Parametric study on Oxy hydrogen gas generation and associated energy consumption using Taguchi's design of experiment concept

Oxy hydrogen gas is used for lighting, heating, welding etc and in recent past as a fuel additive in internal combustion engines. Generation of Oxy hydrogen gas depends upon number of factors like current, molarity, temperature etc. This paper presents parametric study on rate of oxy hydrogen gas generation (RGN) and related energy consumption (EC). Study is divided in two stages. In the first stage, experimentation is carried out using Taguchi's design of experiment concept to identify the significance of each factor on both responses. Regression model is presented to obtain RGN and EC at different levels of selected factors. Current shows its strong significance on both responses and its difficult to interpret contributions of other selected factors. In the second stage, these contributions are investigated at constant current. Optimization is carried out for maximum RGN and minimum EC with response surface methodology. Interaction effects are also studied and commented.