一种新型直接碳燃料电池废热利用系统  

Performance of Stirling-Based Direct Carbon Fuel Cell Waste Heat Recovery System

作　　者：陈礼炜[1] CHEN Li-wei(School of Mechanical and Electronic Engineering,Sanming University,Sanming 365004,China)

机构地区：[1]三明学院机电工程学院,福建三明365004

出　　处：《三明学院学报》2020年第6期45-49,共5页Journal of Sanming University

基　　金：国家自然科学基金(11804189);福建省高校新世纪优秀人才支持计划;福建省高校杰出青年科研人才培育计划。

摘　　要：利用现代斯特林热机具有小型轻量化和多种能源广泛适应性的特点,构建了一个以不可逆斯特林热机为二级能量装置的直接碳燃料电池废热利用耦合系统。其中,斯特林热机作为直接碳燃料电池的下级余热回收装置,起到了提高整体系统性能的作用。运用工程热力学的研究方法,推导出系统性能的解析表达式。分析得出:由于二级能量装置——斯特林热机的存在,耦合系统的性能得了显著提高。,考虑耦合系统工作过程中的各种不可逆因素,通过数值计算,确立其可能的性能边界,给出耦合系统的最佳工作条件,该结论可为实际的工程应用提供理论指导。Based on the characteristics of modern Stirling engine,a new type of direct carbon fuel cell waste heat utilization hybrid system with irreversible Stirling engine as a secondary energy device is constructed.Stirling engine,as a secondary waste heat recovery device of direct carbon fuel cell,can improve the performance of the whole system.By using the method of engineering thermodynamics,the analytical expression of the system performance is deduced.It is concluded that the performance of the hybrid system has been significantly improved due to the existence of Stirling engine.In addition,considering various irreversible factors in the working process of the hybrid system,the possible performance boundary is established by numerical calculation,and the optimal working condition of the coupling system is given.The conclusion can provide theoretical guidance for practical engineering applications.

关 键 词：直接碳燃料电池 不可逆斯特林热机 废热利用 系统性能 

分 类 号：TM911.4[电气工程—电力电子与电力传动]