Eventos Anais de eventos
ENCIT 2016
16th Brazilian Congress of Thermal Sciences and Engineering
Waste heat recovery from fuel cells applied in adsorption systems
Submission Author:
Marcos Vinício Oro , SC
Co-Authors:
Rogério Gomes de Oliveira, Edson Bazzo
Presenter: Marcos Vinício Oro
doi://10.26678/ABCM.ENCIT2016.CIT2016-0198
Abstract
This manuscript reports a thermodynamic analysis to assess the feasibility of using the heat rejected by a proton exchange membrane fuel cell (PEMFC) to drive commercial adsorption chillers, in a cogeneration scheme to produce electricity and cooling power. The PEMFC was assumed to have efficiency in the range of 40 % to 60 %. Commercial adsorption chillers have COP in the range of 0.46 to 0.67. For a PEMFC efficiency of 40 %, our analysis showed a cogeneration system efficiency within 61 to 71 %, according to the chiller COP. For a PEMFC efficiency of 60 %, the cogeneration system efficiency reached up to 75 %. Such cogeneration scheme improved the hydrogen energy utilization in between 46 and 123 % when compared to the hydrogen energy utilization by single fuel cell. The results are considered promising, and show a technical feasibility of the proposed cogeneration scheme for industrial and even automotive applications.
Keywords
Waste heat, Fuel Cell, Adsorption system, Waste heat, Fuel Cell, Adsorption system
