... further aims to compute the variance, expected value, and confidence intervals of the solutions and visualize the outcomes using MATLAB software. Design/methodology/approach In this study, the Elzaki-Homotopy Analysis Method (EHAM) is employed by combining the Elzaki transformation with the homotopy...

... was chosen. The specifications of the engine are given in Table II . The engine was set to run first in gasoline carburetion mode. Y. Robinson can be contacted at: yrobin1969@yahoo.com © Emerald Group Publishing Limited 2007 Variance Internal combustion engines Modelling Owing...