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2.0 VERIFICATION RESULTS The verification period started on June 4, 2003, and continued through June 20, 2003. The controlled tests were conducted on June 4 and 5, and were followed by an extended fourteen-day period of continuous monitoring to examine heat and power output, power quality, efficiency, and emission reductions. The GHG Center acquired several types of data that represent the basis of verification results presented here. The following types of data were collected and analyzed during the verification: • Continuous measurements (for example, gas flow, gas pressure, gas temperature, power output and quality, heat recovery rate, and ambient conditions) • Fuel gas compositional data • Emissions testing data • PG compositional analyses • CHP and facility operating data The field team leader reviewed, verified, and validated some data, such as DAS file data and reasonableness checks while on site. The team leader reviewed collected data for reasonableness and completeness in the field. The data from each of the controlled test periods was reviewed on site to verify that PTC-22 variability criteria were met. The emissions testing data was validated by reviewing instrument and system calibration data and ensuring that those and other reference method criteria were met. Factory calibrations for fuel flow, pressure, temperature, electrical and thermal power output, and ambient monitoring instrumentation were reviewed on site to validate instrument functionality. Other data such as fuel LHV and PG analysis results were reviewed, verified, and validated after testing had ended. All collected data was classed as either valid, suspect, or invalid upon review, using the QA/QC criteria specified in the Test Plan. Review criteria are in the form of factory and on-site calibrations, maximum calibration and other errors, audit gas analyses results, and lab repeatability results. Results presented here are based on measurements which met the specified Data Quality Indicators (DQIs) and QC checks and were validated by the GHG Center. The days listed above include periods when the unit was operating normally. The GHG Center has made every attempt to obtain a reasonable set of data to examine daily trends in atmospheric conditions, electricity and heat production, and power quality. It should be noted that these results may not represent performance over longer operating periods or at significantly different operating conditions (especially the severe winter weather conditions that can be experienced at this site). Test results are presented in the following subsections: Section 2.1 – Heat and Power Production Performance (short-term controlled testing and extended monitoring) Section 2.2 – Power Quality Performance (extended monitoring) Section 2.3 – Emissions Performance and Reductions (controlled test periods) The results show that the quality of power generated by the CHP system is generally high and that the unit is capable of operating in parallel with the utility grid. The unit produced between 48 and 56 kW of net electrical power depending on ambient temperature (51 to 84 oF) during the extended monitoring 2-1 SRI/USEPA-GHG-VR-27 September 2003PDF Image | Environmental Technology Verification Report
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