Geometric Evaluation of Electric Process Heating Stability

An earlier method for determining stability in electrothermal processes depended upon either a knowledge of GH-plane techniques or previously tabulated data. Neither may be conveniently available during such on-site operations as installation, commissioning, or maintenance. A new approach has been developed that involves only a simple geometric construction. If permanently displayed it constitutes a facile technique for stability evaluation in many applications of electric process heating.