Estudio y diseño de una estación centralizada de gas licuado de petróleo "GLP" para el Laboratorio de Fundición de la Universidad Politécnica Salesiana Campus Sur

Abstract

This project consists of the study and design of a centralized station of liquefied petroleum gas (LPG) for the Foundry Laboratory of the Universidad Politécnica Salesiana Campus South. It is formed by a load line that transports the fluid in liquid state to 700 gallons per hour with manual valves of two bodies located in the two ends and a relief valve calibrated to 1723.7 kPa (250 psi) to open in case of an overpressure, a storage tank specifically for LPG with ASME status imported from Guadalajara, Jalisco, Mexico, brand GCYTSA designed to support 2240.8 kPa (325 psi), where the fuel is in liquid state and evaporating inside the cylinder this by convection obtaining the fluid in a gaseous state different pressures depending on the percentage of storage inside, which does not exceed 85% of its filling capacity where the relief valve of the calibrated tank acts to release the gas to the environment at a pressure not higher than 1723.7 kPa, thanks to the temperature that surrounds the tank the vaporization obtains internal pressure making the fluid reach the point of consumption. In a pipeline designed to work with turbulent fluid, this power line has a first stage regulator and a second stage regulator delivering a pressure of 48.27 kPa (7 psi) for the proper operation of the direct fire burner type G1/1-E. crucible furnace used for aluminum smelting, the investment required for the possible implementation perceives a 24 % internal rate of return to a period of 5 years, the project being viable considering that the years of useful life of the installation is not greater than 30 years.