What is the primary purpose of the receiver-dryer in a vapor-cycle cooling system?

The primary purpose of the receiver-dryer in a vapor-cycle cooling system is to remove moisture and contaminants from the refrigerant. Moisture in the system can lead to significant problems, such as corrosion, ice formation, and reduced efficiency. The receiver-dryer contains desiccant materials that absorb any moisture present, ensuring that the refrigerant remains dry as it circulates through the system. In addition to moisture removal, the receiver-dryer also helps filter out any contaminants, such as dirt and debris, that could cause damage or impair the performance of the system components. By maintaining a clean and moisture-free environment, the receiver-dryer plays a crucial role in prolonging the life of the cooling system and maintaining its efficiency.