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System Descriptions

Plant specific System Descriptions (SD's) are developed for plant personnel to provide, in a standard format, a clear and comprehensive discussion of each major system at the plant.  These descriptions can be part of a Training Manual, or as a plant reference book.  System descriptions are supported with vendor illustrations, actual plant photographs, and computer generated graphics.

In general, a System Description is developed for each plant system, such as Condensate, Compressed Air, Plant Wastewater, etc.  Each SD contains the same sections for consistency and ease of locating information.  This example Table of Contents illustrates what is developed for each system:

For each plant system, its SD begins with the following sections:

• Learning Objectives - If the SD is part of a Training Manual, Learning Objectives are provided.
• Purpose - Describes the function of the system and its importance as part of the integrated plant.
• Flowpath Description - Provides an overview of the system flowpath, interconnection with other systems, and a summary of the major equipment and instrumentation in that system.  For some systems, a CAD drawn simplified flow diagram is provided so complex flowpaths can be easily understood.

For each piece of Major Equipment in the system, the following sections are developed:

• Function - Briefly describes the purpose of the equipment as part of the entire system.
• Description - Provides details on the mechanical and electrical construction, and any supporting systems, such as, lube oil skid, cooling water skid, or local PLC.
• Controls and Operation - This section covers, in detail, the specific local and DCS controls, instrumentation, and operational (control) logic associated with that component.  Equipment and System operation, including starting, stopping, manual/auto and local/remote operation, start permissives, and trip logic is explained in an easy to follow, list format.