Dissolved moisture circulating in a refrigerant is successfully extracted using___________________?
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Answer: D. driers
Explanation
Driers containing desiccants are installed in refrigeration systems to extract dissolved moisture successfully. Moisture can react with lubricants to form harmful acids that corrode internal compressor parts. Filter driers trap both solid particulate debris and liquid water circulating in the refrigerant lines. Common desiccants used in filter driers include activated alumina and molecular sieve materials. Moisture freezing at the expansion valve orifice can block refrigerant flow entirely. Driers are typically installed in the liquid line ahead of the expansion valve for maximum efficiency.
HVAC technicians replace filter driers during routine maintenance and whenever systems are opened for repair. Preventing moisture contamination extends the operating lifespan of hermetic compressor motors significantly. Reliable moisture control is essential for maintaining dependable operation in sealed refrigeration units. Evaporator is designed for heat absorption rather than extracting moisture from the refrigerant loop. Safety relief valve protects the system from overpressure events rather than filtering contaminants. Dehumidifier removes moisture from room air rather than internal circulating refrigerant fluid.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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