Challenges DRISHTI

Development of Annealed Pyrolytic Graphite (APG) material Heat shunt and chassis for effective thermal performance

Project shall be done in two phases (Phase-1 & Phase-2) Phase-1: Proof of Concept: To validate the process of manufacturing of APG material Heat shunt and chassis withelectronics module Engineering Cards and prove the thermal performance compared with legacy design.• Graphics, SBC & IOCM Module thermal performance improvements for following conditions: • 55OC ambient for continuous operation – steady state condition • 65OC ambient for continuous operation – steady state condition • 71OC ambient for 30mins operation – Transient state condition • Chassis with 6U and/or 3U modules with ¾ ATR, ½ ATR and custom size chassis for 250w power with conduction Colling for following conditions. • 55OC ambient for continuous operation – steady state condition • 65OC ambient for continuous operation – steady state condition • 71OC ambient for 30mins operation – Transient state condition All the above development with sample engineering Heat shunt/sink should be tested with available module and Thermal analysis to be carried out using ANSYS ICEpak Phase-2 : Development for implementation on LRU: • Innovator shall develop MIL-Standard Heat shunts/heat sinks and chassis with APG material and test the same for a given LRU for following conditions: • Graphics, SBC & IOCM Module thermal performance improvements for followingconditions: • 55OC ambient for continuous operation – steady state condition • 65OC ambient for continuous operation – steady state condition • 71OC ambient for 30mins operation – Transient state condition • Chassis with 6U and/or 3U modules with ¾ ATR, ½ ATR and custom size chassis for 250w power with conduction Colling for following conditions. • 55OC ambient for continuous operation – steady state condition • 65OC ambient for continuous operation – steady state condition • 71OC ambient for 30mins operation – Transient state condition

Challenges