NDLI: Energy Conversion Analysis of a Novel Solar Thermochemical System Coupled With Fuel Cells

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Vinck, Ian Ozalp, Nesrin
Copyright Year	2015
Abstract	Fossil fuels have been the main supply of power generation for use in manufacturing, transportation, residential and commercial sectors. However, environmentally adverse effects of fossil fuel conversion systems combined with pending shortage raise major concerns. As a promising approach to tackle these challenges, this paper presents a novel energy conversion system comprising of a solar thermal reactor coupled with hydrogen fuel cell and carbon fuel cell for electricity generation. The system uses concentrated solar energy for high temperature heat which upgrades the calorific value of the feedstock by 8%. The paper describes the components and characteristics of the proposed concept and models the energy flow of this system. A comparison based on unit mass feedstock supply is made with conventional Brayton cycles for electricity production. The results show that the extent of acetylene byproduct conversion in the solar reactor is of crucial importance to ensure competitiveness. Depending on the fuel cells efficiency and even more on the extent of byproduct formation, the results show that the overall chemical-to-electrical efficiency of this combined system ranges from 35 to 58%.
File Format	PDF
ISBN	9780791857441
DOI	10.1115/IMECE2015-51498
Volume Number	Volume 6B: Energy
Conference Proceedings	ASME 2015 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2015-11-13
Publisher Place	Houston, Texas, USA
Access Restriction	Subscribed
Subject Keyword	Thermal reactors Feedstock Fossil fuels Brayton cycle High temperature Carbon Flow (dynamics) Transportation systems Electric power generation Heat Fuel cells Energy conversion Solar energy Energy generation Manufacturing
Content Type	Text
Resource Type	Article

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