23-000004328 Dynamic Thermal Management of High Transient Heat Loads using Design Optimized Heat Sinks
Abstract
The primary objectives of the proposed work are to design, construct and test a multi-evaporator cooling system capable of handlingdynamic heat loads. The proposed work will consider multiple additively manufactured heatsinks or evaporators to explore and address the complexity surrounding multi-evaporator cooling systems sharing components like the pump, fluid reservoir (accumulator), and condenser. First, our strategy will combine physics-based modeling and experimentation to generate a reduced-order model for predicting flow and heat transfer behavior in non-intuitive and relatively unique evaporator channels. The model will be used to optimize the evaporator design. More importantly, we believe that the evaporator design will also depend on the control design # in other words, the design will account for the capabilities and limitations of the control strategy. We address this aspect using co-design and optimization, which simultaneously determines the evaporator geometry and control parameters. With the development of additive manufacturing technologies, the design space for evaporators is dramatically larger, with the potential for design solutions that have notbeen considered before. Additive manufacturing is also more conducive to building complex-shaped evaporators. Here, while the team has access to an in-house (metal) selective laser-melting (SLM) setup, we will also use local manufacturing firms to 3D-print multiple evaporators for a detailed experimental study. Our control strategy will manage anticipated and unanticipated disturbances (i.e.,heat loads) for a multi-evaporator cooling system. A successful implementation will be significant since it overcomes several challenges expected in phase-change cooling systems and the complexities associated with dynamic heating. The final deliverable will include system-level performance modeling, multi-evaporator (3 to 5) testbed construction, and the experimental characterization of the cooling system underdynamic heating.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 11, 2023
- Source ID
- N000142312698
Entities
People
- Shankar Narayanan
Organizations
- Office of Naval Research
- Rensselaer Polytechnic Institute
- United States Navy