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SRI/USEPA-GHG-VR-27 September 2003 throughout the state of New York under NYSERDA-sponsored programs. This verification evaluated the performance of a Capstone 60 kW Microturbine Combined Heat and Power System (CHP System) installed and integrated by CDH Energy Corporation (CDH). The test unit is currently in use at the Waldbaums Supermarket in Hauppauge, New York. The CHP System uses a natural gas-fired 60 kW microturbine for electricity generation, and a heat recovery unit to provide space heating or desiccant regeneration at the supermarket. Facility electrical and thermal demand exceeds the CHP capacity, so the facility can operate the system continuously at full load. The system is interconnected to the electric utility grid, but the facility does not anticipate exporting power for sale. The GHG Center evaluated the performance of the CHP system by conducting field tests over a seventeen-day verification period (June 4-20, 2003). These tests were planned and executed by the GHG Center to independently verify the electricity generation and use rate, thermal energy recovery rate, electrical power quality, energy efficiency, emissions, and greenhouse gas emission reductions for the Waldbaums Supermarket. This report presents the results of these verification tests. Details on the verification test design, measurement test procedures, and Quality Assurance/Quality Control (QA/QC) procedures can be found in the Test Plan titled Test and Quality Assurance Plan for the Combined Heat and Power at a Commercial Supermarket, Capstone 60 Microturbine SystemTM [10]. It can be downloaded from the GHG Center’s web-site (www.sri-rtp.com) or the ETV Program web-site (www.epa.gov/etv). The Test Plan describes the rationale for the experimental design, the testing and instrument calibration procedures planned for use, and specific QA/QC goals and procedures. The Test Plan was reviewed and revised based on comments received from NYSERDA, system integrators at the supermarket (CDH Energy), and the EPA Quality Assurance Team. The Test Plan meets the requirements of the GHG Center's Quality Management Plan (QMP) and satisfies the ETV QMP requirements. Deviations from the Test Plan were required in some cases. These deviations and the alternative procedures selected for use were initially documented in Corrective Action Reports (CARs) and are discussed in this report. The remainder of Section 1.0 describes the CHP system technology and test facility and outlines the performance verification procedures that were followed. Section 2 presents test results, and Section 3 assesses the quality of the data obtained. Section 4, submitted by CDH Energy, presents additional information regarding the CHP system. Information provided in Section 4 has not been independently verified by the GHG Center. 1.2. CHP TECHNOLOGY DESCRIPTION Natural gas-fired turbines have been used to generate electricity since the 1950s. Technical and manufacturing developments in the last decade have enabled the introduction of microturbines, with generation capacity ranging from 30 to 200 kW. Microturbines have evolved from automotive and truck turbocharger technology and small jet-engine technology. A microturbine consists of a compressor, combustor, power turbine, and generator. They have a small number of moving parts and their compact size enables them to be located on sites with limited space. A waste heat-recovery system can be integrated with a microturbine to achieve higher efficiencies for sites with thermal demands. The microturbine system verified at Waldbaums Supermarket is shown in Figure 1-1. It consists of a Capstone 60 MicroTurbine (developed by Capstone Turbine Corporation) and a heat-recovery system (developed by Unifin International). The CHP system also includes a Copeland-Scroll natural gas compressor which is needed to boost the delivered gas pressure from approximately 5 to 90 psig. The compressed gas is regulated at 75 psig as required by the Capstone. Figure 1-2 illustrates a simplified 1-2PDF Image | Environmental Technology Verification Report
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