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Development of high temperature turbine subsystem technology to a technology readiness status, phase II. Progress report, August 1978

Technical Report ·
DOI:https://doi.org/10.2172/6531078· OSTI ID:6531078
Design of the closed loop cooling water system for the Hot Gas Path Development Test Stand (HGPDTS) is complete. Several changes have been made to the low pressure loop. A heat exchanger has been added in order to provide inlet water temperature control, and a back pressure control valve has been added to maintain pressure and to prevent discharge water from flashing to steam. A decision has been made to use MZC copper powder to form the first stage HGPDTS nozzle endwalls in order to eliminate some intricate machining steps in the fabrication process. A thermal analysis of the heat transfer monolithic nozzle trailing edge (Turbine Simulator Tests) was completed. Water cooling hole parameters have been selected. A specification for the low Btu coal gas combustor has been prepared. An analysis has been initiated to evaluate the potential for meaningful simulation and measurement of turbulence in the Shock Tunnel Tests. Work on the Pilot Gas Clean Up System (PGCUS) continues. Preliminary design, flow analysis, and mechanical design of the cascade models to be used in the Aerodynamic Component Tests have been initiated. Instrumentation of test specimens for the Air Turbine Tests at GE Evendale is continuing. Startup/Shutdown requirements for the Turbine Water Cooling System in the Phase III Verification Test System are presented. The TRV flange to flange configuration/interface drawing has been upated. A finite element thermal and stress analysis of the combustor pilot zone liner has been completed. The maximum temperature calculated for the design condition is 1265/sup 0/F and occurs in a region where stress is relatively low (27,000 psi). The status of the design and development of the turbine nozzle and buckets is discussed.
Research Organization:
General Electric Co., Schenectady, NY (USA). Gas Turbine Div.
OSTI ID:
6531078
Report Number(s):
FE-1806-53
Country of Publication:
United States
Language:
English