Analysis of the Effect of Comparative Air and Fuel Gas (LPG) on Metal Melting Furnace Temperature

Muhammad Rafiq Yanhar, Abdul Haris Nasution

Abstract: Aluminum is the most common non-ferrous material and is widely used in society, in fact the annual use of aluminum is second only to iron and steel. Aluminum is a light metal that has good corrosion resistance properties. Gas use (Liquefied Petroleum Gas) as fuel because it is easy to find and also has an affordable price compared to gas on the market. The net calorific value obtained from gas (Liquefied Petroleum Gas) is 11,254.61 Kcal/Kg. The aim of this research is to obtain the appropriate temperature based on the ratio of excess air and fuel gas (Liquefied Petroleum Gas) and also to determine the actual value in the combustion process, which includes the time and temperature of aluminum melting. Based on the research results obtained, the combustion value with air exceeding 0% temperature can reach 998 ?C with a time required of 22 minutes, and the lowest temperature occurs with air exceeding 10% with a temperature of 787 ?C with a time reaching 30 minutes, to melt 500 g of Aluminum. The actual value of air that can be obtained from air exceeding 0% is 16.33 for 1 liter of fuel.

Keywords: More air, Stoichiometry, Melting