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首页> 外文会议>ASME(American Society of Mechanical Engineers) Power Conference; 20070717-19; San Antonio,TX(US) >PERFORMANCE ASSESSMENT OF COGENERATION SYSTEMS IN CALIFORNIA
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PERFORMANCE ASSESSMENT OF COGENERATION SYSTEMS IN CALIFORNIA

机译：加利福尼亚热电联产系统的性能评估

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Over the past several years, customer-sited cogeneration systems have been viewed as a way to mitigate electrical supply shortages. On the utility side, achieving this goal requires cogeneration systems to operate at a relatively high capacity factor, especially during peak periods. On the customer side, the cogeneration system must be capable of reducing operating costs, which can be accomplished by running the system at high operational efficiency and recovering available waste heat. Our firm has been evaluating customer-sited cogeneration systems installed under the Self Generation Incentive Program (SGIP). This paper will present the results of an in-depth performance evaluation conducted for the SGIP Working Group to evaluate the effectiveness of useful thermal energy recovery of on-site cogeneration systems that received incentives from the program.An earlier study investigated levels of energy efficiency and useful waste heat recovery achieved by cogeneration systems in the SGIP. This study raised some interesting questions regarding the actual operational efficiencies of cogeneration systems and low thermal heal recovery. By incorporating fuel consumption, thermal energy recovery and prime mover performance data obtained through the Program's measurement and evaluation monitoring efforts, actual measured performance was compared to engineering estimates of performance for each project. Thermal heat recovery plays an important role in the overall performance of a cogeneration system. This paper will explore some of the key drivers behind the unexpectedly low thermal energy recovery and overall plant performance. Possible ways to improve the useful waste heat recovery will also be discussed. Regular maintenance and thorough monitoring of the cogeneration system has big impact on the performance. Because the performance data includes the actual timing (hour and month) of cogeneration system operation, the effects of this distributed generation resource is evaluated by taking into account the large differences between peak and off-peak energy costs and benefits. This program-level distributed generation analysis can help program designers and policy makers to understand the limitations of smaller cogeneration applications relative to those systems envisioned under Public Utility Regulatory Policy Act (PURPA) and thus may have important policy implications for the future of cogeneration and distributed generation programs throughout the U.S.
机译：在过去的几年中，以客户为中心的热电联产系统已被视为减轻电力供应短缺的一种方法。在公用事业方面，要实现这一目标，需要热电联产系统以相对较高的容量系数运行，尤其是在高峰时段。在客户方面，热电联产系统必须能够降低运营成本，这可以通过以高运营效率运行系统并回收可用的废热来实现。我们公司一直在评估根据自我发电激励计划（SGIP）安装的客户现场热电联产系统。本文将介绍对SGIP工作组进行的深入性能评估的结果，以评估受到该计划激励的现场热电联产系统的有用热能回收的有效性。 SGIP中的热电联产系统实现了有用的余热回收。这项研究提出了一些有关热电联产系统的实际运行效率和低热修复率的有趣问题。通过合并通过计划的测量和评估监视工作获得的燃料消耗，热能回收和原动机性能数据，将实际测得的性能与每个项目的工程性能估算进行了比较。热能回收在热电联产系统的整体性能中起着重要作用。本文将探究出意外的低热能回收率和​​整个工厂性能背后的一些关键驱动因素。也将讨论改善有用的余热回收的可能方法。热电联产系统的定期维护和全面监控对性能有很大影响。由于性能数据包括热电联产系统运行的实际时间（小时和月份），因此，通过考虑高峰和非高峰期能源成本和收益之间的巨大差异来评估这种分布式发电资源的效果。此程序级别的分布式发电分析可以帮助程序设计者和决策者了解小型热电联产应用相对于《公共事业管理政策法案》（PURPA）设想的系统的局限性，因此可能对热电联产和分布式发电的未来具有重要的政策意义。全美国的一代计划

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