Monitoring and Commissioning Verification Algorithms for CHP Systems

Brambley, Michael R. ; Katipamula, Srinivas ; Jiang, Wei

Pacific Northwest National Laboratory (U.S.)

关键词: Monitoring;    Cogeneration;    Performance Testing;    Dual-Purpose Power Plants;    Algorithms;   

DOI  :  10.2172/934890
RP-ID  :  PNNL-17432
RP-ID  :  AC05-76RL01830
RP-ID  :  934890

美国|英语

来源: UNT Digital Library

【 摘 要 】

This document provides the algorithms for CHP system performance monitoring and commissioning verification (CxV). It starts by presenting system-level and component-level performance metrics, followed by descriptions of algorithms for performance monitoring and commissioning verification, using the metric presented earlier. Verification of commissioning is accomplished essentially by comparing actual measured performance to benchmarks for performance provided by the system integrator and/or component manufacturers. The results of these comparisons are then automatically interpreted to provide conclusions regarding whether the CHP system and its components have been properly commissioned and where problems are found, guidance is provided for corrections. A discussion of uncertainty handling is then provided, which is followed by a description of how simulations models can be used to generate data for testing the algorithms. A model is described for simulating a CHP system consisting of a micro-turbine, an exhaust-gas heat recovery unit that produces hot water, a absorption chiller and a cooling tower. The process for using this model for generating data for testing the algorithms for a selected set of faults is described. The next section applies the algorithms developed to CHP laboratory and field data to illustrate their use. The report then concludes with a discussion of the need for laboratory testing of the algorithms on a physical CHP systems and identification of the recommended next steps.