FACULTY OF CHEMICAL ENGINEERING UiTM Cawangan Johor, Kampus Pasir Gudang Jalan Purnama, Bandar Seri Alam 81750 Masai Johor Darul Ta’zim Tel : 607-3818000 TECHNICAL/EXECUTIVE REPORT : CHEMICAL ENGINEERING Lab No. : 01 Module : Topic : CONCENTRIC HEAT EXCHANGER Mark : Date : 13 MARCH 2017 Participant Course : CHE 245 Semester : 4 Group: J4EH1104A No. Name Matrix No. Signature 1 MUHAMMAD AZHAR BIN MOHD SHAPERI 2015880608 2 MUHAMAD FAIZZUDIN BIN MOHAMAD ZAN 2015867326 3 NAZIFA BINTI MOHD SHARAWI 2015869682 4 NAZIRAH NATASHA BINTI MOHD REDZUAN 2015648158 Instructor 1. AHMAD RAMLI BIN RASHIDI 2. Abstract : Concentric Heat Exchanger has been designed specifically to demonstrate the working principle of industrial heat exchanger. Heat exchanger is a device built for an efficient heat transfer from one medium to another medium. The objective of this experiment is to demonstrate the working principle of a co-current flow and counter current flow. The experiment starts with both hot and cold fluid enter the heat exchanger at the same end and move parallel for the co-current flow. For the counter flow, the fluids enter at different end move opposite to each other. From the results, the percentage efficiency in experiment D are more than 100%, although the percentages effieciency of counter current is more than co-current. Furthermore, based on the calculation, power absorbed is much larger than power emitted. Finally, we assume that there could be external or internal factors that could contribute to this kind of phenomena. Introduction : Heat exchanger acts as a medium to help in exchanging of heat between two fluids of different temperature while keeping both fluids from mixing with each other. Heat exchanger is commonly used in a wide range of application. The most common type of heat exchanger that can be found in our household is in our air- conditioning system. Whereas in industry, it can be found in chemical processing and power production in large plant. 100