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Show Figure 1 shows the physical layout of the METC combustion facility. There are two primary test cells, areas 103 and 105, a staging area, fuel handling room, control room, and clean room. The area 105 test cell is a high bay area with a ceiling height of 30 feet. It is large enough to hold at least two test units. Test cell 103 has a ceiling height of 20 feet on the north side and a height of 10 feet on the south side. The staging area is used to assemble combustors for tests and perform minor repair and fabrication tasks. It will also be used as a test area for cold flow visualization models and other small ambient pressure and temperature rigs. A Distributed Control System (DCS) is located in the control room to remotely operate combustion systems that are in any of the test cells. The DCS is readily configured to control the various combustors and is linked to a high speed distributed data acquisition system (DDAS). The facility was sized to support combustion systems up to 3 MWt (10 MM Btu/hr) scale. A maximum of 1.7 kg/s (3.8 lbs/s) of high pressure air (700 psi) enters the building and passes through a manifold where a portion or all of the air can be diverted to preheaters. The preheaters can deliver up to 1.5 kg/s (3.3 lbs/s) of high pressure combustion air at 565 C (1050 F). The preheated air is metered and delivered to either of the two high pressure cells. Table 1 summarizes the utilities and services available in the main test cells. LOW EMISSIONS COMBUSTOR TEST REACTOR A major activity within the METC combustion facility during the past year has been the design and development of a low emissions combustor test and research (LECTR) facility. The heart of the LECTR facility is a 60 centimeter (24 inch) diameter refractory lined pressure vessel. The vessel is made up of a series of flanged sections including an inlet plenum, two combustor test sections, a sampling cross, and an afterburner/quench section. The modular construction offers the flexibility to test a variety of NOx or other emissions control concepts. Combustor test modules are sandwiched between the gas inlet and sampling plenums with a maximum available combustion test zone 2.2 m (90 inches) in length. These test modules are custom designed for specific applications by varying the internal wall diameter and mating to the inlet gas plenum. With this arrangement, multiple combustor concepts can be evaluated without the need to design and build new flow control loops and sampling systems, thus saving time and money. Figure 2 illustrates the LECTR facility pressure vessel showing a test module configured for studying the performance of a porous radiant burner. The METC combustion facility is instrumented with an array of combustion gas analyzers for meas3u rement of both major and mi1n-5o r |