ABSTRACT
In addition to the prime movers, their synchronous ac generators and the heat recovery steam generator (HRSG), there is a multitude of combined cycle pieces of equipment and systems covered under the heading of balance of plant (BOP), which includes electrical equipment, pipes and valves, condensate and feedwater pumps. Such equipment is covered in detail in this chapter. From a conceptual design and performance calculation perspective, most BOP equipment does not play a significant role (except major pumps and the fuel gas-related equipment). They are, however, important from procurement and construction (and cost estimation) perspectives and thus require some consideration. They also require close attention from a total auxiliary power consumption perspective in commercial contracts with precisely spelled-out performance guarantees and liquidated damages.
