“…Optimum number of stages, optimum effectiveness values for condensers and brine heater, optimum heat transfer areas of condensers and brine heater, and operating temperatures can be calculated easily in a few minutes with the help of practical formulae. A thorough search of the present literature showed that there were several studies about the fin optimisation about the desalination (El-Dessouky et al, 1998;Ettouney et al, 2000;Mussati et al, 2001;Bourouis et al, 1998;Müller-Holst et al, 1999;Al-Sofi et al, 2000;Jernqvist et al, 2001;Uche et al 2001;Manolakos et al, 2001;Ali, 2002;El-Nashar, 1998;Al-Bahri et al, 2001;Caruso and Naviglio, 2001;Garcia-Rodrigues et al, 2001;Kriesi, 1981;Miyatake et al, 2001;Virk et al, 2001;El Geriani et al, 1998;Spiegler et al, 2001;Al-Wazzan and Al-Modaf, 2001;Sagie et al, 2001;Garcia-Rodriguez and Gomez-Camacho, 2001a;Garcia-Rodriguez and Gomez-Camacho, 2001b;El-Nashar, 1994;Müller-Holst et al, 1998;Abufayed, 2001;Georgopolou et al, 2001;Abdel-Jawad et al, 2001;Laborde et al, 2001;Bick and Oron, 2000;Bacha et al, 2000;Sommariva et al, 1999). All of these studies are not directly related to the present work.…”