INDUSTRIAL ADVANCED TURBINE SYSTEMS: DEVELOPMENT & DEMONSTRATION Page: 2 of 6
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WBS 44100: Host Site Test & Evaluation - Mercury 50
Summary: Rochelle Municipal Utilities (RMU) was selected for the field evaluation site
and placed an order for the first Mercury 50 generator set in November 1997. Field
evaluation of the Mercury 50 package at Rochelle began in June 2000 and ran through
December 2003. A total of 4,749 package hours were achieved on two generation 2-
design engines. Engine Serial Number (ESN) 6 was installed in April 2000 and
accumulated 2,324 hours and 267 starts until it was exchanged for ESN 7 in April 2001.
ESN 7 ran until completion of the field evaluation period accumulating 2,426 hours and
292 starts. While the 4,749 hours of package operation falls short of the 8,000-hour goal,
important lessons were learned at the Rochelle site that resulted in bringing a far superior
generation 3 Mercury 50 package to commercialization. Among the issues raised and
resolved were:Engine shaft stability
Engine power and efficiency degradation
> Air inlet Restrictions
> Compressor Efficiency
> Turbine Efficiency
> Exhaust System Cracks/Leaks
Recuperator Core Durability
Cold Weather Operations
Valve Actuator Reliability
Remote Operation and Maintenance SupportI
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-- tr - -Figure 1 Mercury 50 Installed at Rochelle Municipal Utilities
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Escola, George. INDUSTRIAL ADVANCED TURBINE SYSTEMS: DEVELOPMENT & DEMONSTRATION, report, February 20, 2004; United States. (https://digital.library.unt.edu/ark:/67531/metadc788663/m1/2/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.