Sensitivity analysis for robust design of building energy systems

In this paper, first the sensitivity of the design to selected boundary conditions is extensively investigated. In a second step, the resulting designs of the deterministic and stochastic optimizations are compared for several uncertainties. All optimizations are setup using a previously developed framework which is extended to solve the stochastic optimization problem. The comprehensive analyses show that the achievement of a robust design is computationally demanding and not even desirable in general. However, the size of devices may vary by up to 100% when a robust design is attained.