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首页> 外文会议>Proceedings of the ASME power conference 2009 >ENERGY EFFICIENCY BY OPTIMIZING ANNUAL TESTING SCHEDULES - COORDINATING RATA TESTING WITH OTHER ANNUAL TEST REQUIREMENTS
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ENERGY EFFICIENCY BY OPTIMIZING ANNUAL TESTING SCHEDULES - COORDINATING RATA TESTING WITH OTHER ANNUAL TEST REQUIREMENTS

机译：通过优化年度测试计划来提高能源效率-协调RATA测试与其他年度测试要求

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Nearly every power plant in the US must undergo annual Relative Accuracy Test Audits (RATA testing) to confirm the values reported by their continuous emission monitoring systems (CEMS). In order to perform a RATA test, the plant must operate at one or more stable loads for a number of hours. Depending on the type of unit and fuel, the required load levels for RATA testing can range from low, mid and high loads for coal-fired units to a single (normal) load for oil and gas fired units or four loads (from partial load to maximum load) for units utilizing 40 CFR Part 75 Appendix E alternative monitoring systems. Many plants operate in a dispatch environment where the plant is not in control of their load from hour to hour, and some even from minute to minute, such as those operating under Automatic Generation Control (AGC). Scheduling plant loads for the RATA testing must often be done far in advance and can come at a high price when factoring in fuel costs.rnBecause it can be a significant undertaking to schedule the loads for a series of RATA tests, it makes economic sense to schedule other testing also requiring unit stability concurrently with the RATA tests. One of the most important tests that fits this category is performance testing for plant capacity and/or heat rate. Many plants are now required to perform capacity and/or heat rate demonstrations on a periodic basis to support their power purchase agreements or transmission reliability requirements. But even plants without performance test requirements can benefit from gathering performance related data during RATA testing. For plants dispatched based on demonstrated heat rates, understanding the heat rate impact of operating inrnAGC or at partial loads is essential. Awareness of expected heat rate is also vital for plants that must nominate their fuel consumption requirements in advance.rnIf the RATA test loads are planned correctly, performance data collected during the RATA test periods can be used not only to fulfill required demonstrations for capacity and heat rate, but also to determine the actual annual degradation (recoverable and non-recoverable) observed for the plant equipment. Test data can also be used to build or update performance forecasting tools for dispatch purposes. Depending on the complexity of the RATA testing, multiple load points may be available (from minimum to maximum load) which can provide data on fuel consumption at various loads, supporting fuel purchasing and planning requirements for the plant.rnThis paper intends to outline the value of coordinating annual performance tests with RATA tests in terms of manpower, load scheduling and fuel consumption. This paper will also discuss a number of issues that may arise when coordinating multiple tests - which could be performed by numerous independent parties, as well as the additional benefits which can be gained by collecting adequate performance data during RATA test periods.
机译：美国几乎每个发电厂都必须进行年度相对精度测试审核（RATA测试），以确认其连续排放监控系统（CEMS）报告的值。为了执行RATA测试，工厂必须在一个或多个稳定负载下运行数小时。根据设备和燃料的类型，RATA测试所需的负载级别可以从燃煤设备的低负载，中负载和高负载到燃油和燃气设备的单个（正常）负载或四个负载（部分负载）最大负荷）适用于使用40 CFR Part 75附录E替代监控系统的设备。许多工厂都在调度环境中运行，在调度环境中，工厂不时地控制自己的负荷，有些甚至不时地控制负荷，例如在自动发电控制（AGC）下运行的负荷。为RATA测试安排工厂负载通常必须提前很长的时间，并且在考虑燃料成本时可能会付出高昂的代价。由于计划一系列RATA测试的负载可能是一项艰巨的任务，因此从经济角度出发与RATA测试同时安排其他要求单元稳定性的测试。符合该类别的最重要测试之一是工厂产能和/或热效率的性能测试。现在，许多工厂都需要定期执行容量和/或热量率演示，以支持其购电协议或传输可靠性要求。但是，即使没有性能测试要求的工厂也可以从RATA测试期间收集与性能相关的数据中受益。对于根据证明的热量率调度的工厂，了解运行inrnAGC或在部分负荷下对热量率的影响至关重要。对于必须提前指定其燃料消耗要求的工厂而言，了解预期的热量速率也至关重要。rn如果正确计划了RATA测试负荷，则RATA测试期间收集的性能数据不仅可以用于满足容量和热量的演示要求率，还可以确定工厂设备观察到的实际年度退化（可恢复和不可恢复）。测试数据还可以用于构建或更新性能预测工具以用于调度目的。根据RATA测试的复杂程度，可能会提供多个负载点（从最小负载到最大负载），这些负载点可以提供有关各种负载下的油耗数据，从而支持工厂的燃料购买和计划要求。rn本文旨在概述该值在人力，负荷计划和油耗方面协调年度性能测试与RATA测试。本文还将讨论在协调多个测试时可能出现的许多问题，这些问题可以由众多独立方执行，以及通过在RATA测试期间收集足够的性能数据可以获得额外的好处。

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