Please cite this article as: Ch Ratnam, P V Rao, S Saritha, DWJ Spenner (2006) “Journal of the

Institution of Engineers (India), Part MC: Mechanical Engineering Division”, Vol.: 87(2), pp: 7-11

Please cite this article as: Ch Ratnam, P V Rao, S Saritha, DWJ Spenner (2006) “Journal of the

Institution of Engineers (India), Part MC: Mechanical Engineering Division”, Vol.: 87(2), pp: 7-11

Please cite this article as: Ch Ratnam, P V Rao, S Saritha, DWJ Spenner (2006) “Journal of the

Institution of Engineers (India), Part MC: Mechanical Engineering Division”, Vol.: 87(2), pp: 7-11

Please cite this article as: Ch Ratnam, P V Rao, S Saritha, DWJ Spenner (2006) “Journal of the

Institution of Engineers (India), Part MC: Mechanical Engineering Division”, Vol.: 87(2), pp: 7-11

Please cite this article as: Ch Ratnam, P V Rao, S Saritha, DWJ Spenner (2006) “Journal of the

Institution of Engineers (India), Part MC: Mechanical Engineering Division”, Vol.: 87(2), pp: 7-11

Please cite this article as: Ch Ratnam, P V Rao, S Saritha, DWJ Spenner (2006) “Journal of the

Institution of Engineers (India), Part MC: Mechanical Engineering Division”, Vol.: 87(2), pp: 7-11