21. The economizer was used with pumped circulation ( as it was usually mounted high up ) as a feedwater heater. 22. In this design, the inlet feedwater follows a continuous path without segmented sections for economizers , evaporators, and superheaters. 23. Steam was provided by ten 1, 000 HP Babcock & Wilcox marine type boilers and two Green's economizers . 24. A common form of refrigeration economizer is a " walk-in cooler economizer " or " outside air refrigeration system ". 25. A common form of refrigeration economizer is a " walk-in cooler economizer " or " outside air refrigeration system ". 26. But in 1999, the U . S . Environmental Protection Agency said in a lawsuit that the new economizer was not maintenance. 27. In both cases, the outside air must be less energetic than the return air for the system to enter the economizer mode. 28. Georgia Power said it was just routine maintenance : the replacement of a leaky, corroded system called an " economizer ." 29. A fossil fuel steam generator includes an economizer , a steam drum, and the furnace with its steam generating tubes and superheater coils. 30. They are historically known as the " strainer cycle ", but the water-side economizer is not a true thermodynamic cycle.
