RANCANG BANGUN KONDENSOR DAN PENGARUH GEOMETRI DIAMETER PIPA SPIRAL KONDENSOR TERHADAP KUANTITAS MINYAK GASIFIKASI

Abstract

The use of fuel oil, especially fossil fuels besides their limited availability, can also cause environmental problems such as air pollution. So we need alternative energy sources as renewable energy to replace fossil fuels, namely biofuels. To produce biofuel from biomass, a thermochemical process is required, namely gasification. To produce condensate, the gasification smoke must be cooled using a condenser. Helical coil type condensers are more widely used because they have high effectiveness in the condensation process due to the curved shape of the coils which induces a centrifugal force of the moving fluid. The purpose of this study was to determine the effect of the geometric diameter of the condenser coil on the effectiveness of the condenser and the quantity of condensate produced during the process. gasification condensation. The method used in this study is an experimental method which includes literature study, technical requirements analysis, design process, working drawings, manufacturing process, and condenser testing process. With the required pipe length of 5 m, the researchers varied the geometry of the pipe diameter by 20 cm, 30 cm and 40 cm to determine the effectiveness of the condenser, the efficiency of condensation and the quantity of oil. The highest oil yield was found in the variation with the 20 cm coil geometry, namely 228 gram, while in variations 30 and 40 each obtained 201 gram and 186 gram of condensate. The highest condenser efficiency is found in the 20 cm coil variation with an efficiency of 75.72%, followed by the 30 cm coil variation with 67.55% and the 40 cm coil variation with an efficiency of 60.53%. 

Keywords: coconut shell, condenser, variation of pipe diameter geometry, syngas, gasified oil