Preface

The first invention and development of the functional diesel engine was in 1897 by Rudolf Christian Karl Diesel, German inventor, more than 123 years ago. This invention has now been surpassed by development of very productive engines and mechanics. Current diesel engines are well known to many people around the world and serve in innumerable applications for various types of public transport, light and heavy duty transportation, for automotive, railway, maritime or aviation transportation, in different harsh environments, in construction, in mining, and for diverse industries. The light duty or heavy-duty diesel engines have some drawbacks. One of the main concerns is exhaust emissions generated by diesel engines.

This book discusses the generation of diesel exhaust emissions and mitigations, performance, emissions and combustion evaluations, utilisation of alternative biodiesel fuels, comparison of different techniques for measurement of soot and diesel particulate matter, analyses of diesel particulate matter flow pattern, and chemical composition of diesel particulate matter. The main concern of this book is to expand knowledge of readers and bring together the latest research findings related to diesel engine exhaust emissions.

The book *"Introduction to Diesel Emissions"* is divided into three main sections: Diesel Engines and Exhaust Emissions; Biodiesel and Alternative Fuels; and Soot and Diesel Particulate Matter. In these three sections, readers can find topics dealing with diesel combustion engines and exhaust emissions, and related references or internet links that can help to further inspire experts as well as non-experts in the importance of this subject.

In conclusion, I would like to thank all of the authors for rigorous preparation of individual chapters and I wish you a pleasant read.

> **RnDr. Dr. Eng. Richard Viskup, MSc., MPhil., PhD.** Johannes Kepler University Linz, Linz, Austria, January 2020
