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PERFORMANCE ASSESSMENT OF COGENERATION SYSTEMS IN CALIFORNIA

机译：加利福尼亚州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 onsite 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 heat 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.
机译：在过去的几年里，客户坐在的热电联产系统已被视为减轻电源短缺的一种方式。在实用程序方面，实现这一目标需要热​​电联产系统以相对高的容量因子运行，特别是在高峰期间。在客户方面，热电联产系统必须能够降低运营成本，这可以通过以高运行效率运行和恢复可用的废热来实现。我们公司一直在评估在自发行激励计划（SGIP）下安装的客户级热电联产系统。本文将为SGIP工作组进行的深入绩效评估结果，以评估接受该计划中获得激励措施的现场热能系统的有效热能回收的有效性。早期的研究调查了SGIP中的热电联产系统所获得的能效和有用的废热回收水平。本研究提出了有关热电联产系统实际运作效率和低热热回收的一些有趣问题。通过纳入燃料消耗，通过程序的测量和评估监测工作获得的热能回收和主要动力性能数据，将实际测量性能与每个项目的性能估算进行比较。热热回收在热电联产系统的整体性能中起着重要作用。本文将探讨意外低热能回收和整体植物性能背后的一些关键驱动因素。还将讨论改善有用的废热回收的可能方法。

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