Pulsed Variable Flow Rate (PVFR): Feasibility Study

Abstract

Early evaluation of the Intellectual Property (IP) was conducted in 2017 with the results published at the IEEE Industrial Electronics Society conference (IECON) [1]. This paper extends the previous work by evaluating the potential feasibility and efficacy of the Pulsed Variable Flow Rate (PVFR) cooling algorithm and the DynaCool simulation software using a real-world Proof-of-Concept (PoC) test systemThe efficacy of PVFR was established against two other VFR cooling algorithms. The results on a 1 KiloWatt (KW) test system showed an average of 44.71% and 42.56% reduction in cooling power consumption without affecting cooling performance on sub-component temperatures. Validity was also established for deploying PVFR for multiple daisy chained components in a single cooling loop. PVFR is ideally suited to applications where cooling systems are over-provisioned for a given thermal load.