This document reports work on the DOE/METC program entitled ''Evaluation of Alternate Combustor Concepts for Gas Turbine Applications.''This program aimed at an evaluation of the potential for controlling the products of combustion from coal combustion by the use of a slagging combustor. The coal fuels considered were coal water mixtures and dry pulverized coal. The program work included the design and fabrication of a refractory lined slagging combustor and combustion testing at 6 atmospheres pressure utilizing these coal fuels. Two combustion test runs utilizing No. 2 fuel oil and coal water slurry were made and showed that the combustor design and the test implementation were viable. The work has demonstrated the preliminary performance of slagging combustor system designed and fabricated under this program. Test results to date indicate that the designed exit temperatures have been obtained and that slagging can occur at these temperatures. Thus, this system is ready for the additional tests required to delineate the problems in coal-burning in a gas turbine combustor. 30 figs., 17 tabs.