Efek Konfigurasi Baffle Pada Heat Exchanger Type Shell And Tube Sebagai Pemanas Bahan Bakar Biodiesel B20

Abstract

B20 is a fuel that is widely used for combustion systems in diesel engines, especially in 
Indonesia. Apart from having the advantages, biodiesel B20 also has various disadvantages that 
affect the performance of diesel engines such as those that have a higher flash point than diesel so 
that biodiesel is more difficult to burn and has a high viscosity which causes less good atomization of 
fuel and eventually causes deposits in combustion chamber. One or the solution to the problem is 
that it can be done carefully. The aim of this research is to make a Shell and Tube Heat 
Exchanger (STHE) by including the insulation in it to improve the heat exchange performance. The 
method applied in this research is an experiment by testing the performance of the heat exchanger 
using a cooling water jacket. Some of the equipment used is a diesel engine from the Mitsubishi 
Diesel Engine, Type 4d35, 4 cylinder, 75 HP. Data were collected at a constant rotation of 1500 rpm 
at no load. The results showed that the higher the cooling water temperature of the jacket, the 
higher the biodiesel temperature. With a cooling water jacket temperature of 83oC, it can heat 
biodiesel at 74.8oC.