Coal gasification/gas cleanup fuel plants for synthetic fuel applications must be developed within the constraints imposed by dynamic load response to variations in end-use demand and compliance with environmental regulations. The overall objective of the program is to develop the technology base required to permit coal conversion systems to operate within the constraints imposed by end-use applications. The fuel plant performance will be characterized in both steady state and dynamic operations; component interactions and end-use interactions will also be characterized. The information required to establish system control logic will be developed. The combined experimental/analytical approach employed will yield empirically verified performance projections for full-scale systems. The 1981 Operational Test Plan has been prepared defining tests in the Process Evaluation Facility (PEF) with the objectives of (1) characterizing the integrated fuel plant interactions and performance; (2) characterizing individual component performance; and (3) providing performance data for evaluation and verification of analytical models under development. A series of unfired dynamic tests along with fired steady state tests have been defined. Thermal decomposition of ammonia has been investigated experimentally and analytically. High conversion rates were observed for binary NH/sub 3//H/sub 2/ gas mixtures; however, conversion was found to be thermodynamically limited when substantial H/sub 2/ and N/sub 2/ concentrations are present. The overall structure of the IGCC mathematical model has been developed and information flow requirements associated with each component in the model have been defined. The computer model for the gasifier and the first water quench have been completed.