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Nonlinear topology optimization of District Heating Networks: A benchmark of a mixed-integer and a density-based approach KU Leuven

Yannick Wack, Tine Baelmans, Maarten Blommaert
The widespread use of optimization methods in the design phase of District Heating Networks is currently limited by the availability of scalable optimization approaches that accurately represent the network. In this paper, we benchmark two different approaches to nonlinear topology optimization of District Heating Networks in terms of computational cost and optimality gap. We compare a combinatorial approach, which directly solves a ...

NUMERICAL INVESTIGATION OF LOOP HEAT PIPE SYSTEM PERFORMANCE AND ITS OPERATIONAL LIMITS KU Leuven

Xu Huang, Maria Rosaria Vetrano, Tine Baelmans
The present paper focuses on Loop Heat Pipes (LHPs), which are passive two-phase cooling systems well suited for electronics cooling. Based on a validated and physics-based one-dimensional (1D) numerical model the steady-state performance of Loop Heat Pipes is assessed. By varying the ambient temperature, charging mass of coolant, and condenser cooling conditions, the performance of the LHP system under various operating conditions has been ...