Dr. Manfred Nitsche has more than 40 years' experience as a chemical engineer. During his career he has designed and built several chemical plants and has been giving engineering training courses for young engineers since 1980. He has written a number of books on piping design, heat exchanger design, heating and cooling systems in plants, column design and waste air cleaning (all in German).Dr. Nitsche's extensive experience includes designing and building distillation units, tank farms, stirred tank reactor facilities, air purification units and absorption and stripping units for various applications.Mr. Gbadamosi has over 40 years of experience working in thermal design of heat exchangers. His first industrial experience was as a development engineer researching energy systems at the AEG research laboratories in Hamburg, Germany.Following this he worked at Claudius Peters AG - a subsidiary of Babcock in the 1970s - designing process systems for the cement industry. Mr. Gbadamosi joined BP Germany in 1975 as a senior process engineer where he was responsible fordesigning heat exchangers.In 1988 he set up the consulting company RAM Systeme PRO SIM Ingenieurbüro GmbH in Hamburg, Germany with a dynamic team of chemical, mechanical engineers and chemists. Since then, he has served the process industries and academicinstitutions of Germany and Europe. Some clients include: BASF, BP, Beiersdorf, DEA, DVFG, Infineon (formally Hoechst), Sasol, Shell,TEXACO, Sulzer Chemtech, Technical University of Hamburg-Harburg, Helmut Schmidt (German Armed Forces) University, University of Clausthal-Zellerfeld, Fachhochschule Bingen, Fachhochschule Düsseldorf and many others.