What is a buffer tank primarily used for in a cooling system?

A buffer tank plays a crucial role in managing the flow and temperature of the water in a cooling system, particularly when it is integrated with chillers and cooling towers. Its primary function is to receive and supply water to the condenser, which allows for a more stable and continuous flow of water in the system.

By maintaining a reserve of water, the buffer tank helps to absorb variations in demand, providing a consistent supply to the condenser, which improves the overall efficiency of the cooling process. This ability to moderate fluctuations in water flow and temperature helps optimize the performance of the entire cooling system.

While options related to refrigerant storage, air circulation, and pressure regulation are important aspects of system design and operation, they do not directly pertain to the primary function of a buffer tank. The buffer tank's central role in providing a stable source of water for heat exchange makes it essential for maintaining effective cooling operations.