Inaccuracies in the inverse heat conduction problem solution and their effect on the estimation of heat fluxes during quenching

• Solving the Inverse Heat Conduction Problem (IHCP) is a common approach to estimate surface heat fluxes involved in transient, quenching experiments. It well known that ambiguities are inherent IHCPs and uncertainties can be large. A “virtual experiment” followed analyze accuracy of flux estimations The results show there unavoidable issues experiments significantly overestimate temperature initial instants experiment. Therefore, it not recommended relate boiling regime observations first inverse problem presents several challenges, such as accounting for non-uniqueness its solution, effects noise, or other practical affecting experimental input data, thermal contact internal sensors. In this paper, possible sources inaccuracy IHCP solution their effect on estimated by water jet impingement systematically investigated. noise cancelling technique, ambiguity conditions quality thermocouple estimations. invalid assumption perfect between test plate leads overestimation stages quenching. Based these results, two measures proposed avoid misinterpretation when solving IHCP.