Vista previa del material en texto
Acknowledgements I should like to acknowledge the help which the following have, largely unwittingly, given me. Firstly, my wife Babs, for encouragement when I most needed it. Secondly, to my many friends and colleagues in the pump industry who, largely unconsciously, have helped me in the preparation of this volume. In particular: Charlie Cinnamond, who first fostered my interest in pumping machines; Ken Newton and Alan English, who helped me with a number of the drawings I have used; Also, Brian Nesbitt, and my daughter Zena for some of the case studies referenced in the book; Dr Paul Cooper, upon whose shoulders I frequently stood to get a better view into the anatomy of pump hydraulics; The late Jan Slaghekke, for helping me see further than the issues of pump performance, and to equally embrace the influences of the pump system; finally, the late Harold Anderson who, during his life, exerted a substantial influence on most British pump engineers. vii