In order to achieve greater dehumidification,...

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Question 1 of 205eccef9dbacbc34ba4d45ec4

In order to achieve greater dehumidification, you would adjust the air conditioning system by which of the listed means? reducing the chill water flow through the cooling coil increasing the preheater temperature

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🔍 Key Concepts

• Sensible cooling vs. latent cooling (dehumidification) in an HVAC coil • Effect of chilled water flow rate on coil surface temperature and moisture removal • Role of reheat / preheating after cooling in both comfort and dehumidification

💭 Think About

• When air passes over a cooling coil, what has to happen for moisture to condense out of the air? How does coil temperature and contact time affect this? • If you reduce chilled-water flow through the cooling coil, what happens to the average coil temperature and its ability to remove moisture from the air? • What does increasing preheater temperature do to the air’s relative humidity and comfort, and does it increase the amount of water actually removed at the cooling coil?

✅ Before You Answer

• Be clear on the difference between actual water removed (latent load) and just changing relative humidity by reheating the same moist air. • Think through whether reducing chilled water flow makes the coil colder or warmer overall, and how that affects condensation. • Consider whether preheating is typically used before or after the cooling/dehumidifying coil in marine HVAC systems, and what that means for dehumidification.

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