After being required to plug an excessive number of leaking condenser tubes on the main condenser, what changes would you expect to observe when returning to normal steam plant sea speed operation?
• Main condenser heat transfer area and how plugging tubes affects condensation efficiency • Relationship between condenser pressure, saturation temperature, and cooling effectiveness • How changes in condenser performance affect hot well (condensate) temperature
• If many tubes are plugged, what happens to the total cooling surface area and the ability of the seawater to remove latent heat from the exhaust steam? • When the condenser cannot remove as much heat, does the condensate (in the hot well) end up warmer or cooler than before? • For saturated steam/condensate, if the temperature at which condensation occurs goes up, what happens to the corresponding absolute pressure in the condenser?
• Be clear whether reduced condenser efficiency tends to raise or lower the saturation temperature of the steam in the condenser. • Use steam tables or basic saturation knowledge: higher saturation temperature ↔ higher saturation pressure for steam. • Confirm that the hot well temperature trend you expect matches the pressure trend you selected from the choices.
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