The focus of this work is on passive control of transient heat transfer problems using the topology optimization (TopOpt) method . The goal is to find distributions of a limited amount of phase change material (PCM), within a given design domain, which optimizes the heat energy storage . Our aim is to obtain manufacturable designs  as well as demonstrating TopOpt for mixed multiphysics problems .TopOpt provides material distributions in a given design domain, optimized with respect to a given objective and satisfying a set of constraints. Originating in static mechanical problems, TopOpt has later been extended to transient problems in mechanics and photonics (e.g. ,  and ). In the presented approach, the optimization is gradient-based, where in each iteration the non-steady heat conduction equation is solved,using the finite element method and an appropriate time-stepping scheme. A PCM can efficiently absorb heat while keeping its temperature nearly unchanged . The use of PCM ine.g. electronics  and mechanics , yields improved performance and lower costs depending on a.o., the spatial distribution of PCM.The considered problem consists in optimizing the distribution of PCM in a design domain, subject to a periodic heat influx. The objective is to stabilize the heat outflow. Application examples include keeping constant room temperature for oscilatory heat input or keeping constant working temperature of a CPU subjected to time varying computational load.
|Number of pages||1|
|Publication status||Published - 2016|
|Event||ECCOMAS Congress 2016: VII European Congress on Computational Methods in Applied Sciences and Engineering - Creta Maris Conference Center, Hersonissos, Greece|
Duration: 5 Jun 2016 → 10 Jun 2016
|Conference||ECCOMAS Congress 2016|
|Location||Creta Maris Conference Center|
|Period||05/06/2016 → 10/06/2016|