Electrohydrodynamic (EHD) forces acting on a fluid can be used to significantly increase the heat transfer coefficient with little power consumption or flow restriction. Experiments have shown promising results with simple configurations, but practical heat exchanger development is needed. Analytical development will establish design equations and aid in experimental data correlation. Small scale test units will provide experience in determining heat exchanger configurations and electrode options. Controller and high voltage power supply units will also need to be developed. Full-scale EHD heat exchanger systems can then be developed to demonstrate technology availability for military and commercial products.