ZTEK`s ultra-high efficiency fuel cell/gas turbine system for distributed generation
ZTEK`s ultra-high efficiency fuel cell/gas turbine system for distributed generation
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中兴通讯超高效燃料电池/燃气轮机分布式发电系统
DOI：
10.2172/460195
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
D. Bradshaw
中科院分区：
文献类型：
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作者：
M. Hsu;D. Nathanson;D. Bradshaw
Ztek的平面固体氧化物燃料电池（SOFC）系统具有公用事业发电的特殊潜力，因为：组件结构简单，低成本制造能力，高效回收非常高质量的副产品热量（高达1,000 C），以及系统集成简单。固体氧化物燃料电池的实用应用是多种多样的，包括分布式发电单元（亚兆瓦至30兆瓦容量）、为现有发电厂重新供电（即，30兆瓦至100兆瓦），以及多兆瓦的中央发电厂。TVA/EPRI合作计划涉及先进固体氧化物燃料电池堆的功能测试和分布式发电应用的设计放大。重点是公用事业模块的工程设计，这些模块将成为兆瓦级发电厂的基石。该计划有两个独特的子程序：验证测试的1千瓦的堆栈和25千瓦的模块，公用事业示范。到1995年12月，一台1 kW的平板式SOFC电堆已成功地运行了15，000小时。Ztek开始为TVA开发25 kW SOFC电源系统，该系统计划于1997年在主机现场安装25 kW SOFC进行演示。Ztek正在开发一种带有燃气涡轮机的平面固体氧化物燃料电池的超高效混合系统，更多»实现共享成本和性能优势。从燃料电池系统的角度来看，燃气涡轮机作为设备平衡是一个合理的选择，因为：（1）燃气涡轮机的高功率密度能量转换;（2）Ztek Planar SOFC与燃气涡轮机的独特兼容性;以及（3）低成本商业燃气涡轮机系统的可用性。田纳西流域管理局/Ztek计划正在进行中，该计划涉及先进平面SOFC系统的操作和公用事业发电应用的设计规模。«少
Ztek`s Planar Solid Oxide Fuel Cell (SOFC) system has exceptional potential for utility electric power generation because of: simplicity of components construction, capability for low cost manufacturing, efficient recovery of very high quality by-product heat (up to 1,000 C), and system integration simplicity. Utility applications of the Solid Oxide Fuel Cell are varied and include distributed generation units (sub-MW to 30MW capacity), repowering existing power plants (i.e., 30MW to 100MW), and multi-megawatt central power plants. A TVA/EPRI collaboration program involved functional testing of the advanced solid oxide fuel cell stacks and design scale-up for distributed power generation applications. The emphasis is on the engineering design of the utility modules which will be the building blocks for up to megawatt scale power plants. The program has two distinctive subprograms: Verification test on a 1kW stack and 25kW module for utility demonstration. A 1kW Planar SOFC stack was successfully operated for 15,000 hours as of December, 1995. Ztek began work on a 25kW SOFC Power System for TVA, which plans to install the 25kW SOFC at a host site for demonstration in 1997. Ztek is proceeding on development of an ultra-high efficiency hybrid system of its Planar SOFC with a gas turbine,more » realizing shared cost and performance benefits. The gas turbine as the Balance-of-Plant was a logical selection from a fuel cell system perspective because of: (1) the high-power-density energy conversion of gas turbines; (2) the unique compatibility of the Ztek Planar SOFC with gas turbines; and (3) the availability of low-cost commercial gas turbine systems. A Tennessee Valley Authority/Ztek program is ongoing, which addresses operation of the Advanced Planar SOFC system and design scale-up for utility power generation applications.« less