Análise da substituição de um queimador a gás natural por resistências elétricas em um tanque de lavagem de peças

Abstract

Burners are devices used to transmit heat to an object through a flame. These can be fed through gas pipes, both natural and Liquefied Petroleum Gas (LPG), or other fuels such as oil and gasoline, depending on the need for the application and economic/financial factors. The operation of a burner starts from a basic principle of combustion. The mixture of oxygen, fuel and spark, from an ignition, promote the ignition of the burner flame. In this way, the equipment starts the heating process of any object and/or surface that you desire. One of the applications of the burners is the heating of tanks for washing parts that have undergone mechanical conformation processes and, therefore, need baths with high temperature solutions to remove surface oiliness and any unwanted residue that remains under the part. The project in question carried out the analysis of the replacement of a natural gas burner by electrical resistances in a parts washing tank of a consumer goods manufacturing company. The objectives of this work are based on reducing the cost of the process by replacing the heating with a natural gas burner with electrical resistances, maintaining, or even improving, the efficiency of heating the bath solution. The results obtained, after carrying out the computer simulations, demonstrate that the fluid heating system using electrical resistances meets the demand of raising the fluid temperature to at least 50º C, compared to the current heating system using a gas burner. natural with fewer iterations demonstrated with better cost. The monthly cost reduction when replacing the heating process with LPG gas for electrical resistances is R$17,796.24. [resumo fornecido pelo autor]