Design And Analysis Of Heat Resistant Ferrule Used In Heat Exchanger Tube By Using CFD Vibhavari. Y. Chaudhari, D.Y.Patil college of engineering, Akurdi, pune- 44 Prof. P. T. Nitnaware, D.Y.Patil college of engineering, Akurdi, pune- 44 Prof. A. S. Dhekane D.Y.Patil college of engineering, Akurdi, pune- 44 Abstract Many modern Generator or Exchanger operates in high-temperature environments. These exchangers are associated with the chiller system where the where the tube-sheet–tube-ferrule assemblies are exposed to gasses at temperatures approaching 1200⁰C. because sulfur compounds are present in the process gas, the carbon steel tube sheet and tubes in the assembly will be deteriorated by sulfidation as the operating metal temperature rises above 800°C.Ferrule systems are used to protect the carbon steel from exposure to excessive temperatures. The temperature distribution in the steel tube-sheet–tube- ferrule system is affected by process gas flow and heat transfer through the assembly. A computational fluid dynamics investigation was conducted to study the flame flow and Temperature distribution on tube inlet and ferrule. It was found that the configuration of the ferrule installation has a large influence on the temperature distribution in the steel materials and, therefore, the possible sulfidation of the carbon steel parts. Keywords: CFD, non-premixed combustion, ferrule, Standard kepsilon turbulence model, diesel fuel, 1. Introduction The waste heat exchanger studied is a typical ASME Boiler and Pressure Vessel Code Section VIII Division 1design with a flexible tube sheet. The carbon steel tube sheet is protected by a two-piece solid-head ferrule system. For modern heat exchangers, the tube-sheet design temperature is typically in the range of 650–700°F for ASME Code 1 tube-sheet calculations. The carbon steel component materials are SA 516-70 plate for the tube sheet and SA 106B for the tubes. The ferrules are content ceramic material. The ferrule heads are arranged such that the cold assembly gap closes at operating temperatures due to thermal expansion. Ferrules are used in direct fired/exhaust fired VAM (vapor absorption machine) tube to tube sheet joints weld protection from direct flame Also used to provide protection to the inlet ends of shell and tube heat exchangers in application where high temperature or corrosive material are processed. as shown in fig:2 Ferrules denote either specialized strengthening rings and caps placed on components, or fittings used in heat exchangers, boiler tubes and condenser tubes as shown in fig: 1.A double-ring ceramic ferrule member insertable into a fire tube of a sulfur plant boiler or cooler, the an article of manufacture capable of reducing damage caused by high temperature gas flow through a fire tube, thereby to protect the fire 2055 International Journal of Engineering Research & Technology (IJERT) Vol. 2 Issue 5, May - 2013 ISSN: 2278-0181 www.ijert.org