Title: " Experimental Transient Boiling under High Pressure and Various Subcoolings” 

ABSTRACT: 

The goal of this research is to create and operate a transient boiling system under elevated temperature and pressure. There is presently a lack of understanding of transient boiling heat transfer under various conditions of interest, specifically under high pressure and various subcooling states. The specific aims of this work are to:experimentally determine temperature and heat transfer from a thin wire subject to various states of pressure and water subcooling, analyze boiling behavior and regime seen at each temperature vs heat transfer location to define the transient boiling heat transfer curve, and elucidate the impact of various experimental parameters on the heat transfer at a given heater temperature for informing better design and modeling. 

The work will be accomplished through a series of experiments and employing a 2^k factorial design of experiments method. The experimental system will be a designed in such a way as to allow for the modification of many key parameters, e.g. wire diameter, surface conditions, power pulse conditions, etc. The impact of changing these parameters will be quantified to form a data-informed guide for development and modification of systems under transient pool boiling conditions. 

This work will advance the current knowledge of the heat transfer and nuclear fields in several ways. Currently, the data available on the predicted behavior of nuclear reactors due to transient boiling in accident conditions is very small. This work will serve to add to this pool of data. In addition, there is an ever-increasing demand for improved heat transfer in various industries. The data-informed guide, as mentioned above, will serve as a basis for future designs and heat transfer experiments. 

Join Zoom Meeting: 

Link: https://pitt.zoom.us/j/96573433047

Passcode: 038952 

Meeting ID: 965 7343 3047