Control of cooling loops with large and variable delays

Further experimental results on modelling and algebraic control of a delayed looped heating-cooling process under uncertainties

“…It is worth noting that a novel modelling approach combining PDEs and DDEs into the so-called delay partial differential equations (DPDEs) was proposed for constant [ 30 ] and time-varying [ 5 , 31 ] flows recently. It comes from a one-dimensional PDE model that includes the transport process and the wall dynamics revealing delays.…”

“…It is worth noting that input-output delay models only (i.e., neither DDEs nor DPDEs) were considered when performing the above-given research. Results on advanced control of looped HX processes incorporating delayed infinite-dimensional models [ 5 , [28] , [29] , [30] ], however, have not utilized robustness methods and tools in the design explicitly. Moreover, they are mostly mathematically and computationally demanding.…”