FROM: Robert Thompson, General Manager
Originator: Riaz Moinuddin, Director of Operations & Maintenance
SUBJECT:
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OVERHAUL ON THREE TURBOCHARGERS AT CENTRAL GENERATION ENGINES AT PLANT NO. 2
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GENERAL MANAGER'S RECOMMENDATION
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RECOMMENDATION:
A. Approve a Sole Source Purchase Order to Cooper Machinery Services for a complete rebuild of three turbochargers for the Central Generation Engines at Plant No. 2 for a total amount not to exceed $225,000, including applicable taxes and freight; and
B. Approve a contingency of $22,500 (10%).
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BACKGROUND
The Orange County Sanitation District (OC San) uses five engines at the Central Generation station at Plant No. 2 to convert biogas to electricity and heat to support the plant recycling process. These generator engines provide necessary power for process area Distribution Centers and also provide backup power in the event Southern California Edison loses power. These engines comply with SCAQMD requirements and meet all regulatory operational permits.
RELEVANT STANDARDS
* 24/7/365 treatment plant reliability
* Use all practical and effective means for resource recovery
* Maintain a proactive asset management program
* Operate and maintain facilities to minimize impacts on surrounding communities, including odor, noise, and lighting
PROBLEM
Currently, three engine turbochargers need refurbishment, two engines are currently not available for operation, and one turbocharger unit is a spare. With the two engines not available, Plant No. 2 is vulnerable to power upsets and power distribution instability which is detrimental to Plant No. 2 process operations.
PROPOSED SOLUTION
The three turbochargers require a complete rebuild by the Original Equipment Manufacturer (OEM), Cooper Machinery Services. Once returned, two units will be re-installed and returned to normal plant operations and the third unit will be used as a ready warehouse spare part.
TIMING CONCERNS
Th...
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