What is the purpose of keeping pressure within appropriate limits in refrigeration systems?

Keeping pressure within appropriate limits in refrigeration systems is critical for ensuring operational efficiency and preventing damage to the system components. Refrigeration systems are designed to operate at specific pressure ranges that correspond to the boiling and condensing points of the refrigerant being used. When pressures deviate from these limits, it can lead to several adverse effects.

Excessively high pressure can cause stress on pipes, fittings, and seals, leading to leaks or failures. In contrast, low pressure can result in insufficient refrigerant flow, reducing cooling capacity and leading to higher energy consumption as the system struggles to meet the desired cooling load. Maintaining the correct pressure ensures that the refrigeration cycle operates optimally, promoting effective heat exchange and ensuring reliable system performance.

This careful management of pressure not only protects mechanical integrity but also contributes to energy efficiency, reducing operational costs over time while maximizing the system's lifespan and reliability.