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Nuclear Air-Brayton Combined Cycle Power Conversion Design, Physical Performance Estimation and Economic Assessment.

机译：核-布雷顿联合循环功率转换设计，物理性能估计和经济评估。

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摘要

The combination of an increased demand for electricity for economic development in parallel with the widespread push for adoption of renewable energy sources and the trend toward liberalized markets has placed a tremendous amount of stress on generators, system operators, and consumers. Non-guaranteed cost recovery, intermittent capacity, and highly volatile market prices are all part of new electricity grids.;In order to try and remediate some of these effects, this dissertation proposes and studies the design and performance, both physical and economic, of a novel power conversion system, the Nuclear Air-Brayton Combined Cycle (NACC). The NACC is a power conversion system that takes a conventional industrial frame type gas turbine, modifies it to accept external nuclear heat at 670°C, while also maintaining its ability to co-fire with natural gas to increase temperature and power output at a very quick ramp rate. The NACC addresses the above issues by allowing the generator to gain extra revenue through the provision of ancillary services in addition to energy payments, the grid operator to have a highly flexible source of capacity to back up intermittent renewable energy sources, and the consumer to possibly see less volatile electricity prices and a reduced probability of black/brown outs.;This dissertation is split into six sections that delve into specific design and economic issues related to the NACC. The first section describes the basic design and modifications necessary to create a functional externally heated gas turbine, sets a baseline design based upon the GE 7FB, and estimates its physical performance under nominal conditions.;The second section explores the off-nominal performance of the NACC and characterizes its startup and shutdown sequences, along with some of its safety measures. The third section deals with the power ramp rate estimation of the NACC, a key performance parameter in a renewable-heavy grid that needs flexible capacity. The fourth section lays out the cost structure of the Mk1 Pebble-Bed Fluoride-salt-cooled High-temperature Reactor (FHR) with the NACC, since the NACC cannot be treated separately from its heat source.;The fifth section evaluates the cost structure of a twelve-unit Mk1 FHR and NACC, including capital construction costs, operating costs, fuel and decommissioning costs in bottom up methodology. The sixth section proposes alternative NACC configurations and scales (mobile, remote NACC) or alternative power cycles to the NACC that can be coupled to the FHR (supercritical carbon dioxide Brayton cycle).
机译：经济发展对电力的需求增加，加上可再生能源的广泛采用以及市场自由化的趋势，加之了发电机，系统运营商和消费者的巨大压力。无保证的成本回收，间歇性的容量以及市场价格的剧烈波动都是新电网的组成部分。为了试图补救其中的一些影响，本文提出并研究了电网的设计和性能，包括物理性能和经济性能。一种新型的动力转换系统，核-布雷顿联合循环（NACC）。 NACC是一种功率转换系统，采用了传统的工业框架型燃气轮机，对其进行了修改以在670°C的温度下接受外部核能，同时还保持了与天然气共同燃烧的能力，从而可以在非常高的温度下提高温度和输出功率快速的斜率。 NACC通过允许发电机通过提供除能源付款之外的辅助服务获得额外的收入，使电网运营商具有高度灵活的能力来支持间歇性可再生能源以及使消费者有可能解决上述问题。论文分为六个部分，分别探讨了与NACC相关的具体设计和经济问题。第一部分描述了创建功能性外部加热燃气轮机所需的基本设计和修改，基于GE 7FB设置了基线设计，并估计了其在名义条件下的物理性能。第二部分探讨了非标称性能。 NACC并表征其启动和关闭顺序以及一些安全措施。第三部分介绍了NACC的功率斜率估算，NACC是需要灵活容量的可再生重型电网中的关键性能参数。第四部分列出了带有NACC的Mk1卵石床式氟化物盐冷却高温反应器（FHR）的成本结构，因为NACC不能与热源分开处理。第五部分评估成本结构。由十二个单元组成的Mk1 FHR和NACC，包括自下而上方法中的基本建设成本，运营成本，燃料和退役成本。第六部分提出了可替代的NACC配置和规模（移动，远程NACC）或可耦合到FHR（超临界二氧化碳布雷顿循环）的NACC替代功率循环。

著录项

  • 作者

    Andreades, Charalampos.;

  • 作者单位

    University of California, Berkeley.;

  • 授予单位 University of California, Berkeley.;
  • 学科 Nuclear engineering.;Energy.
  • 学位 Ph.D.
  • 年度 2015
  • 页码 118 p.
  • 总页数 118
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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