Eventos Anais de eventos
ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
AN ALTERNATIVE DESIGN AND ECONOMIC FEASIBILITY OF AN EXPERIMENTAL WASTE HEAT RECOVERY SYSTEM FOR INTAKE AIR CONDITIONING OF A LARGE INTERNAL COMBUSTION ENGINE
Submission Author:
Vitor Buson de Paula , ES , Brazil
Co-Authors:
Vitor Buson de Paula, Andre Chun, Bruno Muniz de Freitas Miotto, José Joaquim Conceição Soares Santos, João L M Donatelli, Carla César Martins Cunha
Presenter: Vitor Buson de Paula
doi://10.26678/ABCM.ENCIT2020.CIT20-0710
Abstract
This work presents an alternative design for an experimental waste heat recovery thermal system to be coupled to a large turbocharged internal combustion engine for combustion air conditioning. The goal is to carry out a design of a new thermal system under restricted economic requirements for one of the generators set of Luiz Oscar Rodrigues de Melo Thermoelectric Power Plant. Thereby, a comparison with the original proposal from previous works is also developed in order to demonstrate the differences in terms of thermo-economic design parameters. The waste recovery thermal system produces sufficient chilled water through a single-effect absorption chiller, powered by hot water which is produced by recovering the exhaust gases residual heat to supply cooling applications on the combustion air. The results showed a significant reduction for the chiller capacity demand, from 550 to 185 RT, that would be enough to provide chilled water for 98.72% of the analyzed operation historical period. The economic feasibility indicators reveal the proposal for the alternative waste heat recovery system as the best financial option, presenting a lower investment cost (US$316,793.27 of savings) and a time for capital recovery of 2.14 years, 1.61 years shorter when compared with the initial WHR system.
Keywords
Waste Heat Recovery (WHR), absorption chiller, intake air conditioning, Economic Feasibility, Internal combustion engine
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