Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
RECIPROCATING AND SCREW AIR COMPRESSORS: A CASE STUDY
Submission Author:
Pedro Figueiredo , GO
Co-Authors:
Pedro Figueiredo, Christian Moura , Rodrigo Ribera
Presenter: Pedro Figueiredo
doi://10.26678/ABCM.COBEM2019.COB2019-1128
Abstract
This study focuses on economic results related to the conversion of electric energy to compressed air. It was developed with the purpose of presenting a case study of electrical efficiency and effective flow as the final product of the conversion, without observing the generation losses in the airend, in a system with reciprocating piston air compressors. Subsequent to this analysis, a comparison was made with the same demands and needs of the system being serviced by a screw-type positive displacement air compressor. This is an evaluation of the collection of quantities such as electric current, manometric pressure and volumetric flow of air compressors, in order to present a proposal that presents greater efficiency in the generation of compressed air, that is, generate a certain volume with a certain pressure with the least possible consumption of electricity. It is proposed an mathematical model that allows precise analysis to delineate the limits in the use of reciprocating piston compressors in the generation of compressed air of low pressure (up to 15 Bar) in relation to compressors of screw type air. It has been found that there is a superiority of the screw type compressors from a number of daily working cycles, presenting greater efficiency in the conversion of electric energy to compressed air.
Keywords
Compressed air systems, efficiency in compressed air, case study screw and piston compressors
