Printed Wire Assembly, CFD - Computational Fluid Dynamics, LCD - Liquid Crystal Display, LRU - Line Replaceable Unit, PCB - Printed Circuit Board
User
Information
- Gurrum S P, Suman S K et al. (2003). Thermal issues in next generation integrated circuits, IEEE Transactions on Device and Materials Reliability, vol 4(4), 709–714.
- Dvinsky A, and Bar-Cohen A (2000). Thermofluid analysis of staggered and inline fin heat sinks, The Seventh Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, 2000. ITHERM 2000, vol 1.
- Upadhya G (1998). Thermal design of iMac computer, Apple Corp. Cupertino, CA 1998, Available from: http://www.powerpc.hu/manila/static/home/Dev%20notes/PowerMac/12%20PM%20G3%20(Blue%20and%20White).pdf
Abstract Views: 484
PDF Views: 0