Indian Journal of Science and Technology
Year: 2013, Volume: 6, Issue: 10, Pages: 1-5
G. Venkata Subbaiah1 , Y. Suresh Reddy2 and K. Vijay Kumar Reddy3 *
1 Department of Mechanical Engineering, [email protected]
2 CFD analyst, Wipro Technologies, [email protected]
3 Department of Mechanical Engineering
*Author For Correspondence
K. Vijay Kumar Reddy
Department of Mechanical Engineering
Email: [email protected]
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 105o C 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 (30o C), high operating (50o C) and short range operating (50o C to 60o C 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.
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